How to refresh parent page grid when close radwindow?

[Joe]

In the parent page, it had a preview button to prompt a radwindow.

How can I refresh the grid in parent page when user click the Close [X] button of the radwindow.

The radwindow generate in code behind:

Protected Sub rtbMenu_ButtonClick(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadToolBarEventArgs) Handles rtbMenu.ButtonClick
    If e.Item.Value = "Preview" Then
        Dim url = "~/TrainingAdmin/SIMPER_view.aspx?SIMPER_ID=0&UserID=" & Request.QueryString("UserID") & "&From=" & RadDatePicker_ValidFrom.SelectedDate & "&To=" & RadDatePicker_ValidTill.SelectedDate

        Dim windowManager As New RadWindowManager()
        Dim window1 As New RadWindow()
        ' Set the window properties
        window1.NavigateUrl = url
        window1.ID = "RadWindow1"
        window1.Height = 750
        window1.Width = 740
        window1.Top = 140
        window1.Left = 250

        window1.AutoSize = False
        window1.VisibleTitlebar = True
        window1.VisibleStatusbar = False
        window1.VisibleOnPageLoad = True

        ' Set this property to True for showing window from code
        windowManager.Windows.Add(window1)
        Me.Form.Controls.Add(window1)

    ElseIf e.Item.Value = "Refresh" Then
        Response.Redirect("~/TrainingAdmin/SIMPER_details.aspx?userID=" & Request.QueryString("UserID"))

    End If
End Sub

[Princy]

Hi Joe,

You can attach an OnClientClose client event for your RadWindow from C# code and in the OnClientClose event you can rebind the RadGrid as shown below.

C#:

window1.AutoSize = false;
window1.VisibleTitlebar = true;
window1.VisibleStatusbar = false;
window1.VisibleOnPageLoad = true;
window1.OnClientClose = "OnClientClose";

JavaScript:

<script type="text/javascript">
    function OnClientClose(sender, args) {
        var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
        masterTable.rebind();
    }
</script>

Thanks,
Princy.

[Joe]

Great. the code works.
Thanks a lot

[Ronald]

What if a RadGrid is not using the NeedDataSource event, but instead the data source is being set in a RadTabStrip TabClick event where I bind the datasource to a List<> of custom objects.

Does rebinding the Master Table work in that scenario conform to your example here?

 

[Marin Bratanov]

Hello Ronald,

With such simple data binding it is likely that a lot of the complex features (like sorting, grouping, filtering and so on) will not function. Thus, I recommend that you move towards the NeedDataSource data binding or using a declarative data source (you can set the grid's Visible property to false to prevent it from data binding if you don't want it to): https://www.telerik.com/support/kb/aspnet-ajax/grid/details/how-to-bind-radgrid-properly-on-server-side.

If you want to keep using such simple data binding, I'd suggest you invoke a postback (e.g., click a hidden button programmatically) and provide the new data source to the grid. The .rebind() method may not work as expected in such a case because the grid cannot know what it;s data source is - it is not a declarative data source it can ask to fetch data, nor is its NeedDataSource event hooked, it expects the developer to provide data.

Regards,
Marin Bratanov
Progress Telerik