Get User Data from Dynamic Control in RadWindow

[Daniel]

Hello,

I am working on a project with a RadWindow.
Controls are added dynamically to the RadWindow. (TextBox, radioButton CheckBox etc.)
The user can enter data into the dynamic controls. 

My ASPX code::

<telerik:RadWindow runat="server" ID="RadWindow2">
                        <ContentTemplate>
                            <telerik:RadAjaxPanel ID="MyPopUp_RadAjaxPanel1" runat="server" Width="90%"></telerik:RadAjaxPanel>
                            <asp:UpdatePanel ID="Updatepanel1" runat="server" UpdateMode="Conditional">
                                <ContentTemplate>
                                    <asp:Button ID="Button_Ajax" Text="Click for AJAX" runat="server" OnClick="Button_Ajax_Click" />
                                    <br />
                                    <asp:Label ID="Label1" Text="I will be updated" runat="server" />
                                </ContentTemplate>
                            </asp:UpdatePanel>
                        </ContentTemplate>
                    </telerik:RadWindow>

  <telerik:RadButton ID="btn_win2" runat="server" Text="win 2">
                    </telerik:RadButton>

VB.NET:

   Protected Sub btn_win2_Click(sender As Object, e As EventArgs) Handles btn_win2.Click
       Dim lbl As Label = New Label()
       Dim txt As TextBox = New TextBox()
       txt.ID = "txb_win2"
       lbl.ID = "lbl_win2"
       lbl.Text = "new lbl"

       MyPopUp_RadAjaxPanel1.Controls.Add(lbl)
       MyPopUp_RadAjaxPanel1.Controls.Add(txt)
       RadWindow2.VisibleOnPageLoad = True
       'RadWindow2.Width = 500
       'RadWindow2.Height = 300
       RadWindow2.Modal = True
       RadWindow2.CenterIfModal = True
   End Sub

Protected Sub Button_Ajax_Click(sender As Object, e As EventArgs)
       RadWindow2.VisibleOnPageLoad = False
       lbl_NewUserData.Text = ""
       'Dim panel As RadAjaxPanel = TryCast(RadWindow2.ContentContainer.FindControl("MyPopUp_RadAjaxPanel1"), RadAjaxPanel)
       For Each ct In RadAjaxPanel1.Controls
           lbl_NewUserData.Text += ct.ToString() + vbCrLf
       Next

   End Sub

How can I access the controls and the data which the user entered?
I want to retrieve this information when the user clicks a button.

Thanks,

Daniel.

[Marin Bratanov]

Hello Daniel,

Her are some resources that should help you with this:

• http://stackoverflow.com/questions/3945324/asp-net-dynamically-added-user-control-saving-values-after-postback—on recreating dynamically added controls with each postback. This is vital for all dynamically added controls in ASP.
• http://www.telerik.com/help/aspnet-ajax/window-troubleshooting-opening-from-server.html—on opening the RadWindow from the server.
• http://www.telerik.com/help/aspnet-ajax/window-controls-container.html—on accessing controls in the RadWindow.
• http://www.telerik.com/help/aspnet-ajax/window-ajaxifying.html—on using the ContentTemplate with AJAX.

I hope this helps get you started.


Regards,

Marin Bratanov
Telerik