[Solved] RowDetailsVisibilityChanged and Details Processing Indicator

[Paurav]

I am using RadGridView that shows details via RowDetailsTemplate when row is selected. I'm loading a view into the details template dynamically in RowDetailsVisibilityChanged event. This page when initialized loads some data that takes a few seconds to load. What's happening is there is a pause when the row is clicked until the view loads all the data in the background and then the view is shown. What I'm trying to do is separate the loading of view and Initializing the view. Therefore the view can show the processing indicator so the user know that click occurred properly. Is there a way to achieve this? Following is the code in my DetailsVisibilityChanged event:

private void DataGrid_RowDetailsVisibilityChanged(object sender, Telerik.Windows.Controls.GridView.GridViewRowDetailsEventArgs e)
{
    var contentControl = (e.DetailsElement as ContentControl);
    if (contentControl.Content == null)
    {
        var ti = e.Row.DataContext as someObject;
        IPresentationModelBase pmBase = Model.InstantiateItemDetailsPM();
        IView viewObj = pmBase.ViewObj;

        //This should show the processing indicator
        contentControl.Content = viewObj;
        //Which processing, initializing should occur.
        Model.InitializeItemDetailsPM(pmBase, ti);
    }

}

Thanks

[Maya]

Hello Paurav,

 
You can use RadBusyIndicator and to initialize it on the LoadingRowDetails or RowDetailsVisibilityChanged events of the grid. I am sending you a sample project illustrating how to implement a busy indicator on the LoadingRowDetails event. 
You can find online examples about the RadBusyIndicator in our online demos.

Best wishes,
Maya
the Telerik team

[Paurav]

Thanks Maya.