(三十二)c#Winform自定义控件-表格
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2023-04-04 11:38:50
前提 入行已经7,8年了,一直想做一套漂亮点的自定义控件,于是就有了本系列文章。 开源地址:https://gitee.com/kwwwvagaa/net_winform_custom_control 如果觉得写的还行,请点个 star 支持一下吧 欢迎前来交流探讨: 企鹅群568015492 目录 ......
前提
入行已经7,8年了,一直想做一套漂亮点的自定义控件,于是就有了本系列文章。
开源地址:
如果觉得写的还行,请点个 star 支持一下吧
欢迎前来交流探讨: 企鹅群568015492
目录
准备工作
表格控件将拆分为2部分,1:行元素控件,2:列表控件
为了具有更好的扩展性,更加的open,使用接口对行元素进行约束,当行样式或功能不满足你的需求的时候,可以自定义一个行元素,实现接口控件,然后将类型指定给列表控件即可
表格控件用到了分页控件,如果你还没有对分页控件进行了解,请移步查看
开始
定义一些辅助东西
1 public class datagridviewcellentity 2 { 3 public string title { get; set; } 4 public int width { get; set; } 5 public system.windows.forms.sizetype widthtype { get; set; } 6 7 }
1 public class datagridvieweventargs : eventargs 2 { 3 public control cellcontrol { get; set; } 4 public int cellindex { get; set; } 5 public int rowindex { get; set; } 6 7 8 }
1 [serializable] 2 [comvisible(true)] 3 public delegate void datagridvieweventhandler(object sender, datagridvieweventargs e);
1 public class datagridviewcolumnentity 2 { 3 public string headtext { get; set; } 4 public int width { get; set; } 5 public system.windows.forms.sizetype widthtype { get; set; } 6 public string datafield { get; set; } 7 public func<object, string> format { get; set; } 8 }
定义行接口
1 public interface idatagridviewrow 2 { 3 /// <summary> 4 /// checkbox选中事件 5 /// </summary> 6 event datagridvieweventhandler checkboxchangeevent; 7 /// <summary> 8 /// 点击单元格事件 9 /// </summary> 10 event datagridvieweventhandler cellclick; 11 /// <summary> 12 /// 数据源改变事件 13 /// </summary> 14 event datagridvieweventhandler sourcechanged; 15 /// <summary> 16 /// 列参数,用于创建列数和宽度 17 /// </summary> 18 list<datagridviewcolumnentity> columns { get; set; } 19 bool isshowcheckbox { get; set; } 20 /// <summary> 21 /// 是否选中 22 /// </summary> 23 bool ischecked { get; set; } 24 25 /// <summary> 26 /// 数据源 27 /// </summary> 28 object datasource { get; set; } 29 /// <summary> 30 /// 添加单元格元素,仅做添加控件操作,不做数据绑定,数据绑定使用bindingcells 31 /// </summary> 32 void reloadcells(); 33 /// <summary> 34 /// 绑定数据到cell 35 /// </summary> 36 /// <param name="intindex">cell下标</param> 37 /// <returns>返回true则表示已处理过,否则将进行默认绑定(通常只针对有text值的控件)</returns> 38 void bindingcelldata(); 39 /// <summary> 40 /// 设置选中状态,通常为设置颜色即可 41 /// </summary> 42 /// <param name="blnselected">是否选中</param> 43 void setselect(bool blnselected); 44 }
创建行控件
添加一个用户控件,命名ucdatagridviewrow,实现接口idatagridviewrow
属性
1 #region 属性 2 public event datagridvieweventhandler checkboxchangeevent; 3 4 public event datagridvieweventhandler cellclick; 5 6 public event datagridvieweventhandler sourcechanged; 7 8 public list<datagridviewcolumnentity> columns 9 { 10 get; 11 set; 12 } 13 14 public object datasource 15 { 16 get; 17 set; 18 } 19 20 public bool isshowcheckbox 21 { 22 get; 23 set; 24 } 25 private bool m_ischecked; 26 public bool ischecked 27 { 28 get 29 { 30 return m_ischecked; 31 } 32 33 set 34 { 35 if (m_ischecked != value) 36 { 37 m_ischecked = value; 38 (this.pancells.controls.find("check", false)[0] as uccheckbox).checked = value; 39 } 40 } 41 } 42 43 44 #endregion
实现接口
1 public void bindingcelldata() 2 { 3 for (int i = 0; i < columns.count; i++) 4 { 5 datagridviewcolumnentity com = columns[i]; 6 var cs = this.pancells.controls.find("lbl_" + com.datafield, false); 7 if (cs != null && cs.length > 0) 8 { 9 var pro = datasource.gettype().getproperty(com.datafield); 10 if (pro != null) 11 { 12 var value = pro.getvalue(datasource, null); 13 if (com.format != null) 14 { 15 cs[0].text = com.format(value); 16 } 17 else 18 { 19 cs[0].text = value.tostringext(); 20 } 21 } 22 } 23 } 24 } 25 26 public void setselect(bool blnselected) 27 { 28 if (blnselected) 29 { 30 this.backcolor = color.fromargb(255, 247, 245); 31 } 32 else 33 { 34 this.backcolor = color.transparent; 35 } 36 } 37 38 public void reloadcells() 39 { 40 try 41 { 42 controlhelper.freezecontrol(this, true); 43 this.pancells.controls.clear(); 44 this.pancells.columnstyles.clear(); 45 46 int intcolumnscount = columns.count(); 47 if (columns != null && intcolumnscount > 0) 48 { 49 if (isshowcheckbox) 50 { 51 intcolumnscount++; 52 } 53 this.pancells.columncount = intcolumnscount; 54 for (int i = 0; i < intcolumnscount; i++) 55 { 56 control c = null; 57 if (i == 0 && isshowcheckbox) 58 { 59 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(sizetype.absolute, 30f)); 60 61 uccheckbox box = new uccheckbox(); 62 box.name = "check"; 63 box.textvalue = ""; 64 box.size = new size(30, 30); 65 box.dock = dockstyle.fill; 66 box.checkedchangeevent += (a, b) => 67 { 68 ischecked = box.checked; 69 if (checkboxchangeevent != null) 70 { 71 checkboxchangeevent(a, new datagridvieweventargs() 72 { 73 cellcontrol = box, 74 cellindex = 0 75 }); 76 } 77 }; 78 c = box; 79 } 80 else 81 { 82 var item = columns[i - (isshowcheckbox ? 1 : 0)]; 83 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(item.widthtype, item.width)); 84 85 label lbl = new label(); 86 lbl.tag = i - (isshowcheckbox ? 1 : 0); 87 lbl.name = "lbl_" + item.datafield; 88 lbl.font = new font("微软雅黑", 12); 89 lbl.forecolor = color.black; 90 lbl.autosize = false; 91 lbl.dock = dockstyle.fill; 92 lbl.textalign = contentalignment.middlecenter; 93 lbl.mousedown += (a, b) => 94 { 95 item_mousedown(a, b); 96 }; 97 c = lbl; 98 } 99 this.pancells.controls.add(c, i, 0); 100 } 101 102 } 103 } 104 finally 105 { 106 controlhelper.freezecontrol(this, false); 107 } 108 }
节点选中事件
1 void item_mousedown(object sender, mouseeventargs e) 2 { 3 if (cellclick != null) 4 { 5 cellclick(sender, new datagridvieweventargs() 6 { 7 cellcontrol = this, 8 cellindex = (sender as control).tag.toint() 9 }); 10 } 11 }
