jQuery Easyui Treegrid实现显示checkbox功能

下面通过本文给大家介绍下图中的treegrid如何实现？

要求：动态加载；级联勾选；通关类型判断显示包库/还是镜像（列有所不同，镜像共4列），勾选一个复选框，后面的复选框变为不可勾选状态。

下面是具体代码：

1，初始化treegrid，（其中有几个type列，是由后台人员提供的字段名，虽然我也不想弄一堆type...汗）

var root = 20543;
   //初始化产品树
   function initproducttreegrid(rootid) {
    var type = '<%=controler.producttype%>';
   var ishowpack = true;
   var ishowmirro = true;
   //1,包库；2，镜像
   if (type == '1') {
    ishowpack = false;
    ishowmirro = true;
   } else {
    ishowpack = true;
    ishowmirro = false;
   };
   $('#tt_product').treegrid({
    url: '../handlers/contract_producthandler.ashx',
    queryparams: {
     handlertype: "initproducttreegrid",
     contractid: $('#contractid').val(),
     catalogid: rootid,
     pindex: $('#pindex').val()
    },
    idfield: 'id',
    width: 930,
    treefield: 'catalogname',
    fitcolumns: true, //宽度自适应窗口
    rownumbers: false, //是否加行号
    singleselect: true,
    scrollbarsize: 0,  //去除滚动条，否则右边最后一列会自动多处一块
    columns: [[
     { title: '产品列表', field: 'catalogname', width: 210 },
     { title: '产品id', field: 'catalogid', hidden: true },
     { title: '父产品id', field: 'parentid', hidden: true },
     { title: '父产品名称', field: 'parentname', hidden: true },
     { title: '产品类型', field: 'producttype', hidden: true },
     { title: '是否为子节点', field: 'isleaf', hidden: true }, //备注：(1,是;0,否)
     { title: '是否为父节点', field: 'isparent', hidden: true },
     { title: 'ischecked', field: 'ischeck', hidden: true },
     { title: 'currentyearprices', field: 'type1', hidden: true },
     { title: 'mirrorcurrentyearprices', field: 'type3', hidden: true },
     { title: 'mirrorearlyprices', field: 'type4', hidden: true },
     { title: 'mirrorprevious3yearprices', field: 'type5', hidden: true },
     {
      field: 'currentyearprices', title: '当前价格', width: 200, hidden: ishowpack,
      formatter: function (value, rec, index) {
       var d = '<input type="checkbox" name="currentyearprices" catalogid="' + rec.catalogid + '" ' + (rec.type1 == 'true' ? 'checked="checked"' : '') + ' id="currentyearprices' + rec.catalogid + '" onclick="showproducttree(this,\'currentyearprices\',' + rec.catalogid + ',' + rec.isparent + ');" parent="currentyearprices' + rec.parentid + '" isparent="' + rec.isparent + '" value="' + value + '" />  ' + (value != 0 ? value.substr(0, value.length - 2) : '0.00');

