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Scroll Events
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This is a migrated thread and some comments may be shown as answers.
Chris Evans
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Chris Evans asked on 25 Aug 2010, 04:27 PM
Hello, I am using the latest v.2010.2.812.1040 controls and was wondering if I can attach events to the scroll button clicks of the RadTabControl.  Any help would be appreciated, thank you.

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Kiril Stanoev
Telerik team
answered on 30 Aug 2010, 12:36 PM
Hi Chris,

There is no scrolling event exposed, but you can use the VisualTreeHelper class to find the left and right scroll buttons.

public MainPage()
{
    InitializeComponent();
 
    // populate the TabControl with some items to force the scroll button to appear
    this.tabControl1.ItemsSource = Enumerable.Range(0, 50);
 
    this.Loaded += new RoutedEventHandler(MainPage_Loaded);
}
 
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
    this.Dispatcher.BeginInvoke(() =>
    {
        // Get the first element in RadTabControl's visual tree
        var root = VisualTreeHelper.GetChild(this.tabControl1, 0) as Panel;
 
        // Find the LeftScrollButtonElement and RightScrollButtonElement
        RepeatButton leftScrollButtonElement = root.FindName("LeftScrollButtonElement") as RepeatButton;
        Debug.Assert(leftScrollButtonElement != null);
        RepeatButton rightScrollButtonElement = root.FindName("RightScrollButtonElement") as RepeatButton;
        Debug.Assert(rightScrollButtonElement != null);
 
        // Subscribe to their click event
        leftScrollButtonElement.Click += new RoutedEventHandler(LeftScrollButtonElement_Click);
        rightScrollButtonElement.Click += new RoutedEventHandler(RightScrollButtonElement_Click);
    });
}
 
private void RightScrollButtonElement_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show("RightScrollButton clicked");
}
 
private void LeftScrollButtonElement_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show("LeftScrollButton clicked");
}

Give it a try and let me know if this helps.

Sincerely yours,
Kiril Stanoev
the Telerik team
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Chris Evans
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Kiril Stanoev
Telerik team
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