完整的代码
1 // 版权所有 黄正辉 交流群:568015492 qq:623128629 2 // 文件名称:ucdatagridviewrow.cs 3 // 创建日期:2019-08-15 15:59:31 4 // 功能描述:datagridview 5 // 项目地址:https://gitee.com/kwwwvagaa/net_winform_custom_control 6 using system; 7 using system.collections.generic; 8 using system.componentmodel; 9 using system.drawing; 10 using system.data; 11 using system.linq; 12 using system.text; 13 using system.windows.forms; 14 15 namespace hzh_controls.controls 16 { 17 [toolboxitem(false)] 18 public partial class ucdatagridviewrow : usercontrol, idatagridviewrow 19 { 20 21 #region 属性 22 public event datagridvieweventhandler checkboxchangeevent; 23 24 public event datagridvieweventhandler cellclick; 25 26 public event datagridvieweventhandler sourcechanged; 27 28 public list<datagridviewcolumnentity> columns 29 { 30 get; 31 set; 32 } 33 34 public object datasource 35 { 36 get; 37 set; 38 } 39 40 public bool isshowcheckbox 41 { 42 get; 43 set; 44 } 45 private bool m_ischecked; 46 public bool ischecked 47 { 48 get 49 { 50 return m_ischecked; 51 } 52 53 set 54 { 55 if (m_ischecked != value) 56 { 57 m_ischecked = value; 58 (this.pancells.controls.find("check", false)[0] as uccheckbox).checked = value; 59 } 60 } 61 } 62 63 64 #endregion 65 66 public ucdatagridviewrow() 67 { 68 initializecomponent(); 69 } 70 71 public void bindingcelldata() 72 { 73 for (int i = 0; i < columns.count; i++) 74 { 75 datagridviewcolumnentity com = columns[i]; 76 var cs = this.pancells.controls.find("lbl_" + com.datafield, false); 77 if (cs != null && cs.length > 0) 78 { 79 var pro = datasource.gettype().getproperty(com.datafield); 80 if (pro != null) 81 { 82 var value = pro.getvalue(datasource, null); 83 if (com.format != null) 84 { 85 cs[0].text = com.format(value); 86 } 87 else 88 { 89 cs[0].text = value.tostringext(); 90 } 91 } 92 } 93 } 94 } 95 96 void item_mousedown(object sender, mouseeventargs e) 97 { 98 if (cellclick != null) 99 { 100 cellclick(sender, new datagridvieweventargs() 101 { 102 cellcontrol = this, 103 cellindex = (sender as control).tag.toint() 104 }); 105 } 106 } 107 108 public void setselect(bool blnselected) 109 { 110 if (blnselected) 111 { 112 this.backcolor = color.fromargb(255, 247, 245); 113 } 114 else 115 { 116 this.backcolor = color.transparent; 117 } 118 } 119 120 public void reloadcells() 121 { 122 try 123 { 124 controlhelper.freezecontrol(this, true); 125 this.pancells.controls.clear(); 126 this.pancells.columnstyles.clear(); 127 128 int intcolumnscount = columns.count(); 129 if (columns != null && intcolumnscount > 0) 130 { 131 if (isshowcheckbox) 132 { 133 intcolumnscount++; 134 } 135 this.pancells.columncount = intcolumnscount; 136 for (int i = 0; i < intcolumnscount; i++) 137 { 138 control c = null; 139 if (i == 0 && isshowcheckbox) 140 { 141 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(sizetype.absolute, 30f)); 142 143 uccheckbox box = new uccheckbox(); 144 box.name = "check"; 145 box.textvalue = ""; 146 box.size = new size(30, 30); 147 box.dock = dockstyle.fill; 148 box.checkedchangeevent += (a, b) => 149 { 150 ischecked = box.checked; 151 if (checkboxchangeevent != null) 152 { 153 checkboxchangeevent(a, new datagridvieweventargs() 154 { 155 cellcontrol = box, 156 cellindex = 0 157 }); 158 } 159 }; 160 c = box; 161 } 162 else 163 { 164 var item = columns[i - (isshowcheckbox ? 1 : 0)]; 165 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(item.widthtype, item.width)); 166 167 label lbl = new label(); 168 lbl.tag = i - (isshowcheckbox ? 1 : 0); 169 lbl.name = "lbl_" + item.datafield; 170 lbl.font = new font("微软雅黑", 12); 171 lbl.forecolor = color.black; 172 lbl.autosize = false; 173 lbl.dock = dockstyle.fill; 174 lbl.textalign = contentalignment.middlecenter; 175 lbl.mousedown += (a, b) => 176 { 177 item_mousedown(a, b); 178 }; 179 c = lbl; 180 } 181 this.pancells.controls.add(c, i, 0); 182 } 183 184 } 185 } 186 finally 187 { 188 controlhelper.freezecontrol(this, false); 189 } 190 } 191 192 193 } 194 }
1 namespace hzh_controls.controls 2 { 3 partial class ucdatagridviewrow 4 { 5 /// <summary> 6 /// 必需的设计器变量。 7 /// </summary> 8 private system.componentmodel.icontainer components = null; 9 10 /// <summary> 11 /// 清理所有正在使用的资源。 12 /// </summary> 13 /// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param> 14 protected override void dispose(bool disposing) 15 { 16 if (disposing && (components != null)) 17 { 18 components.dispose(); 19 } 20 base.dispose(disposing); 21 } 22 23 #region 组件设计器生成的代码 24 25 /// <summary> 26 /// 设计器支持所需的方法 - 不要 27 /// 使用代码编辑器修改此方法的内容。 28 /// </summary> 29 private void initializecomponent() 30 { 31 this.ucsplitline_h1 = new hzh_controls.controls.ucsplitline_h(); 32 this.pancells = new system.windows.forms.tablelayoutpanel(); 33 this.suspendlayout(); 34 // 35 // ucsplitline_h1 36 // 37 this.ucsplitline_h1.backcolor = system.drawing.color.fromargb(((int)(((byte)(232)))), ((int)(((byte)(232)))), ((int)(((byte)(232))))); 38 this.ucsplitline_h1.dock = system.windows.forms.dockstyle.bottom; 39 this.ucsplitline_h1.location = new system.drawing.point(0, 55); 40 this.ucsplitline_h1.name = "ucsplitline_h1"; 41 this.ucsplitline_h1.size = new system.drawing.size(661, 1); 42 this.ucsplitline_h1.tabindex = 0; 43 this.ucsplitline_h1.tabstop = false; 44 // 45 // pancells 46 // 47 this.pancells.columncount = 1; 48 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(system.windows.forms.sizetype.percent, 100f)); 49 this.pancells.columnstyles.add(new system.windows.forms.columnstyle(system.windows.forms.sizetype.absolute, 20f)); 50 this.pancells.dock = system.windows.forms.dockstyle.fill; 51 this.pancells.location = new