       return d;
      }
     },
     {
      field: 'mirrorcurrentyearprices', title: '当前价格', width: 200, hidden: ishowmirro,
      formatter: function (value, rec, index) {
       var d = '<input type="checkbox" name="mirrorcurrentyearprices" catalogid="' + rec.catalogid + '" ' + (rec.type3 == 'true' ? 'checked="checked"' : '') + ' id="mirrorcurrentyearprices' + rec.catalogid + '" onclick="showproducttree(this,\'mirrorcurrentyearprices\',' + rec.catalogid + ',' + rec.isparent + ');" parent="mirrorcurrentyearprices' + rec.parentid + '" isparent="' + rec.isparent + '" value="' + value + '" />  ' + value.substr(0, value.length - 2);
       //var d = '<span name="currentyearmirrorprice" id="currentyearmirrorprice' + rec.catalogid + '" class="tree-checkbox tree-checkbox0">' + value + '</span>';
       return d;
      }
     },
     {
      field: 'mirrorprevious3yearprices', title: '前阶段价格', width: 200, hidden: ishowmirro,
      formatter: function (value, rec, index) {
       var d = '<input type="checkbox" name="mirrorprevious3yearprices" catalogid="' + rec.catalogid + '" ' + (rec.type5 == 'true' ? 'checked="checked"' : '') + ' id="mirrorprevious3yearprices' + rec.catalogid + '" onclick="showproducttree(this,\'mirrorprevious3yearprices\',' + rec.catalogid + ',' + rec.isparent + ');" parent="mirrorprevious3yearprices' + rec.parentid + '" isparent="' + rec.isparent + '" value="' + value + '" />  ' + value.substr(0, value.length - 2);
       return d;
      }
     },
     {
      field: 'mirrorearlyprices', title: '早期价格', width: 200, hidden: ishowmirro,
      formatter: function (value, rec, index) {
       var d = '<input type="checkbox" name="mirrorearlyprices" catalogid="' + rec.catalogid + '" ' + (rec.type4 == 'true' ? 'checked="checked"' : '') + ' id="mirrorearlyprices' + rec.catalogid + '" onclick="showproducttree(this,\'mirrorearlyprices\',' + rec.catalogid + ',' + rec.isparent + ');" parent="mirrorearlyprices' + rec.parentid + '" isparent="' + rec.isparent + '" value="' + value + '" />  ' + value.substr(0, value.length - 2);
       return d;
      }
     },
     {
      field: 'type0', title: '是否赠送', width: 200,
      formatter: function (value, rec, index) {
       //alert(rec.ispresent);
       var d = '<input type="checkbox" name="ispresent" catalogid="' + rec.catalogid + '" ' + (rec.type0 == 'true' ? 'checked="checked"' : '') + ' id="ispresent' + rec.catalogid + '" onclick="showproducttree(this,\'ispresent\',' + rec.catalogid + ',' + rec.isparent + ');" parent="ispresent' + rec.parentid + '" isparent="' + rec.isparent + '" value="0" />  ';
       return d;
      }
     }
    ]],
    loadfilter: function (data, parentid) {
     //逐层加载
     function setdata() {
      var todo = [];
      for (var i = 0; i < data.length; i++) {
       todo.push(data[i]);
      }
      while (todo.length) {
       var node = todo.shift();
       if (node.children) {
        node.state = 'closed';
        node.children1 = node.children;
        node.children = undefined;
        todo = todo.concat(node.children1);
       }
      }
     }
     setdata(data);
     var tg = $(this);
     var opts = tg.treegrid('options');
     opts.onbeforeexpand = function (row) {
      if (row.children1) {
       tg.treegrid('append', {
        parent: row[opts.idfield],
        data: row.children1
       });
       row.children1 = undefined;
       tg.treegrid('expand', row[opts.idfield]);
      }
      return row.children1 == undefined;
     };
     return data;
    },
    onloadsuccess: function (row, data) {
     //alert(data[0].catalogid)
     relativetreegridcheck();
    }
   });
  };

