Rebind RadGrid from UserControl

[first]

I thought this would be straight forward, but doesnt look like and i have been trying for a while now. 

I have a usercontrol on a web page. The web page also has a Telerik RadGrid. On the usercontrol, i am submitting some information and on success, i need to access the RadGrid from the usercontrol and rebind the RadGrid.

I have been trying the following code in UserControl, but i get 'Nothing'

Parent.Page.FindControl("RadGrid_Numbers")


Can someone please help? I am not sure what i am missing here.

[Shinu]

Hi ,

I guess you want to access the Grid in its UserControl. Here is a sample i have tried. Please have a look, if this doesn't help, provide your full code snippet.

ASPX:

<telerik:RadGrid ID="RadGrid1" runat="server">
    <MasterTableView>
        <Columns>
            <telerik:GridBoundColumn UniqueName="OrderID" DataField="OrderID" HeaderText="OrderID">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="ShipCity" HeaderText="ShipCity" UniqueName="ShipCity"/>
        </Columns>
        <EditFormSettings UserControlName="0UserControl.ascx" EditFormType="WebUserControl" EditColumn-UniqueName="EditCommandColumn1">
        </EditFormSettings>
    </MasterTableView>
</telerik:RadGrid>

ASCX:

<asp:Label ID="Label1" runat="server" Text="Some Text"></asp:Label>
<asp:Button ID="Button1" runat="server" Text="Submit" OnClick="Button1_Click" />

ASCX.CS:

protected void Button1_Click(object sender, EventArgs e)
{
  RadGrid rad = (RadGrid)Parent.Page.FindControl("RadGrid1");
  rad.MasterTableView.GetColumn("ShipCity").Visible = false;
  rad.Rebind();
}

Thanks,
Shinu

[first]

The user control in or part of the grid. It is external to the grid but on the same aspx page. Below is the sample. Please suggest

ASPX Page:

<!-- RadGrid -->
<telerik:RadGrid ID="RadGrid1" runat="server">
    <MasterTableView>
        <Columns>
            <telerik:GridBoundColumn UniqueName="Numbers" DataField="num" HeaderText="Numbers">
            </telerik:GridBoundColumn>
...
...
        </Columns>
</MasterTableView>
</telerik:RadGrid>

<!--UserControl -->
<telerik:RadPanelBar ID="RadPanelBar1" runat="server" Skin="Default" Width="100%">
    <Items>
        <telerik:RadPanelItem runat="server" Text="" Value="TestHeader" CssClass="clsPanelItem">
            <HeaderTemplate>
                <!--the below span is required to display expand/collapse images-->
                <span class="rpExpandHandle"></span>
                <telerik:RadListView ID="RadListView_TestHeader" runat="server">
                    <EmptyDataTemplate>
                        <span><b>Test Form</b> </span>
                    </EmptyDataTemplate>
                    <ItemTemplate>
                    </ItemTemplate>
                    <ItemTemplate>
                        <span><b>Test Form</b> </span>
                    </ItemTemplate>
                </telerik:RadListView>
            </HeaderTemplate>
            <Items>
                <telerik:RadPanelItem runat="server" Text="" Value="TestDetail" CssClass="clsPanelItem">
                    <ItemTemplate>
                        <uc:TestForm ID="UserControl_TestForm" runat="server" />
                    </ItemTemplate>
                </telerik:RadPanelItem>
            </Items>
        </telerik:RadPanelItem>
    </Items>
</telerik:RadPanelBar>

UserControl - ASCX

<asp:TextBox ID="TextBox_Test" runat="server" />
<div class="Submit">
     <asp:Button ID="Button_Submit" runat="server" Text="Submit" onclick="Button_Submit_Click"></asp:Button>
</div>

<telerik:RadWindowManager ID="RadWindowManager_TestForm" runat="server" EnableShadow="true"
    VisibleStatusbar="false">
    <Windows>
        <telerik:RadWindow AutoSize="true" Behaviors="Close" Modal="true" runat="server"
            ID="RadWindow_ShowDialog" OpenerElementID="Button_Save" Title="Test Form">
            <ContentTemplate>
                <div style="width:410px;margin:5px;height:40px">
                    <asp:Label runat="server" ID="Label_Dialog" class="contentPink" Text="" />
                </div>
                <div class="PopupButtons">
                    <br />
                    <asp:Button ID="Button_Close" runat="server" Text="Ok" Width="50px" OnClientClick="CloseDialog();return false;" />
                    </div>
            </ContentTemplate>
        </telerik:RadWindow>
    </Windows>
</telerik:RadWindowManager>

<script type="text/javascript" language="javascript">
    function CloseDialog() {
        $find("<%= RadWindow_ShowDialog.ClientID %>").close();
    }
</script>

ASCX.VB (code behind for usercontrol)

Protected Sub Button_Submit_Click(sender As Object, e As EventArgs) Handles Button_Submit.Click
        SaveTestForm() 'Saves the form in database

            Dim script As String = "function f(){$find(""" + RadWindow_ShowDialog.ClientID & """).show();}Sys.Application.add_load(f); "
            ScriptManager.RegisterStartupScript(Page, Page.[GetType](), "key", script, True)

End Sub

In the usercontrol, on submit button click, i am showing the RadWindow to show confirmation message that the data successfully got submitted. The RadWindow has an 'OK' button, which closes itself. Upon closing or before showing the RadWindow, i want to Rebind my RadGrid which is on the ASPX page to reflect the saved data.

Please suggest.

[first]

I found the solution; referred to this link - AjaxRequest. If you have any other alternate approach, let me know.  

[first]

However i have one problem here, along with RadGrid (no issues with Radgrid, it rebinds nicely), i also have to repopulate a ASP.NET textbox control. I have registered the asp.net textbox in the ajaxmanager, also the code is in place (i can see the correct values getting assigned to the textbox, but it doesnt reflect the new values (still shows the old value)). 

Please suggest.

[first]

Forgot to mention, i am reading the value from database (using datatable), and appending it to this TextBox.

Anyone from telerik team?

[first]

Never mind, i solved the issue. It was something in my code that was creating conflicts.