system.drawing.point(0, 0); 52 this.pancells.name = "pancells"; 53 this.pancells.rowcount = 1; 54 this.pancells.rowstyles.add(new system.windows.forms.rowstyle(system.windows.forms.sizetype.percent, 100f)); 55 this.pancells.rowstyles.add(new system.windows.forms.rowstyle(system.windows.forms.sizetype.absolute, 20f)); 56 this.pancells.size = new system.drawing.size(661, 55); 57 this.pancells.tabindex = 1; 58 // 59 // ucdatagridviewitem 60 // 61 this.autoscalemode = system.windows.forms.autoscalemode.none; 62 this.backcolor = system.drawing.color.white; 63 this.controls.add(this.pancells); 64 this.controls.add(this.ucsplitline_h1); 65 this.name = "ucdatagridviewitem"; 66 this.size = new system.drawing.size(661, 56); 67 this.resumelayout(false); 68 69 } 70 71 #endregion 72 73 private ucsplitline_h ucsplitline_h1; 74 private system.windows.forms.tablelayoutpanel pancells; 75 } 76 }
接下来就是列表控件了
添加一个用户控件,命名ucdatagridview
属性
1 #region 属性 2 private font m_headfont = new font("微软雅黑", 12f); 3 /// <summary> 4 /// 标题字体 5 /// </summary> 6 [description("标题字体"), category("自定义")] 7 public font headfont 8 { 9 get { return m_headfont; } 10 set { m_headfont = value; } 11 } 12 private color m_headtextcolor = color.black; 13 /// <summary> 14 /// 标题字体颜色 15 /// </summary> 16 [description("标题文字颜色"), category("自定义")] 17 public color headtextcolor 18 { 19 get { return m_headtextcolor; } 20 set { m_headtextcolor = value; } 21 } 22 23 private bool m_isshowhead = true; 24 /// <summary> 25 /// 是否显示标题 26 /// </summary> 27 [description("是否显示标题"), category("自定义")] 28 public bool isshowhead 29 { 30 get { return m_isshowhead; } 31 set 32 { 33 m_isshowhead = value; 34 panhead.visible = value; 35 if (m_page != null) 36 { 37 resetshowcount(); 38 m_page.pagesize = m_showcount; 39 } 40 } 41 } 42 private int m_headheight = 40; 43 /// <summary> 44 /// 标题高度 45 /// </summary> 46 [description("标题高度"), category("自定义")] 47 public int headheight 48 { 49 get { return m_headheight; } 50 set 51 { 52 m_headheight = value; 53 panhead.height = value; 54 } 55 } 56 57 private bool m_isshowcheckbox = false; 58 /// <summary> 59 /// 是否显示复选框 60 /// </summary> 61 [description("是否显示选择框"), category("自定义")] 62 public bool isshowcheckbox 63 { 64 get { return m_isshowcheckbox; } 65 set 66 { 67 if (value != m_isshowcheckbox) 68 { 69 m_isshowcheckbox = value; 70 loadcolumns(); 71 } 72 } 73 } 74 75 private int m_rowheight = 40; 76 /// <summary> 77 /// 行高 78 /// </summary> 79 [description("数据行高"), category("自定义")] 80 public int rowheight 81 { 82 get { return m_rowheight; } 83 set { m_rowheight = value; } 84 } 85 86 private int m_showcount = 0; 87 /// <summary> 88 /// 89 /// </summary> 90 [description("可显示个数"), category("自定义")] 91 public int showcount 92 { 93 get { return m_showcount; } 94 private set 95 { 96 m_showcount = value; 97 if (m_page != null) 98 { 99 m_page.pagesize = value; 100 } 101 } 102 } 103 104 private list<datagridviewcolumnentity> m_columns; 105 /// <summary> 106 /// 列 107 /// </summary> 108 [description("列"), category("自定义")] 109 public list<datagridviewcolumnentity> columns 110 { 111 get { return m_columns; } 112 set 113 { 114 m_columns = value; 115 loadcolumns(); 116 } 117 } 118 119 private object m_datasource; 120 /// <summary> 121 /// 数据源,支持列表或table,如果使用翻页控件,请使用翻页控件的datasource 122 /// </summary> 123 [description("数据源,支持列表或table,如果使用翻页控件,请使用翻页控件的datasource"), category("自定义")] 124 public object datasource 125 { 126 get { return m_datasource; } 127 set 128 { 129 if (value == null) 130 return; 131 if (!(m_datasource is datatable) && (!typeof(ilist).isassignablefrom(value.gettype()))) 132 { 133 throw new exception("数据源不是有效的数据类型,请使用datatable或列表"); 134 } 135 136 m_datasource = value; 137 reloadsource(); 138 } 139 } 140 141 public list<idatagridviewrow> rows { get; private set; } 142 143 private type m_rowtype = typeof(ucdatagridviewrow); 144 /// <summary> 145 /// 行元素类型,默认ucdatagridviewitem 146 /// </summary> 147 [description("行控件类型,默认ucdatagridviewrow,如果不满足请自定义行控件实现接口idatagridviewrow"), category("自定义")] 148 public type rowtype 149 { 150 get { return m_rowtype; } 151 set 152 { 153 if (value == null) 154 return; 155 if (!typeof(idatagridviewrow).isassignablefrom(value) || !value.issubclassof(typeof(control))) 156 throw new exception("行控件没有实现idatagridviewrow接口"); 157 m_rowtype = value; 158 } 159 } 160 idatagridviewrow m_selectrow = null; 161 /// <summary> 162 /// 选中的节点 163 /// </summary> 164 [description("选中行"), category("自定义")] 165 public idatagridviewrow selectrow 166 { 167 get { return m_selectrow; } 168 private set { m_selectrow = value; } 169 } 170 171 172 /// <summary> 173 /// 选中的行,如果显示checkbox,则以checkbox选中为准 174 /// </summary> 175 [description("选中的行,如果显示checkbox,则以checkbox选中为准"), category("自定义")] 176 public list<idatagridviewrow> selectrows 177 { 178 get 179 { 180 if (m_isshowcheckbox) 181 { 182 return rows.findall(p => p.ischecked); 183 } 184 else 185 return new list<idatagridviewrow>() { m_selectrow }; 186 } 187 } 188 189 190 private ucpagercontrolbase m_page = null; 191 /// <summary> 192 /// 翻页控件 193 /// </summary> 194 [description("翻页控件,如果ucpagercontrol不满足你的需求,请自定义翻页控件并继承ucpagercontrolbase"), category("自定义")] 195 public ucpagercontrolbase page 196 { 197 get { return m_page; } 198 set 199 { 200 m_page = value; 201 if (value != null) 202 { 203 if (!typeof(ipagecontrol).isassignablefrom(value.gettype()) || !value.gettype().issubclassof(typeof(ucpagercontrolbase))) 204 throw new exception("翻页控件没有继承ucpagercontrolbase"); 205 panpage.visible = value != null; 206 m_page.showsourcechanged += page_showsourcechanged; 207 m_page.dock = dockstyle.fill; 208 this.panpage.controls.clear(); 209 this.panpage.controls.add(m_page); 210 resetshowcount(); 211 m_page.pagesize = showcount; 212 this.datasource = m_page.getcurrentsource(); 213 } 214 else 215 { 216 m_page = null; 217 } 218 } 219 } 220 221 void page_showsourcechanged(object currentsource) 222 { 223 this.datasource = currentsource; 224 } 225 226 #region 事件 227 [description("选中标题选择框事件"), category("自定义")] 228 public eventhandler headcheckboxchangeevent; 229 [description("标题点击事件"), category("自定义")] 230 public eventhandler headcolumnclickevent; 231 [description("项点击事件"), category("自定义")] 232 public event datagridvieweventhandler itemclick; 233 [description("数据源改变事件"), category("自定义")] 234 public event datagridvieweventhandler sourcechanged; 235 #endregion 236 #endregion