2，onloadsuccess中的relativetreegridcheck()级联方法

var parentcid;
  var ispid;
  var tempid;
  //父节点选中关联子节点选中
  function relativetreegridcheck() {
   var rows = $('#addproducttbl').find('.datagrid-view2 .datagrid-body .datagrid-btable tr');
   for (var i = 0; i < rows.length; i++) {
    if ($(rows).eq(i).attr('node-id') != undefined) {
     parentcid = "";
     ispid = -1;
     tempid = "";
     catalogid = $(rows).eq(i).attr('node-id');
     //alert(catalogid);
     var cols = $(rows).eq(i).find('td');
     var fields = '';
     for (var j = 0; j < cols.length; j++) {
      fields = $(cols).eq(j).attr('field');
      //alert('fields:' + fields);
      switch (fields) {
       case 'currentyearprices':
       case 'mirrorcurrentyearprices':
       case 'mirrorprevious3yearprices':
       case 'mirrorearlyprices':
       case 'type0':
        if ($(cols).eq(j).find('div input:checked').length > 0) {
         parentcid = $(cols).eq(j).parent().find("td[field='catalogid']").find('div').html();
         ispid = $(cols).eq(j).parent().find("td[field='isparent']").find('div').html();
         contractproducttype = $(cols).eq(j).find('div input').attr('name');
         if (ispid == '1') {
          //获取checkbox对象
          var obj = $(cols).eq(j).find('div input:checkbox');
          //如果父节点选中，自己点也连带选中
          showproducttree(obj, contractproducttype, parentcid, ispid)
         }
        }
        break;
      }
     }
    }
   }
  }
function showproducttree(obj, catalogtype, id, isparent) {
   //alert(id.indexof('2'));
   if (isparent == 1) {
    //当前节点下包库子节点
    //alert('$(obj).attr(checked)' + $(obj).attr('checked'));
    var state = $(obj).attr('checked') == undefined ? false : true;
    //alert('state:'+state+' id:'+id);
    //找出子节点
    var nodes = $('input[name="' + catalogtype + '"][parent="' + catalogtype + id + '"]');
    nodes.each(function () {
     //alert('$(this).attr(checked):' + $(this).attr('checked'));
     var curobjstate = $(this).attr('checked') == undefined ? false : true;
     disabledotherscatalogtype($(this), state, catalogtype)
     //alert('curobjstate:' + curobjstate + ' state:' + state + ' id:' + id + ' isparent: ' + $(this).attr('isparent'));
     if (curobjstate == state && $(this).attr('isparent') == '0') {
      //alert('leaf');
      //如果当前节点的选中状态和父节点不同，并且当前节点不是父节点
      $(this).attr('checked', state);
      $(this).prop('checked', state);
     } else {
      //alert('$(this).attr(catalogid)' + $(this).attr('catalogid') + '---$(this).attr(isparent)' + $(this).attr('isparent'));
      $(this).attr('checked', state);
      $(this).prop('checked', state);
      showproducttree($(this), catalogtype, $(this).attr('catalogid'), $(this).attr('isparent'))
     }
     if (state) {
      $(this).removeattr('disabled');
     }
    });
    $(obj).prop('checked', state);
    disabledotherscatalogtype($(obj), state, catalogtype)
   } else {
    var state = $(obj).attr('checked') == undefined ? false : true;
    //alert(state);
    //alert(catalogtype);
    disabledotherscatalogtype($(obj), state, catalogtype)
    updateparentnodecheckstate($(obj), state, catalogtype)
   }
  }
  //修改其他产品类型的checkbox的只读状态
  function disabledotherscatalogtype(obj, state, catalogtype) {
   $('input[catalogid="' + $(obj).attr('catalogid') + '"]').each(function () {
    if ($(this).attr('name') != catalogtype) {
     if (state) {
      $(this).attr('disabled', 'disabled');
     } else {
      $(this).removeattr('disabled');
     }
     $(this).attr('checked', false).prop('checked', false);
    }
   });
  }
  //查找上一层节点,修改其状态
  function updateparentnodecheckstate(obj, state, catalogtype) {
   var pid = $(obj).attr('parent');
   //如果父节点是根节点，则不再执行
   if (pid == catalogtype + root || $('#' + pid).length == 0) return;
   var parent = $('#' + pid);
   if (!state) {
    //取消父节点的选中状态
    parent.attr('checked', false)
    parent.prop('checked', false)
   } else {
    //alert('pid:'+pid+'---'+$('input[parent="' + pid + '"]:checked').length+'------'+$('input[parent="' + pid + '"]').length);
    //alert('checkedlen:' + $('input[parent="' + pid + '"]:checked').length + ' len:' + $('input[parent="' + pid + '"]').length);
    //子节点全部选中
    if ($('input[parent="' + pid + '"]:checked').length == $('input[parent="' + pid + '"]').length) {
     parent.attr('checked', true);
     parent.prop('checked', true);
    }
   }
   //修改其他产品类型的checkbox的只读状态
   disabledotherscatalogtype(parent, state, catalogtype)
   //继续查找上一层节点
   updateparentnodecheckstate(parent, state, catalogtype)
  }

