3

我正在使用嵌套网格视图，其中网格视图中的每一行都有子网格视图。我正在使用Parent GridView的RowDataBound事件来绑定Child GridView。我的问题是，如何在子 gridViews RowDataBound事件上获取父 GridView 的键。

下面是示例代码：

<asp:GridView ID="gvParent" DataKeyNames="ID" runat="server" PageSize="1" AllowPaging="true" PagerSettings-Mode="NextPrevious" AutoGenerateColumns="False" SkinID="GVCenter" onrowdatabound="gvParent_RowDataBound">
   <Columns>
        <asp:BoundField DataField="Name" />
        <asp:TemplateField>
           <ItemTemplate>
               <asp:GridView ID="gvChild"  DataKeyNames="ID" runat="server" AutoGenerateColumns="false" ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">
                  <Columns>
                     <asp:BoundField DataField="Name" />                     
                  </Columns>
                </asp:GridView>
           </ItemTemplate>
        </asp:TemplateField>
   </Columns>
</asp:GridView>

这是后面的代码：

    protected void gvParent_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridView gvChild= (GridView)e.Row.FindControl("gvChild");
            gvChild.DataSource = getChildObj();
            gvChild.DataBind();
        }
    }

   protected void gvChild_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            // Here I need to get the parent gridview Row Key
        }
    }

希望上面的代码解释了所有的场景。

提前感谢桑迪

4

5 回答 5

8

试试这个

 <asp:GridView ID="gvParent" DataKeyNames="ID" runat="server" PageSize="10" AllowPaging="true"
            PagerSettings-Mode="NextPrevious" AutoGenerateColumns="False" OnRowDataBound="gvParent_RowDataBound">
            <Columns>
                <asp:BoundField DataField="Name" />
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:HiddenField ID="HdnID" runat="server" Value='<%# Eval("ID") %>' />
                        <asp:GridView ID="gvChild" DataKeyNames="ID" runat="server" AutoGenerateColumns="false"
                            ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">
                            <Columns>
                                <asp:BoundField DataField="Name" />
                            </Columns>
                        </asp:GridView>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

背后的代码

protected void gvParent_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridView gvChild = (GridView)e.Row.FindControl("gvChild");
            gvChild.DataSource = GetData();
            gvChild.DataBind();
        }
    }

    protected void gvChild_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string ID = ((HiddenField)e.Row.Parent.Parent.Parent.FindControl("HdnID")).Value;
        }
    }
于 2012-06-13T05:50:08.307 回答
4

我不认为你将能够正常跟踪它，但我会将 ID 字段嵌入到隐藏字段中，并将这个隐藏字段放在 TemplateField 下，

<ItemTemplate> 
    <asp:HiddenField ID="idOfYourHiddenField" runat="server" Value='<%# Eval("ID") %>' />     
    <asp:GridView ID="gvChild"  DataKeyNames="ID" runat="server" AutoGenerateColumns="false" ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">                   
        <Columns>                      
            <asp:BoundField DataField="Name" />                                         
        </Columns>                 
    </asp:GridView>            
 </ItemTemplate>

这样你就可以通过去获得它的价值

gvChild.Parent.FindControl("idOfYourHiddenField");
于 2012-06-13T05:50:13.197 回答
2

您可以使用Parent属性访问子 Gridview 的父级。你必须试试这个：

 GridView gvChild = (GridView)e.Row.FindControl("gvChild");
     Response.Write(gvChild.Parent);
于 2012-06-13T05:59:06.343 回答
2

您必须后退 4 步并获得这样的父行

protected void gvChild_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                GridViewRow gvMasterRow = (GridViewRow)e.Row.Parent.Parent.Parent.Parent;
            }
        }
于 2012-06-13T06:03:09.167 回答
0 
<asp:GridView ID="gvParent" DataKeyNames="ID" runat="server" PageSize="1" AllowPaging="true"
PagerSettings-Mode="NextPrevious" AutoGenerateColumns="False" SkinID="GVCenter"
OnRowDataBound="gvParent_RowDataBound">
<Columns>
    <asp:BoundField DataField="Name" />
    <asp:TemplateField>
        <ItemTemplate>
            <asp:GridView ID="gvChild" DataKeyNames="ID" runat="server" AutoGenerateColumns="false"
                ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <%# (((IDataItemContainer)Container.Parent.Parent.Parent).DataItem as MyClass).MyProperty %>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>
        </ItemTemplate>
    </asp:TemplateField>
</Columns>

于 2015-07-13T22:12:15.797 回答