一些私有的方法
1 #region 私有方法 2 #region 加载column 3 /// <summary> 4 /// 功能描述:加载column 5 /// 作 者:hzh 6 /// 创建日期:2019-08-08 17:51:50 7 /// 任务编号:pos 8 /// </summary> 9 private void loadcolumns() 10 { 11 try 12 { 13 if (designmode) 14 { return; } 15 16 controlhelper.freezecontrol(this.panhead, true); 17 this.pancolumns.controls.clear(); 18 this.pancolumns.columnstyles.clear(); 19 20 if (m_columns != null && m_columns.count() > 0) 21 { 22 int intcolumnscount = m_columns.count(); 23 if (m_isshowcheckbox) 24 { 25 intcolumnscount++; 26 } 27 this.pancolumns.columncount = intcolumnscount; 28 for (int i = 0; i < intcolumnscount; i++) 29 { 30 control c = null; 31 if (i == 0 && m_isshowcheckbox) 32 { 33 this.pancolumns.columnstyles.add(new system.windows.forms.columnstyle(sizetype.absolute, 30f)); 34 35 uccheckbox box = new uccheckbox(); 36 box.textvalue = ""; 37 box.size = new size(30, 30); 38 box.checkedchangeevent += (a, b) => 39 { 40 rows.foreach(p => p.ischecked = box.checked); 41 if (headcheckboxchangeevent != null) 42 { 43 headcheckboxchangeevent(a, b); 44 } 45 }; 46 c = box; 47 } 48 else 49 { 50 var item = m_columns[i - (m_isshowcheckbox ? 1 : 0)]; 51 this.pancolumns.columnstyles.add(new system.windows.forms.columnstyle(item.widthtype, item.width)); 52 label lbl = new label(); 53 lbl.name = "dgvcolumns_" + i; 54 lbl.text = item.headtext; 55 lbl.font = m_headfont; 56 lbl.forecolor = m_headtextcolor; 57 lbl.textalign = contentalignment.middlecenter; 58 lbl.autosize = false; 59 lbl.dock = dockstyle.fill; 60 lbl.mousedown += (a, b) => 61 { 62 if (headcolumnclickevent != null) 63 { 64 headcolumnclickevent(a, b); 65 } 66 }; 67 c = lbl; 68 } 69 this.pancolumns.controls.add(c, i, 0); 70 } 71 72 } 73 } 74 finally 75 { 76 controlhelper.freezecontrol(this.panhead, false); 77 } 78 } 79 #endregion 80 81 /// <summary> 82 /// 功能描述:获取显示个数 83 /// 作 者:hzh 84 /// 创建日期:2019-03-05 10:02:58 85 /// 任务编号:pos 86 /// </summary> 87 /// <returns>返回值</returns> 88 private void resetshowcount() 89 { 90 if (designmode) 91 { return; } 92 showcount = this.panrow.height / (m_rowheight); 93 int intcha = this.panrow.height % (m_rowheight); 94 m_rowheight += intcha / showcount; 95 } 96 #endregion
几个事件
1 #region 事件 2 void rowsourcechanged(object sender, datagridvieweventargs e) 3 { 4 if (sourcechanged != null) 5 sourcechanged(sender, e); 6 } 7 private void setselectrow(control item, datagridvieweventargs e) 8 { 9 try 10 { 11 controlhelper.freezecontrol(this, true); 12 if (item == null) 13 return; 14 if (item.visible == false) 15 return; 16 this.findform().activecontrol = this; 17 this.findform().activecontrol = item; 18 if (m_selectrow != null) 19 { 20 if (m_selectrow == item) 21 return; 22 m_selectrow.setselect(false); 23 } 24 m_selectrow = item as idatagridviewrow; 25 m_selectrow.setselect(true); 26 if (itemclick != null) 27 { 28 itemclick(item, e); 29 } 30 if (this.panrow.controls.count > 0) 31 { 32 if (item.location.y < 0) 33 { 34 this.panrow.autoscrollposition = new point(0, math.abs(this.panrow.controls[this.panrow.controls.count - 1].location.y) + item.location.y); 35 } 36 else if (item.location.y + m_rowheight > this.panrow.height) 37 { 38 this.panrow.autoscrollposition = new point(0, math.abs(this.panrow.autoscrollposition.y) + item.location.y - this.panrow.height + m_rowheight); 39 } 40 } 41 } 42 finally 43 { 44 controlhelper.freezecontrol(this, false); 45 } 46 } 47 private void ucdatagridview_resize(object sender, eventargs e) 48 { 49 resetshowcount(); 50 reloadsource(); 51 } 52 #endregion
对外公开的函数
1 #region 公共函数 2 /// <summary> 3 /// 刷新数据 4 /// </summary> 5 public void reloadsource() 6 { 7 if (designmode) 8 { return; } 9 try 10 { 11 if (m_columns == null || m_columns.count <= 0) 12 return; 13 14 controlhelper.freezecontrol(this.panrow, true); 15 this.panrow.controls.clear(); 16 rows = new list<idatagridviewrow>(); 17 if (m_datasource != null) 18 { 19 int intindex = 0; 20 control lastitem = null; 21 22 int intsourcecount = 0; 23 if (m_datasource is datatable) 24 { 25 intsourcecount = (m_datasource as datatable).rows.count; 26 } 27 else if (typeof(ilist).isassignablefrom(m_datasource.gettype())) 28 { 29 intsourcecount = (m_datasource as ilist).count; 30 } 31 32 foreach (control item in this.panrow.controls) 33 { 34 35 36 if (intindex >= intsourcecount) 37 { 38 item.visible = false; 39 } 40 else 41 { 42 var row = (item as idatagridviewrow); 43 row.isshowcheckbox = m_isshowcheckbox; 44 if (m_datasource is datatable) 45 { 46 row.datasource = (m_datasource as datatable).rows[intindex]; 47 } 48 else 49 { 50 row.datasource = (m_datasource as ilist)[intindex]; 51 } 52 row.bindingcelldata(); 53 item.height = m_rowheight; 54 item.visible = true; 55 item.bringtofront(); 56 if (lastitem == null) 57 lastitem = item; 58 rows.add(row); 59 } 60 intindex++; 61 } 62 63 if (intindex < intsourcecount) 64 { 65 for (int i = intindex; i < intsourcecount; i++) 66 { 67 idatagridviewrow