使用C#将排序添加到嵌套Gridview ASP.net

时间:2013-03-05 10:38:26

标签: c# asp.net visual-studio sorting gridview

我已经在我的页面上搜索了如何实现这一点。我有一个顶级gridview,它允许排序和嵌套的网格视图,这些网格视图是在页面编译时动态生成的,因此'x'数量的嵌套网格视图位于动态html div中,可以在users命令中从不可见切换为可见。我遇到的问题是我无法弄清楚如何在这些嵌套的网格视图上进行排序而不会折叠div /导致回发。

下面显示了如何在asp.net中生成主gridview(gvSalesDiv)和嵌套gridview(gvTheDivisionCustomers)

    <asp:GridView ID="gvSalesDiv" AllowSorting="true" onsorting="GridView1_Sorting" runat="server" GridLines="Both" OnRowDataBound="gvOrderLineDetail_RowDataBound" AutoGenerateColumns="False"
        Width="100%" Height="210px" BackColor="WhiteSmoke" AlternatingRowStyle-BackColor="#DADDE2"
        HeaderStyle-Font-Size="Medium"  Visible="true">
        <Columns>
        <asp:TemplateField HeaderText="Toggle Detail">
                    <ItemTemplate>
                        <a href="javascript:switchViews('div<%# Eval("SalesDivision") %>');">

                        <img id="imgdiv<%# Eval("SalesDivision") %>" alt="toggle"  border="0"
                         src="/salesconsole/toggle-off.png" />
                        </a>                      

                    </ItemTemplate>
                    </asp:TemplateField>

        <asp:BoundField DataField="SalesDivision"  HeaderText="Sales Division">

                <ItemStyle  Font-Bold="True" ForeColor="CornflowerBlue" HorizontalAlign="Center"></ItemStyle>
                </asp:BoundField>
                <asp:BoundField DataField="LastDay" SortExpression="LastDay" DataFormatString="{0:C}" HeaderText="Last 24 Hours" >


                </asp:BoundField>
                <asp:BoundField DataField="LastWeek" SortExpression="LastWeek" DataFormatString="{0:C}" HeaderText="Last 7 Days" >

                </asp:BoundField>
                <asp:BoundField DataField="Last30Days" SortExpression="Last30Days" DataFormatString="{0:C}" HeaderText="Last 30 Days" >

                </asp:BoundField>
                <asp:BoundField DataField="Last3Months" SortExpression="Last3Months" DataFormatString="{0:C}" HeaderText="Last 3 Months" >

                </asp:BoundField>
                <asp:BoundField DataField="Last6Months" SortExpression="Last3Months" DataFormatString="{0:C}" HeaderText="Last 6 Months" >

                </asp:BoundField>
                <asp:BoundField DataField="LastYear" SortExpression="LastYear" DataFormatString="{0:C}" HeaderText="Last Year" >

                </asp:BoundField>
                <asp:TemplateField>
                    <ItemTemplate>
                                 <tr>
                                 <td colspan="100">     
                             <div id="div<%# Eval("SalesDivision") %>" style="display:none;position:relative;left:25px;" >

         <h3 title="<%# Eval("SalesDivision") %> Sales"><%# Eval("SalesDivision") %> Sales Breakdown</h3>

        <asp:GridView ID="gvTheDivisionCustomers" AllowSorting="true" onsorting="GridView2_Sorting" BackColor="WhiteSmoke" AlternatingRowStyle-BackColor="#DADDE2"
          Width="100%" 
        AutoGenerateColumns="false" runat="server">
        <Columns>
        <asp:TemplateField HeaderText="Show More Detail">
                    <ItemTemplate>
                       <a href="sales-customers-detail.aspx?CustomerID=<%# Eval("CustomerID") %>&CustomerName=<%# Eval("CustomerName") %>" target="_blank" style="color:Blue; text-decoration:underline"> More Details
                        </a>                      

                    </ItemTemplate>
                    </asp:TemplateField>

        <asp:BoundField DataField="CustomerID" HeaderText="ID"/>
        <asp:BoundField DataField="CustomerName" HeaderText="Name"  />
        <asp:BoundField DataField="Last24Hours" HeaderText="Last 24 Hours" SortExpression="LastDay" DataFormatString="{0:C}"  />
        <asp:BoundField DataField="Last7Days" HeaderText="Last 7 Days" SortExpression="Last7Days" DataFormatString="{0:C}"  />
       <asp:BoundField DataField="Last30Days" HeaderText="Last 30 Days" SortExpression="Last30Days" DataFormatString="{0:C}"  />
       <asp:BoundField DataField="Last3Months" HeaderText="Last 3 Months" SortExpression="Last3Months" DataFormatString="{0:C}"  />
       <asp:BoundField DataField="Last6Months" HeaderText="Last 6 Months" SortExpression="Last6Months" DataFormatString="{0:C}"  />
       <asp:BoundField DataField="LastYear" SortExpression="LastYear" HeaderText="Last Year" DataFormatString="{0:C}" />

       </Columns>


        </asp:GridView>

                               </div>    
                                 </td></tr>    
                              </ItemTemplate>

                                            </asp:TemplateField>  
        </Columns>
        </asp:GridView>

我在Page_Load上填充主网格视图,并使用OnRowDataBound方法创建嵌套的网格视图。我有一个主gridview的排序方法,也可以正常工作。下面是嵌套gridview的OnSorting方法,这是我被卡住的地方......我无法访问此对象

    protected void GridView2_Sorting(Object sender, GridViewSortEventArgs e)
{
    // TO DO : Sort the nested gridview....All I can get at is the sort expressions or
    cast the sender into a gridview but even then I wouldn't know the correct SQL query to bind with unless I knew which 'div' I was in... 

}

2 个答案:

答案 0 :(得分:2)

基本上我们可以说,您正在寻找一个ID或者其他什么可以为排序方法创建查询? 如果这是正确的,我们可以找到解决方案。 在第一个gridviews(gvSalesDiv)ItemTemplate中添加一个新标签,如下所示:

 <asp:Label ID="lblID" runat="server" Text='<%# Bind("Id") %>'></asp:Label>

在codebehinde中你可以找到它:

Label lblID = (Label)((GridView)sender).NamingContainer.FindControl("lblID");

希望它有效!

答案 1 :(得分:0)

如果您正在寻找如何获取gridview所在的父div,您可以使用:

首先,您需要将发送者强制转换为gridview,然后创建一个html元素并将其强制转换为gridview的父级。像这样:

    Dim test As Button = CType(sender, Button)
    Dim div As HtmlGenericControl
    div = CType(test.Parent, HtmlGenericControl)
    Dim t As String = test.ID

在此示例中,我将发送者转换为按钮,但您可以轻松更改此按钮。在此示例中,您需要使用“runat =”server“”在服务器上运行div。如果您不想在服务器端创建它,则可以更改从HTMLGenericControl转换为ContentPlaceHolder的方式。如果这有帮助,或者您需要更多信息,请告诉我。