Question

I am creating dynamic text boxes on button click and then showing values on another button click. It works fine until I use ajax updatepanel. In that case values are not shown when I hit second button. My aspx code is:

aspx markup is:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <div id="divRT" runat="server">
        </div>
           <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </ContentTemplate>
    <Triggers>
    <asp:AsyncPostBackTrigger ControlID="btnAccessValues" EventName="Click" />
    <asp:AsyncPostBackTrigger ControlID="lbnAddNew" EventName="Click" />
    </Triggers>
</asp:UpdatePanel>
<div>
    <asp:Button ID="btnAccessValues" Text="save" runat="Server" OnClick="btnAccessValues_Click" />
    <br />
    <br />       
</div>

Code to show values.

 Protected Sub btnAccessValues_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAccessValues.Click
        If ViewState(strVS_DynamicIds) IsNot Nothing Then
            Dim lstDynId As List(Of String) = DirectCast(ViewState(strVS_DynamicIds), List(Of String))
            For Each strId As String In lstDynId
                Dim tbx As TextBox = DirectCast(divRT.FindControl(strId), TextBox)

                Response.Write(tbx.Text)
                Label1.Text = tbx.Text
            Next
        End If
    End Sub

I am using this article as reference:

http://www.c-sharpcorner.com/uploadfile/abhijeetsinghai/creating-textboxes-dynamically-at-runtime/

Please suggest solution.

Regards,
Asif Hameed

Answer 1

When i try implementing your scenario the only problem i found is the triggers, So comment triggers in your code and then try it again

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <div id="divRT" runat="server">
        </div>
           <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </ContentTemplate>        
</asp:UpdatePanel>
<div>
    <asp:Button ID="btnAccessValues" Text="save" runat="Server" OnClick="btnAccessValues_Click" />
    <br />
    <br />       
</div>