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下面通過本文給大家介紹下圖中的treegrid如何實現？

要求：動態加載；級聯勾選；通關類型判斷顯示包庫/還是鏡像（列有所不同，鏡像共4列），勾選一個復選框，後面的復選框變為不可勾選狀態。

下面是具體代碼：

1，初始化treegrid，（其中有幾個type列，是由後台人員提供的字段名，雖然我也不想弄一堆type...汗）

var root = 20543;
   //初始化產品樹
   function InitProductTreeGrid(rootid) {
    var type = '<%=Controler.ProductType%>';
   var ishowPack = true;
   var ishowMirro = true;
   //1,包庫；2，鏡像
   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, //寬度自適應窗口
    rownumbers: false, //是否加行號
    singleSelect: true,
    scrollbarSize: 0,  //去除滾動條，否則右邊最後一列會自動多處一塊
    columns: [[
     { title: '產品列表', field: 'CatalogName', width: 210 },
     { title: '產品ID', field: 'CatalogId', hidden: true },
     { title: '父產品ID', field: 'ParentId', hidden: true },
     { title: '父產品名稱', field: 'ParentName', hidden: true },
     { title: '產品類型', field: 'ProductType', hidden: true },
     { title: '是否為子節點', field: 'isLeaf', hidden: true }, //備注：(1,是;0,否)
     { title: '是否為父節點', 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: '當前價格', 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: '當前價格', 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: '前階段價格', 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: '早期價格', 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: '是否贈送', 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) {
     //逐層加載
     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()級聯方法

var parentcid;
  var ispid;
  var tempid;
  //父節點選中關聯子節點選中
  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') {
          //獲取checkbox對象
          var obj = $(cols).eq(j).find('div input:checkbox');
          //如果父節點選中，自己點也連帶選中
          showProductTree(obj, contractproducttype, parentcid, ispid)
         }
        }
        break;
      }
     }
    }
   }
  }
function showProductTree(obj, catalogtype, id, isparent) {
   //alert(id.indexof('2'));
   if (isparent == 1) {
    //當前節點下包庫子節點
    //alert('$(obj).attr(checked)' + $(obj).attr('checked'));
    var state = $(obj).attr('checked') == undefined ? false : true;
    //alert('state:'+state+' id:'+id);
    //找出子節點
    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');
      //如果當前節點的選中狀態和父節點不同，並且當前節點不是父節點
      $(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)
   }
  }
  //修改其他產品類型的checkbox的只讀狀態
  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);
    }
   });
  }
  //查找上一層節點,修改其狀態
  function updateParentNodeCheckState(obj, state, catalogtype) {
   var pid = $(obj).attr('parent');
   //如果父節點是根節點，則不再執行
   if (pid == catalogtype + root || $('#' + pid).length == 0) return;
   var parent = $('#' + pid);
   if (!state) {
    //取消父節點的選中狀態
    parent.attr('checked', false)
    parent.prop('checked', false)
   } else {
    //alert('pid:'+pid+'---'+$('input[parent="' + pid + '"]:checked').length+'------'+$('input[parent="' + pid + '"]').length);
    //alert('checkedLen:' + $('input[parent="' + pid + '"]:checked').length + ' len:' + $('input[parent="' + pid + '"]').length);
    //子節點全部選中
    if ($('input[parent="' + pid + '"]:checked').length == $('input[parent="' + pid + '"]').length) {
     parent.attr('checked', true);
     parent.prop('checked', true);
    }
   }
   //修改其他產品類型的checkbox的只讀狀態
   disabledOthersCatalogType(parent, state, catalogtype)
   //繼續查找上一層節點
   updateParentNodeCheckState(parent, state, catalogtype)
  }

3，由於是拼接比較繁雜，在此順便再說一下傳參代碼

//新增產品單擊操作處理
  function subAddProduct() { 5    var strJson = '';
   var selectedvalued = $('#cbo_selFirstCombbox').combobox('getValue');
   //下拉框選中的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':
        //原樹選中節點id的獲取(不包含修改的id節點)，此步驟目的是為了配合後台方法，作用是先刪除當前版本下所有樹選中的節點，再獲取頁面中修改後的
        //節點，進行更新操作
        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 = $(cols).eq(j).find('div input').attr('name');
         if (contractproducttype == 'IsPresent') {
          var type = '<%=Controler.ProductType%>';
           contractproducttype = type == '1' ? 'CurrentYearPrices' : 'MirrorCurrentYearPrices'; //如果類型為鏡像，則默認為鏡像當年
          //alert($(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);
   }
   //新增產品提交操作
   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":
       //失敗的操作
       $.messager.alert('提示', responseData.Msg);
       break;
     }
    }, 'json');
   }

總結

以上所述是小編給大家介紹的jQuery Easyui Treegrid實現顯示checkbox功能，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對網站的支持！