RadBusyIndicator react too late

[Gyula]

Dear Support!

I am using RadControls_for_WPF_2011_3_1205_DEV_hotfix.

When I set RadBusyIndicator.IsBusy="True" and operating system is running a cpu hungry process, I can click on the RadBusyIndicator content before RadBusyIndicator show busy content (refer attachment).

Please let me know how to resolve the issue.

MainWindow.xaml

<Window x:Class="RadBusyIndicatorDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        Title="MainWindow" Height="350" Width="525" WindowStartupLocation="CenterScreen">

    <StackPanel>
        <TextBlock x:Name="textBlock" />
        <telerik:RadBusyIndicator IsBusy="True">
            <StackPanel>
                <Button Content="Button1" Click="Button_Click"/>
                <telerik:RadGridView ItemsSource="{Binding Items}" Height="300" />
            </StackPanel>
        </telerik:RadBusyIndicator>
    </StackPanel>
</Window>

MainWindow.xaml.cs

namespace RadBusyIndicatorDemo
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            this.DataContext = new MainViewModel();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            this.textBlock.Text = "clicked!"; // shouldn't happen
        }
    }
}

[Ivo]

Hello Balázs,

Setting the RadBusyIndicator property DisplayAfter to 0 will do the trick for you.

Greetings, Ivo
the Telerik team