ASP.Net Telerik RadGrid动态生成表头

　　Telerik RadControlsForASP.NET.AJAX是一款很强大的第三方控件，RadGrid是里面用的最多的控件。在旧版本中，要想生成多行多列的表头，应该重写GridBenDept_ItemCreated方法，在内部重新绘制表头。具体实现如下。

        /// <summary>
        /// 创建表头
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void GridBenDept_ItemCreated(object sender, GridItemEventArgs e)
        {
            TableHeaderCell tableCell;
            switch (e.Item.ItemType)
            {
                case Telerik.Web.UI.GridItemType.Header:
                    //第一行表头
                    TableCellCollection tcHeader = e.Item.Cells;

                    tcHeader.Clear();
                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("rowspan", "2");
                    tableCell.Text = string.Empty;
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "1");
                    tableCell.Text = string.Empty;
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("rowspan", "2");
                    tableCell.Text = "部门编号";
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("rowspan", "2");
                    tableCell.Text = "<Center>部门名称</Center>";
                    tcHeader.Add(tableCell);


                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "2");
                    tableCell.Text = "<Center>列1</Center>";
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "2");
                    tableCell.Text = "<Center>列2</Center>";
                    tcHeader.Add(tableCell);



                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "2");
                    tableCell.Text = "<Center>列3<Center>";
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "2");
                    tableCell.Text = "<Center>列4</Center>";
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("colspan", "2");
                    tableCell.Text = "<Center>列5</Center>";
                    tcHeader.Add(tableCell);

                    tableCell = new TableHeaderCell();
                    tableCell.Attributes.Add("rowspan", "2");
                    tableCell.Text = "<Center>操作</Center>" + "</th></tr><tr>";
                    tcHeader.Add(tableCell);

                    //第二行表头
                    for (int i = 0; i < 5; i++)
                    {
                        tableCell = new TableHeaderCell();
                        tableCell.Text = "<Center>XX</Center>";
                        tcHeader.Add(tableCell);
                        tableCell = new TableHeaderCell();
                        tableCell.Text = "<Center>XX</Center>";
                        tcHeader.Add(tableCell);
                    }
                    break;
            }
        }

生成的表头截图如下：