DevExpress中GridControl列转义的实现方法
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2024-02-18 12:11:28
在一些项目的实际开发过程中,我们有时候需要对gridcontrol中列值进行转义,譬如1转义成“完成”等等,一般在诸如customcolumndisplaytext事件中能...
在一些项目的实际开发过程中,我们有时候需要对gridcontrol中列值进行转义,譬如1转义成“完成”等等,一般在诸如customcolumndisplaytext事件中能够轻松完成,为了提高代码复用性,所以需要对customcolumndisplaytext进行包装。具体方法如下:
主要功能代码如下:
/// <summary> /// customcolumndisplaytext helper /// </summary> /// <param name="girdview">gridview</param> /// <param name="fieldnamehandler">委托</param> /// <param name="dispalytexthandler">展现文字</param> /// <param name="e">customcolumndisplaytexteventargs</param> public static void cuscoldisplaytexthelper(this gridview girdview, predicate<string> fieldnamehandler, func<object, string> dispalytexthandler, customcolumndisplaytexteventargs e) { if (fieldnamehandler(e.column.fieldname)) { e.displaytext = dispalytexthandler(e.value); } } /// <summary> /// customcolumndisplaytext helper /// </summary> /// <param name="girdview">gridview</param> /// <param name="valuehandler">委托</param> /// <param name="dispalytexthandler">委托</param> /// <param name="e">customcolumndisplaytexteventargs</param> public static void cuscoldisplaytexthelper(this gridview girdview, func<object, type, bool> valuehandler, func<object, string> dispalytexthandler, customcolumndisplaytexteventargs e) { if (valuehandler(e.value, e.value.gettype())) { e.displaytext = dispalytexthandler(e.value); } } /// <summary> ///customcolumndisplaytext helper /// </summary> /// <param name="girdview">gridview</param> /// <param name="valuehandler">委托</param> /// <param name="curdispalytext">展现文字</param> /// <param name="e">customcolumndisplaytexteventargs</param> public static void cuscoldisplaytexthelper(this gridview girdview, func<object, type, bool> valuehandler, string curdispalytext, customcolumndisplaytexteventargs e) { if (valuehandler(e.value, e.value.gettype())) { e.displaytext = curdispalytext; } }
代码使用方法如下:
private void gvlampconfig_customcolumndisplaytext(object sender, customcolumndisplaytexteventargs e) { gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lampvidirection"), value => value.toint(1) == 1 ? "正向" : "反向", e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lampworkstatus"), tranlampworktype, e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("ctuchno"), value => string.format("第{0}回路", value), e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lampphase"), tranlampphase, e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lampdevicetype"), tranlampdevicetype, e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lamppower"), value => string.format("{0} w", value), e); gvlampconfig.cuscoldisplaytexthelper(name => name.equals("lampintensity"), value => string.format("{0} %", value), e); gvlampconfig.cuscoldisplaytexthelper((value, type) => value.toint(-1) == -1 && type == typeof(int32), "不修改", e); } private string tranlampdevicetype(object type) { int _type = type.toint(-1); if (_type == 1) return "钠灯"; if (_type == 2) return "led灯"; if (_type == 3) return "无极灯"; return "--"; } private string tranlampphase(object type) { int _type = type.toint(-1); if (_type == 0) return "未知"; if (_type == 1) return "a相"; if (_type == 2) return "b相"; if (_type == 3) return "c相"; return "--"; } private string tranlampworktype(object type) { int _type = type.toint(-1); if (_type == 0) return "关闭但不删除"; if (_type == 1) return "启用"; if (_type == 2) return "删除"; return "--"; }
代码运行效果如下所示:
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