3，由于是拼接比较繁杂，在此顺便再说一下传参代码

//新增产品单击操作处理
  function subaddproduct() { 5    var strjson = '';
   var selectedvalued = $('#cbo_selfirstcombbox').combobox('getvalue');
   //下拉框选中的value
   selectedvalued = selectedvalued == '' ? '20544' : selectedvalued;
   //
   var ids = ''; 
   var rows = $('#addproducttbl').find('.datagrid-view2 .datagrid-body .datagrid-btable tr');
   strjson += "[";
   for (var i = 0; i < rows.length; i++) {
    catalogid = -1;
    catalogname = '';
    productfather = -1;
    contractproducttype = '';
    quoteprice = -1;
    isfather = -1;
    productfathername = '';
    if ($(rows).eq(i).attr('node-id') != undefined) {
     catalogid = $(rows).eq(i).attr('node-id');
     //alert(catalogid);
     var cols = $(rows).eq(i).find('td');
     var fields = '';
     for (var j = 0; j < cols.length; j++) {
      fields = $(cols).eq(j).attr('field');
      //alert('fields:' + fields);
      switch (fields) {
       case 'catalogname':
        $(cols).eq(j).find('div span').each(function (index) {
         if ($(cols).eq(j).find('div span').eq(index).hasclass('tree-title')) {
          catalogname = $(cols).eq(j).find('div span').eq(index).html();
         }
        });
        //alert(catalogname);
        break;
       case 'parentid':
        productfather = $(cols).eq(j).find('div').html();
        break;
       case 'ischeck':
        //原树选中节点id的获取(不包含修改的id节点)，此步骤目的是为了配合后台方法，作用是先删除当前版本下所有树选中的节点，再获取页面中修改后的
        //节点，进行更新操作
        var oldcheck = $(cols).eq(j).find('div').html();
        if (oldcheck == 'true') {
         var cid = $(cols).eq(j).parent().find("td[field='catalogid']").find('div').html();
         ids += cid + ',';
         //alert(ids)
        }
        break;
       case 'currentyearprices':
       case 'mirrorcurrentyearprices':
       case 'mirrorprevious3yearprices':
       case 'mirrorearlyprices':
       case 'type0':
        if ($(cols).eq(j).find('div input:checked').length > 0) {
         isfather = $(cols).eq(j).parent().find("td[field='isparent']").find('div').html();
         productfathername = $(cols).eq(j).parent().find("td[field='parentname']").find('div').html();
         contractproducttype = $(cols).eq(j).find('div input').attr('name');
         if (contractproducttype == 'ispresent') {
          var type = '<%=controler.producttype%>';
           contractproducttype = type == '1' ? 'currentyearprices' : 'mirrorcurrentyearprices'; //如果类型为镜像，则默认为镜像当年
          //alert($(cols).eq(j).parent().find("td[field='" + contractproducttype + "']").find('div input').val());
          //quoteprice = 0;
           quoteprice = $(cols).eq(j).parent().find("td[field='" + contractproducttype + "']").find('div input').val();
           ispresent = 1;
          } else {
           quoteprice = $(cols).eq(j).find('div input').val();
           ispresent = 0;
          }
         //alert('name:' + $(cols).eq(j).find('div input').attr('name') + ' value:' + $(cols).eq(j).find('div input').val());
         }
         break;
       }
      }
     //alert('catalogid:' + catalogid + '--catalogname:' + catalogname + '--productfather:' + productfather + '--contractproducttype:' + contractproducttype + '--quoteprice:' + quoteprice);
      if (catalogid != -1 && catalogname != '' && productfather != -1 && contractproducttype != '' && quoteprice != -1 && productfathername != '') {
       strjson += "{\"productid\":\"" + catalogid + "\",\"contractproducttype\":\"" + contractproducttype + "\",\"productfather\":\"" + productfather + "\",\"productname\":\"" + catalogname + "\",\"quotedprice\":\"" + quoteprice + "\",\"oldproduct\":\"" + oldproduct + "\",\"ispresent\":\"" + ispresent + "\",\"contractid\":\"" + $('#contractid').val() + "\",\"selectedid\":\"" + selectedvalued + "\",\"isparent\":\"" + isfather + "\",\"productfathername\":\"" + productfathername + "\",\"isnull\":\"0\"},";
      }
     }
    }
   //alert(strjson);
    if (strjson == '[') {
     strjson = "[{\"contractid\":\"" + $('#contractid').val() + "\",\"selectedid\":\"" + selectedvalued + "\",\"isnull\":\"1\"}]";
    } else {
     strjson = strjson.substr(0, strjson.length - 1);
     strjson += "]";
    }
    ids = ids.substr(0, ids.length - 1);
    subproduct(strjson, ids);
   //alert(rows.length);
   }
   //新增产品提交操作
   function subproduct(strjson, ids) {
    $.post('../handlers/contract_producthandler.ashx', { 'handlertype': 'subaddproduct', 'strjson': strjson, 'ids': ids, 'pindex': $('#pindex').val() }, function (responsedata) {121      switch (responsedata.status) {
      case "success":
       //成功的操作
       $.messager.alert('提示', responsedata.msg);
       $('#productwintree').window('close');
       //$('#selfirstcombbox').val('6774');
       $('#dg_product').datagrid('reload');
       break;
      case "failed":
       //失败的操作
       $.messager.alert('提示', responsedata.msg);
       break;
     }
    }, 'json');
   }

总结

以上所述是小编给大家介绍的jquery easyui treegrid实现显示checkbox功能，希望对大家有所帮助