row = (idatagridviewrow)activator.createinstance(m_rowtype); 68 if (m_datasource is datatable) 69 { 70 row.datasource = (m_datasource as datatable).rows[i]; 71 } 72 else 73 { 74 row.datasource = (m_datasource as ilist)[i]; 75 } 76 row.columns = m_columns; 77 list<control> lstcells = new list<control>(); 78 row.isshowcheckbox = m_isshowcheckbox; 79 row.reloadcells(); 80 row.bindingcelldata(); 81 82 83 control rowcontrol = (row as control); 84 rowcontrol.height = m_rowheight; 85 this.panrow.controls.add(rowcontrol); 86 rowcontrol.dock = dockstyle.top; 87 row.cellclick += (a, b) => { setselectrow(rowcontrol, b); }; 88 row.checkboxchangeevent += (a, b) => { setselectrow(rowcontrol, b); }; 89 row.sourcechanged += rowsourcechanged; 90 rowcontrol.bringtofront(); 91 rows.add(row); 92 93 if (lastitem == null) 94 lastitem = rowcontrol; 95 } 96 } 97 if (lastitem != null && intsourcecount == m_showcount) 98 { 99 lastitem.height = this.panrow.height - (m_showcount - 1) * m_rowheight; 100 } 101 } 102 } 103 finally 104 { 105 controlhelper.freezecontrol(this.panrow, false); 106 } 107 } 108 109 110 /// <summary> 111 /// 快捷键 112 /// </summary> 113 /// <param name="msg"></param> 114 /// <param name="keydata"></param> 115 /// <returns></returns> 116 protected override bool processcmdkey(ref message msg, keys keydata) 117 { 118 if (keydata == keys.up) 119 { 120 previous(); 121 } 122 else if (keydata == keys.down) 123 { 124 next(); 125 } 126 else if (keydata == keys.home) 127 { 128 first(); 129 } 130 else if (keydata == keys.end) 131 { 132 end(); 133 } 134 return base.processcmdkey(ref msg, keydata); 135 } 136 /// <summary> 137 /// 选中第一个 138 /// </summary> 139 public void first() 140 { 141 if (rows == null || rows.count <= 0) 142 return; 143 control c = null; 144 c = (rows[0] as control); 145 setselectrow(c, new datagridvieweventargs() { rowindex = 0 }); 146 } 147 /// <summary> 148 /// 选中上一个 149 /// </summary> 150 public void previous() 151 { 152 if (rows == null || rows.count <= 0) 153 return; 154 control c = null; 155 156 int index = rows.indexof(m_selectrow); 157 if (index - 1 >= 0) 158 { 159 c = (rows[index - 1] as control); 160 setselectrow(c, new datagridvieweventargs() { rowindex = index - 1 }); 161 } 162 } 163 /// <summary> 164 /// 选中下一个 165 /// </summary> 166 public void next() 167 { 168 if (rows == null || rows.count <= 0) 169 return; 170 control c = null; 171 172 int index = rows.indexof(m_selectrow); 173 if (index + 1 < rows.count) 174 { 175 c = (rows[index + 1] as control); 176 setselectrow(c, new datagridvieweventargs() { rowindex = index + 1 }); 177 } 178 } 179 /// <summary> 180 /// 选中最后一个 181 /// </summary> 182 public void end() 183 { 184 if (rows == null || rows.count <= 0) 185 return; 186 control c = null; 187 c = (rows[rows.count - 1] as control); 188 setselectrow(c, new datagridvieweventargs() { rowindex = rows.count - 1 }); 189 } 190 191 #endregion
完整代码
1 // 版权所有 黄正辉 交流群:568015492 qq:623128629 2 // 文件名称:ucdatagridview.cs 3 // 创建日期:2019-08-15 15:59:25 4 // 功能描述:datagridview 5 // 项目地址:https://gitee.com/kwwwvagaa/net_winform_custom_control 6 using system; 7 using system.collections.generic; 8 using system.componentmodel; 9 using system.drawing; 10 using system.data; 11 using system.linq; 12 using system.text; 13 using system.windows.forms; 14 using system.collections; 15 16 namespace hzh_controls.controls 17 { 18 public partial class ucdatagridview : usercontrol 19 { 20 #region 属性 21 private font m_headfont = new font("微软雅黑", 12f); 22 /// <summary> 23 /// 标题字体 24 /// </summary> 25 [description("标题字体"), category("自定义")] 26 public font headfont 27 { 28 get { return m_headfont; } 29 set { m_headfont = value; } 30 } 31 private color m_headtextcolor = color.black; 32 /// <summary> 33 /// 标题字体颜色 34 /// </summary> 35 [description("标题文字颜色"), category("自定义")] 36 public color headtextcolor 37 { 38 get { return m_headtextcolor; } 39 set { m_headtextcolor = value; } 40 } 41 42 private bool m_isshowhead = true; 43 /// <summary> 44 /// 是否显示标题 45 /// </summary> 46 [description("是否显示标题"), category("自定义")] 47 public bool isshowhead 48 { 49 get { return m_isshowhead; } 50 set 51 { 52 m_isshowhead = value; 53 panhead.visible = value; 54 if (m_page != null) 55 { 56 resetshowcount(); 57 m_page.pagesize = m_showcount; 58 } 59 } 60 } 61 private int m_headheight = 40; 62 /// <summary> 63 /// 标题高度 64 /// </summary> 65 [description("标题高度"), category("自定义")] 66 public int headheight 67 { 68 get { return m_headheight; } 69 set 70 { 71 m_headheight = value; 72 panhead.height = value; 73 } 74 } 75 76 private bool m_isshowcheckbox = false; 77 /// <summary> 78 /// 是否显示复选框 79 /// </summary> 80 [description("是否显示选择框"), category("自定义")] 81 public bool isshowcheckbox 82 { 83 get { return m_isshowcheckbox; } 84 set 85 { 86 if (value != m_isshowcheckbox) 87 { 88 m_isshowcheckbox = value; 89 loadcolumns(); 90 } 91 } 92 } 93 94 private int m_rowheight = 40; 95 /// <summary> 96 /// 行高 97 /// </summary> 98 [description("数据行高"), category("自定义")] 99 public int rowheight 100 { 101 get { return m_rowheight; } 102 set { m_rowheight = value; } 103 } 104 105 private int m_showcount = 0; 106 /// <summary> 107 /// 108 /// </summary> 109 [description("可显示个数"), category("自定义")] 110 public int showcount 111 { 112 get { return m_showcount; } 113 private set 114 { 115 m_showcount = value; 116 if (m_page != null) 117 { 118 m_page.pagesize = value; 119 } 120 } 121 } 122 123 private list<datagridviewcolumnentity> m_columns; 124 /// <summary> 125 /// 列 126 /// </summary> 127 [description("列"), category("自定义")] 128 public list<datagridviewcolumnentity> columns 129 { 130 get { return m_columns; } 131 set 132 { 133 m_columns = value; 134 loadcolumns(); 135 } 136 } 137 138 private object m_datasource; 139 /// <summary> 140 /// 数据源,支持列表或table,如果使用翻页控件,请使用翻页控件的datasource 141 /// </summary> 142 [description("数据源,支持列表或table,如果使用翻页控件,请使用翻页控件的datasource"), category("自定义")] 143 public object datasource 144 { 145 get { return m_datasource; } 146 set 147 { 148 if (value == null) 149 return; 150 if (!