Gridview内部gridview内部gridview

Question

我使用此代码绑定嵌套在gvCustomers网格视图中的gvOrders网格视图。它运行完美。

 Protected Sub OnRowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
        If e.Row.RowType = DataControlRowType.DataRow Then
            Dim code As String = "1"
            AccessDataSource2.SelectCommand = "SELECT * FROM [Tabella4] WHERE ([d] = '" & code & "')"

            Dim gvOrders As GridView = TryCast(e.Row.FindControl("gvOrders"), GridView)
            gvOrders.DataSource = AccessDataSource2
            gvOrders.DataBind()
        End If

这是HTML面。共有三个gridview：gvCustomers内的gvOrders内的gvOrders2。

<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false" CssClass="Grid"
      DataKeyNames="a" OnRowDataBound="OnRowDataBound">
        <Columns>
            <asp:TemplateField>
                <ItemTemplate>
                    <img alt = "" style="cursor: pointer" src="images/plus.png" />
                    <asp:Panel ID="pnlOrders" runat="server" Style="display: none">
                        <asp:GridView ID="gvOrders" runat="server" AutoGenerateColumns="false" CssClass = "ChildGrid">
                            <Columns>
             <asp:TemplateField>
                <ItemTemplate>
                    <img alt = "" style="cursor: pointer" src="images/plus.png" />
                    <asp:Panel ID="pnlOrders2" runat="server" Style="display: none">
                        <asp:GridView ID="gvOrders2" runat="server" AutoGenerateColumns="false" CssClass = "ChildGrid">
                            <Columns>
                                <asp:BoundField ItemStyle-Width="150px" DataField="f" HeaderText="f" />
                                <asp:BoundField ItemStyle-Width="150px" DataField="g" HeaderText="g" />
                            </Columns>
                        </asp:GridView>
                    </asp:Panel>
                </ItemTemplate>
            </asp:TemplateField>

                                <asp:BoundField ItemStyle-Width="150px" DataField="d" HeaderText="d" />
                                <asp:BoundField ItemStyle-Width="150px" DataField="e" HeaderText="e" />
                            </Columns>
                        </asp:GridView>
                    </asp:Panel>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:BoundField ItemStyle-Width="150px" DataField="a" HeaderText="a" >
<ItemStyle Width="150px"></ItemStyle>
            </asp:BoundField>
            <asp:BoundField ItemStyle-Width="150px" DataField="b" HeaderText="b" >
<ItemStyle Width="150px"></ItemStyle>
            </asp:BoundField>
        </Columns>
    </asp:GridView>

     <asp:AccessDataSource ID="AccessDataSource1" runat="server" 
         DataFile="~/App_Data/db1.mdb" SelectCommand="SELECT * FROM [Tabella3]">
     </asp:AccessDataSource>
     <asp:AccessDataSource ID="AccessDataSource2" runat="server" 
         DataFile="~/App_Data/db1.mdb" SelectCommand="SELECT * FROM [Tabella4]">
     </asp:AccessDataSource>
     <asp:AccessDataSource ID="AccessDataSource3" runat="server" 
         DataFile="~/App_Data/db1.mdb" SelectCommand="SELECT * FROM [Tabella5]">
     </asp:AccessDataSource>

gvOrders2网格视图嵌套在gvOrders网格视图内部：如何从AccessDataSource3填充gvOrders2 gridview？热门找到gvOrders2控件？

Answer 1

在aspx中，添加突出显示的文本：

在您的cs中添加函数： 受保护的Sub gvOrders2_OnRowDataBound（ByVal发送者作为对象，ByVal e作为GridViewRowEventArgs）

并且在该函数中，使用与OnRowDataBound中相同的方法。就像是： 如果e.Row.RowType = DataControlRowType.DataRow然后

        AccessDataSource3.SelectCommand = "SELECT ..."

        Dim gvOrders2 As GridView = TryCast(e.Row.FindControl("gvOrders2"), GridView)
        gvOrders2.DataSource = AccessDataSource3
        gvOrders.DataBind()
    End If