Is it possible to check the busy indicator loading performance?

[Psyduck]

Hello.

First of all, my problem is that when the window is opened, the busy indicator appears after about 1-2 seconds.

 

The window is wrapped with a busy indicator.

I use async on Loaded Evenet to control the IsBsuy property.

<telerik:EventToCommandBehavior.EventBindings>
	<telerik:EventBinding EventName="Loaded" Command="{Binding OnEventLoadedCommand}"/>
</telerik:EventToCommandBehavior.EventBindings>

public ICommand OnEventLoadedCommand { get => new DelegateCommand(obj => Loaded(obj)); }
private async void Loaded()
{
    IsBusy = true;

        DataLoad . . . . (using async task)

    IsBusy = false;
}

 

In a simple sample project, it appears immediately.
However, in my actual project, it is a bit delayed.

 

This is my guess.
Before Loaded, my actual project contains a lot of controls.

The window contains navigation.

There are about 10 usercontrols.

<Window>
    <DataTemplate ....  dataconext = ViewModel> * 10
</Window>

<usercontrol> * 10
    <Many Controls Input Initial Setting>
</usercontrol>

ViewModel..cs => Read values ​​of many properties before constructor

 

User controls all share the window viewmodel (not separate, only the WindowViewModel).

I think this is the cause of the first creation, but what about it?


Is there any way to solve this? If not, what's the problem?

 

Thanks.

[Dilyan Traykov]

Hello Psyduck,
Thank you for the provided code snippets.
I cannot be certain without being able to replicate the issue at my end, however, a possible reason I can think of for this delay is a timing issue caused by the fact that the RadBusyIndicator is not displayed immediately. This can be controlled via the DisplayAfter property.
Can you please try setting it to 00:00:00 and let me know if it resolves the issue? If that is not the case, please isolate this in a small sample project so that I can further investigate it at my end. If you do not wish to make the project public, you can open a new support ticket and attach it there.
Thank you in advance for your cooperation on the matter. I will be awaiting your reply.

[Psyduck]

I didn't touch the Delay After default (100 milliseconds), but I got delay of 1-2 seconds.

But when I set 00:00:00 it worked immediately.

thank you.

[Dilyan Traykov]

I'm glad to hear that setting the DelayAfter property resolved your issue. Do let me know if I can further assist you with anything else.