(m_datasource is datatable) && (!typeof(ilist).isassignablefrom(value.gettype()))) 151 { 152 throw new exception("数据源不是有效的数据类型,请使用datatable或列表"); 153 } 154 155 m_datasource = value; 156 reloadsource(); 157 } 158 } 159 160 public list<idatagridviewrow> rows { get; private set; } 161 162 private type m_rowtype = typeof(ucdatagridviewrow); 163 /// <summary> 164 /// 行元素类型,默认ucdatagridviewitem 165 /// </summary> 166 [description("行控件类型,默认ucdatagridviewrow,如果不满足请自定义行控件实现接口idatagridviewrow"), category("自定义")] 167 public type rowtype 168 { 169 get { return m_rowtype; } 170 set 171 { 172 if (value == null) 173 return; 174 if (!typeof(idatagridviewrow).isassignablefrom(value) || !value.issubclassof(typeof(control))) 175 throw new exception("行控件没有实现idatagridviewrow接口"); 176 m_rowtype = value; 177 } 178 } 179 idatagridviewrow m_selectrow = null; 180 /// <summary> 181 /// 选中的节点 182 /// </summary> 183 [description("选中行"), category("自定义")] 184 public idatagridviewrow selectrow 185 { 186 get { return m_selectrow; } 187 private set { m_selectrow = value; } 188 } 189 190 191 /// <summary> 192 /// 选中的行,如果显示checkbox,则以checkbox选中为准 193 /// </summary> 194 [description("选中的行,如果显示checkbox,则以checkbox选中为准"), category("自定义")] 195 public list<idatagridviewrow> selectrows 196 { 197 get 198 { 199 if (m_isshowcheckbox) 200 { 201 return rows.findall(p => p.ischecked); 202 } 203 else 204 return new list<idatagridviewrow>() { m_selectrow }; 205 } 206 } 207 208 209 private ucpagercontrolbase m_page = null; 210 /// <summary> 211 /// 翻页控件 212 /// </summary> 213 [description("翻页控件,如果ucpagercontrol不满足你的需求,请自定义翻页控件并继承ucpagercontrolbase"), category("自定义")] 214 public ucpagercontrolbase page 215 { 216 get { return m_page; } 217 set 218 { 219 m_page = value; 220 if (value != null) 221 { 222 if (!typeof(ipagecontrol).isassignablefrom(value.gettype()) || !value.gettype().issubclassof(typeof(ucpagercontrolbase))) 223 throw new exception("翻页控件没有继承ucpagercontrolbase"); 224 panpage.visible = value != null; 225 m_page.showsourcechanged += page_showsourcechanged; 226 m_page.dock = dockstyle.fill; 227 this.panpage.controls.clear(); 228 this.panpage.controls.add(m_page); 229 resetshowcount(); 230 m_page.pagesize = showcount; 231 this.datasource = m_page.getcurrentsource(); 232 } 233 else 234 { 235 m_page = null; 236 } 237 } 238 } 239 240 void page_showsourcechanged(object currentsource) 241 { 242 this.datasource = currentsource; 243 } 244 245 #region 事件 246 [description("选中标题选择框事件"), category("自定义")] 247 public eventhandler headcheckboxchangeevent; 248 [description("标题点击事件"), category("自定义")] 249 public eventhandler headcolumnclickevent; 250 [description("项点击事件"), category("自定义")] 251 public event datagridvieweventhandler itemclick; 252 [description("数据源改变事件"), category("自定义")] 253 public event datagridvieweventhandler sourcechanged; 254 #endregion 255 #endregion 256 257 public ucdatagridview() 258 { 259 initializecomponent(); 260 } 261 262 #region 私有方法 263 #region 加载column 264 /// <summary> 265 /// 功能描述:加载column 266 /// 作 者:hzh 267 /// 创建日期:2019-08-08 17:51:50 268 /// 任务编号:pos 269 /// </summary> 270 private void loadcolumns() 271 { 272 try 273 { 274 if (designmode) 275 { return; } 276 277 controlhelper.freezecontrol(this.panhead, true); 278 this.pancolumns.controls.clear(); 279 this.pancolumns.columnstyles.clear(); 280 281 if (m_columns != null && m_columns.count() > 0) 282 { 283 int intcolumnscount = m_columns.count(); 284 if (m_isshowcheckbox) 285 { 286 intcolumnscount++; 287 } 288 this.pancolumns.columncount = intcolumnscount; 289 for (int i = 0; i < intcolumnscount; i++) 290 { 291 control c = null; 292 if (i == 0 && m_isshowcheckbox) 293 { 294 this.pancolumns.columnstyles.add(new system.windows.forms.columnstyle(sizetype.absolute, 30f)); 295 296 uccheckbox box = new uccheckbox(); 297 box.textvalue = ""; 298 box.size = new size(30, 30); 299 box.checkedchangeevent += (a, b) => 300 { 301 rows.foreach(p => p.ischecked = box.checked); 302 if (headcheckboxchangeevent != null) 303 { 304 headcheckboxchangeevent(a, b); 305 } 306 }; 307 c = box; 308 } 309 else 310 { 311 var item = m_columns[i - (m_isshowcheckbox ? 1 : 0)]; 312 this.pancolumns.columnstyles.add(new system.windows.forms.columnstyle(item.widthtype, item.width)); 313 label lbl = new label(); 314 lbl.name = "dgvcolumns_" + i; 315 lbl.text = item.headtext; 316 lbl.font = m_headfont; 317 lbl.forecolor = m_headtextcolor; 318 lbl.textalign = contentalignment.middlecenter; 319 lbl.autosize = false; 320 lbl.dock = dockstyle.fill; 321 lbl.mousedown += (a, b) => 322 { 323 if (headcolumnclickevent != null) 324 { 325 headcolumnclickevent(a, b); 326 } 327 }; 328 c = lbl; 329 } 330 this.pancolumns.controls.add(c, i, 0); 331 } 332 333 } 334 } 335 finally 336 { 337 controlhelper.freezecontrol(this.panhead, false); 338 } 339 } 340 #endregion 341 342 /// <summary> 343 /// 功能描述:获取显示个数 344 /// 作 者:hzh 345 /// 创建日期:2019-03-05 10:02:58 346 /// 任务编号:pos 347 /// </summary> 348 /// <returns>返回值</returns> 349 private void resetshowcount() 350 { 351 if (designmode) 352 { return; } 353 showcount = this.panrow.height / (m_rowheight); 354 int intcha = this.panrow.height % (m_rowheight); 355 m_rowheight += intcha / showcount; 356 } 357 #endregion 358 359 #region 公共函数 360 /// <summary> 361 /// 刷新数据 362 /// </summary> 363 public void reloadsource() 364 { 365 if (designmode) 366 { return; } 367 try 368 { 369 if (m_columns == null || m_columns.count <= 0) 370 return; 371 372 controlhelper.freezecontrol(this.panrow, true); 373 this.panrow.controls.clear(); 374 rows = new list<idatagridviewrow>(); 375 if (m_datasource != null) 376 { 377 int intindex = 0; 378 control lastitem = null; 379 380 int intsourcecount = 0; 381 if (m_datasource is datatable) 382 { 383 intsourcecount = (m_datasource as datatable).rows.count; 384 } 385 else if (typeof(ilist).isassignablefrom(m_datasource.gettype())) 386 { 387 intsourcecount = (m_datasource as ilist).count; 388 } 389 390 foreach (control item in this.panrow.controls) 391 { 392 393 394 if (intindex >= intsourcecount) 395 { 396 item.visible = false; 397 } 398 else 399 { 400 var row = (item as idatagridviewrow); 401 row.isshowcheckbox = m_isshowcheckbox; 402 if (m_datasource is datatable) 403 { 404 row.datasource = (m_datasource as datatable).rows[intindex]; 405 } 406 else 407 { 408 row.datasource = (m_datasource as ilist)[intindex]; 409 } 410 row.bindingcelldata(); 411 item.height = m_rowheight; 412 item.visible = true; 413 item.bringtofront(); 414 if (lastitem == null) 415 lastitem = item; 416 rows.add(row); 417 } 418 intindex++; 419 } 420 421 if (intindex < intsourcecount) 422 { 423 for (int i = intindex; i < intsourcecount; i++) 424 { 425 idatagridviewrow row = (idatagridviewrow)activator.createinstance(m_rowtype); 426 if (m_datasource is datatable) 427 { 428 row.datasource = (m_datasource as datatable).rows[i]; 429 } 430 else 431 { 432 row.datasource = (m_datasource as ilist)[i]; 433 } 434 row.columns = m_columns; 435 list<control> lstcells = new list<control>(); 436 row.isshowcheckbox = m_isshowcheckbox; 437 row.reloadcells(); 438 row.bindingcelldata(); 439 440 441 control rowcontrol = (row as control); 442 rowcontrol.height = m_rowheight; 443 this.panrow.controls.add(rowcontrol); 444 rowcontrol.dock = dockstyle.top; 445 row.cellclick += (a, b) => { setselectrow(rowcontrol, b); }; 446 row.checkboxchangeevent += (a, b) => { setselectrow(rowcontrol, b); }; 447 row.sourcechanged += rowsourcechanged; 448 rowcontrol.bringtofront(); 449 rows.add(row); 450 451 if (lastitem == null) 452 lastitem = rowcontrol; 453 } 454 } 455 if (lastitem != null && intsourcecount == m_showcount) 456 { 457 lastitem.height = this.panrow.height - (m_showcount - 1) * m_rowheight; 458 } 459 } 460 } 461 finally 462 { 463 controlhelper.freezecontrol(this.panrow, false); 464 } 465 } 466 467 468 /// <summary> 469 /// 快捷键 470 /// </summary> 471 /// <param name="msg"></param> 472 /// <param name="keydata"></param> 473 /// <returns></returns> 474 protected override bool processcmdkey(ref message msg, keys keydata) 475 { 476 if (keydata == keys.up) 477 { 478 previous(); 479 } 480 else if (keydata == keys.down) 481 { 482 next(); 483 } 484 else if (keydata == keys.home) 485 { 486 first(); 487 } 488 else if (keydata == keys.end) 489 { 490 end(); 491 } 492 return base.processcmdkey(ref msg, keydata); 493 } 494 /// <summary> 495 /// 选中第一个 496 /// </summary> 497 public void first() 498 { 499 if (rows == null || rows.count <= 0) 500 return; 501 control c = null; 502 c = (rows[0] as control); 503 setselectrow(c, new datagridvieweventargs() { rowindex = 0 }); 504 } 505 /// <summary> 506 /// 选中上一个 507 /// </summary> 508 public void previous() 509 { 510 if (rows == null || rows.count <= 0) 511 return; 512 control c = null; 513 514 int index = rows.indexof(m_selectrow); 515 if (index - 1 >= 0) 516 { 517 c = (rows[index - 1] as control); 518 setselectrow(c, new datagridvieweventargs() { rowindex = index - 1 }); 519 } 520 } 521 /// <summary> 522 /// 选中下一个 523 /// </summary> 524 public void next() 525 { 526 if (rows == null || rows.count <= 0) 527 return; 528 control c = null; 529 530 int index = rows.indexof(m_selectrow); 531 if (index + 1 < rows.count) 532 { 533 c = (rows[index + 1] as control); 534 setselectrow(c, new datagridvieweventargs() { rowindex = index + 1 }); 535 } 536 } 537 /// <summary> 538 /// 选中最后一个 539 /// </summary> 540 public void end() 541 { 542 if (rows == null || rows.count <= 0) 543 return; 544 control c = null; 545 c = (rows[rows.count - 1] as control); 546 setselectrow(c, new datagridvieweventargs() { rowindex = rows.count - 1 }); 547 } 548 549 #endregion 550 551 #region 事件 552 void rowsourcechanged(object sender, datagridvieweventargs e) 553 { 554 if (sourcechanged != null) 555 sourcechanged(sender, e); 556 } 557 private void setselectrow(control item, datagridvieweventargs e) 558 { 559 try 560 { 561 controlhelper.freezecontrol(this, true); 562 if (item == null) 563 return; 564 if (item.visible == false) 565 return; 566 this.findform().activecontrol = this; 567 this.findform().activecontrol = item; 568 if (m_selectrow != null) 569 { 570 if (m_selectrow == item) 571 return; 572 m_selectrow.setselect(false); 573 } 574 m_selectrow = item as idatagridviewrow; 575 m_selectrow.setselect(true); 576 if (itemclick != null) 577 { 578 itemclick(item, e); 579 } 580 if (this.panrow.controls.count > 0) 581 { 582 if (item.location.y < 0) 583 { 584 this.panrow.autoscrollposition = new point(0, math.abs(this.panrow.controls[this.panrow.controls.count - 1].location.y) + item.location.y); 585 } 586 else if (item.location.y + m_rowheight > this.panrow.height) 587 { 588 this.panrow.autoscrollposition = new point(0, math.abs(this.panrow.autoscrollposition.y) + item.location.y - this.panrow.height + m_rowheight); 589 } 590 } 591 } 592 finally 593 { 594 controlhelper.freezecontrol(this, false); 595 } 596 } 597 private void ucdatagridview_resize(object sender, eventargs e) 598 { 599 resetshowcount(); 600 reloadsource(); 601 } 602 #endregion 603 } 604 }
