如何在内部或重新排序列表和面板中找到控件？ ASP.NET

如何解决如何在内部或重新排序列表和面板中找到控件？ ASP.NET

嗨，在此功能中，我使用了ReorderList。我有一个“编辑”链接按钮，该按钮显示一个带有文本框的面板，允许我编辑“重新订购列表”中的一项。在文本框所在的“重新排序列表”和“面板”中定位控件时遇到问题。简而言之，我想选择一个项目上的“编辑”链接，然后它将弹出面板，其中包含我选择的项目中的文本。打开后，我要编辑文本并将其保存到“重新排序列表”和“数据库”中。

    ```<div style="color: Black" class="ajaxOrderedList">
                    <ajaxToolkit:ReorderList runat="server" ID="ReorderList1" DataSourceID="sqlComments" DataKeyField="RecNo" SortOrderField="CommentOrder" AllowReorder="true" PostBackOnReorder="true">                          
                        <ItemTemplate>
                            <div style="border:1px solid black; padding:5px 0px 5px 5px;">
                            Program <asp:Label ID="lblProgram" runat="server" Text='<%# Eval("ProgramNumber")%>'></asp:Label>: 
                                <asp:Label ID="lblComment" runat="server" Text='<%# Eval("Comment")%>'></asp:Label>

                                <asp:LinkButton runat="server" ID="lnkEditComment" Text="Edit" OnClick="lnkEditComment_Click"></asp:LinkButton>
                                <ajaxToolkit:ModalPopupExtender ID="modalPopup" runat="server" PopupControlID="pnlCommentInfo" TargetControlID="lnkEditComment" BackgroundCssClass="modalBackground" CancelControlID="btnCancel"></ajaxToolkit:ModalPopupExtender>
                                <asp:Panel ID="pnlCommentInfo" runat="server" Style="display: none; text-align: left" CssClass="pnlPop" BorderStyle="Double" Width="500px" ScrollBars="Auto">
                                    <asp:Label runat="server" ID="lblCommentNumber"></asp:Label><br />
                                    <br />
                                    Comment:<br />
                                    <asp:TextBox ID="txtEditComment" runat="server" Rows="6" TextMode="MultiLine" Columns="58" /><br />
                                    <br />
                                    <asp:Button ID="btnSave" runat="server" Text="Save" CausesValidation="false" CommandName="Update" />
                                    <asp:Button ID="btnCancel" runat="server" Text="Cancel" CausesValidation="false" />
                                </asp:Panel>
                                <asp:LinkButton ID="lnkDelete" runat="server" CommandName="Delete">Delete</asp:LinkButton> </div>                              
                        </ItemTemplate>
                        <DragHandleTemplate>
                            <div style="width: 15px; height: 16px; background-image: url(images/icons/drag.png); background-repeat: no-repeat; cursor: move; border: outset thin white; padding: 2px; background-position: center;">
                                &nbsp;
                            </div>
                        </DragHandleTemplate>
                        <ReorderTemplate>
                            <div style="width: 99%; border: dashed 2px #999999;">
                                &nbsp;
                            </div>
                        </ReorderTemplate>
                    </ajaxToolkit:ReorderList>
                </div>
                
            </asp:Panel>```

这是我的代码背后：

    {
        //Add code to copy the current comment from the reorderedlist to the Edit Popup Box

        TextBox newEdit = (TextBox)ReorderList1.FindControl("_rliInsert").FindControl("txtEditComment");
        Label progr = (Label)ReorderList1.FindControl("_rliInsert").FindControl("lblProgram");
        Label curComment = (Label)ReorderList1.FindControl("_rliInsert").FindControl("lblComment");

        newEdit.Text = "Program " + progr.Text + ": " + curComment.Text;

    }```