简单的GridView嵌套实现

具体效果如下：

JS代码，用于显示 隐藏嵌套的GRIDVIEW：

        /*隐藏嵌套的Gridview*/
        function ShowHidden(sid, ev) {
            ev = ev || window.event;
            var target = ev.target || ev.srcElement;
            var oDiv = document.getElementById("div" + sid);
            oDiv.style.display = oDiv.style.display == "none" ? "block" : "none";
            target.innerHTML = oDiv.style.display == "none" ? "展开列表" : "隐藏列表";
        }

 Gridview嵌套前台代码：

 <asp:GridView ID="gvItem" Width="600px" OnRowDataBound="gvItem_RowCommand" DataKeyNames="ID"
            runat="server" AutoGenerateColumns="False">
            <Columns>
                <asp:BoundField DataField="ID" HeaderStyle-Width="15%" HeaderText="ID">
                    <HeaderStyle Width="15%" />
                </asp:BoundField>
                <asp:BoundField DataField="姓名" HeaderStyle-Width="30%" HeaderText="姓名">
                    <HeaderStyle Width="30%" />
                </asp:BoundField> 
                <asp:TemplateField HeaderStyle-Width="40%">
                    <ItemTemplate>
                        <!---点击用于列表展开，执行JS函数--->
                        <span id="btnShowHidden<%#Eval("ID") %>" style="float: right; color: Red; cursor: pointer;
                            margin: 0 0 0 0" onclick="ShowHidden('<%#Eval("ID") %>',event)">展开列表</span> 
                        <tr>
                            <td colspan="100%">
                                <div id="div<%#Eval("ID") %>" style="display: none;">
                                    <div style="float: left; font-size: small">
                                        └</div>
                                    <div style="border: 1 solid RGB(40,80,150); position: relative; left: 0px; overflow: auto;
                                        width: 98%;">
                                        <!---绑定内层Gridview--->
                                        <asp:GridView ID="gvInnerItem" Width="100%" Height="100%" runat="server" AutoGenerateColumns="false">
                                            <Columns>
                                                <asp:BoundField DataField="ID" HeaderStyle-Width="15%" HeaderText="ID">
                                                    <HeaderStyle Width="15%" />
                                                </asp:BoundField>
                                                <asp:BoundField DataField="姓名" HeaderStyle-Width="70%" HeaderText="姓名">
                                                    <HeaderStyle Width="70%" />
                                                </asp:BoundField> 
                                            </Columns>
                                        </asp:GridView>
                                    </div>
                                </div>
                            </td>
                        </tr>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

 后台代码：

 

 protected void Page_Load(object sender, EventArgs e)
    {        
        BindData();
    }

    //绑定外层Gridview列表
     public void BindData()
    {
        gvItem.DataSource = CommonClass.GetData("外层表格");
        gvItem.DataBind();
    }

    //绑定嵌套的Gridview列表
     protected void gvItem_RowCommand(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridView oGridView = (GridView)e.Row.FindControl("gvInnerItem");
            if (oGridView != null)
            {
                int id = Convert.ToInt32(gvItem.DataKeys[e.Row.RowIndex].Value);
                oGridView.DataSource = CommonClass.GetData("内层表格ID=" + id);
                oGridView.DataBind();
            }
        }
    }