1 namespace hzh_controls.controls 2 { 3 partial class ucdatagridview 4 { 5 /// <summary> 6 /// 必需的设计器变量。 7 /// </summary> 8 private system.componentmodel.icontainer components = null; 9 10 /// <summary> 11 /// 清理所有正在使用的资源。 12 /// </summary> 13 /// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param> 14 protected override void dispose(bool disposing) 15 { 16 if (disposing && (components != null)) 17 { 18 components.dispose(); 19 } 20 base.dispose(disposing); 21 } 22 23 #region 组件设计器生成的代码 24 25 /// <summary> 26 /// 设计器支持所需的方法 - 不要 27 /// 使用代码编辑器修改此方法的内容。 28 /// </summary> 29 private void initializecomponent() 30 { 31 this.panhead = new system.windows.forms.panel(); 32 this.pancolumns = new system.windows.forms.tablelayoutpanel(); 33 this.ucsplitline_h1 = new hzh_controls.controls.ucsplitline_h(); 34 this.panrow = new system.windows.forms.panel(); 35 this.panpage = new system.windows.forms.panel(); 36 this.panhead.suspendlayout(); 37 this.suspendlayout(); 38 // 39 // panhead 40 // 41 this.panhead.controls.add(this.pancolumns); 42 this.panhead.controls.add(this.ucsplitline_h1); 43 this.panhead.dock = system.windows.forms.dockstyle.top; 44 this.panhead.location = new system.drawing.point(0, 0); 45 this.panhead.name = "panhead"; 46 this.panhead.size = new system.drawing.size(1061, 40); 47 this.panhead.tabindex = 0; 48 // 49 // pancolumns 50 // 51 this.pancolumns.columncount = 1; 52 this.pancolumns.columnstyles.add(new system.windows.forms.columnstyle(system.windows.forms.sizetype.percent, 100f)); 53 this.pancolumns.dock = system.windows.forms.dockstyle.fill; 54 this.pancolumns.location = new system.drawing.point(0, 0); 55 this.pancolumns.name = "pancolumns"; 56 this.pancolumns.rowcount = 1; 57 this.pancolumns.rowstyles.add(new system.windows.forms.rowstyle(system.windows.forms.sizetype.percent, 100f)); 58 this.pancolumns.rowstyles.add(new system.windows.forms.rowstyle(system.windows.forms.sizetype.absolute, 20f)); 59 this.pancolumns.size = new system.drawing.size(1061, 39); 60 this.pancolumns.tabindex = 1; 61 // 62 // ucsplitline_h1 63 // 64 this.ucsplitline_h1.backcolor = system.drawing.color.fromargb(((int)(((byte)(232)))), ((int)(((byte)(232)))), ((int)(((byte)(232))))); 65 this.ucsplitline_h1.dock = system.windows.forms.dockstyle.bottom; 66 this.ucsplitline_h1.location = new system.drawing.point(0, 39); 67 this.ucsplitline_h1.name = "ucsplitline_h1"; 68 this.ucsplitline_h1.size = new system.drawing.size(1061, 1); 69 this.ucsplitline_h1.tabindex = 0; 70 this.ucsplitline_h1.tabstop = false; 71 // 72 // panrow 73 // 74 this.panrow.autoscroll = true; 75 this.panrow.dock = system.windows.forms.dockstyle.fill; 76 this.panrow.location = new system.drawing.point(0, 40); 77 this.panrow.name = "panrow"; 78 this.panrow.size = new system.drawing.size(1061, 475); 79 this.panrow.tabindex = 1; 80 // 81 // panpage 82 // 83 this.panpage.dock = system.windows.forms.dockstyle.bottom; 84 this.panpage.location = new system.drawing.point(0, 515); 85 this.panpage.name = "panpage"; 86 this.panpage.size = new system.drawing.size(1061, 50); 87 this.panpage.tabindex = 0; 88 this.panpage.visible = false; 89 // 90 // ucdatagridview 91 // 92 this.autoscalemode = system.windows.forms.autoscalemode.none; 93 this.backcolor = system.drawing.color.white; 94 this.controls.add(this.panrow); 95 this.controls.add(this.panpage); 96 this.controls.add(this.panhead); 97 this.name = "ucdatagridview"; 98 this.size = new system.drawing.size(1061, 565); 99 this.resize += new system.eventhandler(this.ucdatagridview_resize); 100 this.panhead.resumelayout(false); 101 this.resumelayout(false); 102 103 } 104 105 #endregion 106 107 private system.windows.forms.panel panhead; 108 private system.windows.forms.tablelayoutpanel pancolumns; 109 private ucsplitline_h ucsplitline_h1; 110 private system.windows.forms.panel panrow; 111 private system.windows.forms.panel panpage; 112 113 } 114 }
如果你仔细看,你会发现行我用了类型进行传入,当你需要更丰富的行内容的时候,可以自定义行控件,然后通过rowtype属性传入
分页控件我使用了分页控件基类ucpagercontrolbase,这样做的好处就是你同样可以扩展分页控件
用处及效果
调用示例
1 list<datagridviewcolumnentity> lstculumns = new list<datagridviewcolumnentity>(); 2 lstculumns.add(new datagridviewcolumnentity() { datafield = "id", headtext = "编号", width = 70, widthtype = sizetype.absolute }); 3 lstculumns.add(new datagridviewcolumnentity() { datafield = "name", headtext = "姓名", width = 50, widthtype = sizetype.percent }); 4 lstculumns.add(new datagridviewcolumnentity() { datafield = "age", headtext = "年龄", width = 50, widthtype = sizetype.percent }); 5 lstculumns.add(new datagridviewcolumnentity() { datafield = "birthday", headtext = "生日", width = 50, widthtype = sizetype.percent, format = (a) => { return ((datetime)a).tostring("yyyy-mm-dd"); } }); 6 lstculumns.add(new datagridviewcolumnentity() { datafield = "sex", headtext = "性别", width = 50, widthtype = sizetype.percent, format = (a) => { return ((int)a) == 0 ? "女" : "男"; } }); 7 this.ucdatagridview1.columns = lstculumns; 8 this.ucdatagridview1.isshowcheckbox = true; 9 list<object> lstsource = new list<object>(); 10 for (int i = 0; i < 200; i++) 11 { 12 testmodel model = new testmodel() 13 { 14 id = i.tostring(), 15 age = 3 * i, 16 name = "姓名——" + i, 17 birthday = datetime.now.addyears(-10), 18 sex = i % 2 19 }; 20 lstsource.add(model); 21 } 22 23 var page = new ucpagercontrol2(); 24 page.datasource = lstsource; 25 this.ucdatagridview1.page = page; 26 this.ucdatagridview1.first();
如果使用分页控件,则将数据源指定给分页控件,否则直接指定给表格控件数据源
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