Long press on a button

[Datafyer]

I have a few RadButton controls where I would like a different command to execute if the user "long presses" on the button.

For instance a single simple click would do 1 thing and a long click and hold then release would do something else.

How would I do that?

[Dinko | Tech Support Engineer]

Hello,

To achieve your scenario you can use the PreviewMouseDown and PreviewMouseUp events of the RadButton. In the PreviewMouseDown event handler you can start a timer. In the PreviewMouseUp you can check how long the timer have run and if it is more than a second you can execute your long press logic.

public partial class MainWindow : Window
{
    DispatcherTimer timer;
    double elapsedTime = 0;

    public MainWindow()
    {
        InitializeComponent();
        timer = new DispatcherTimer();
        timer.Interval = new TimeSpan(0,0,0,0,100);
        timer.Tick += Timer_Tick;
    }

    private void Timer_Tick(object sender, EventArgs e)
    {
        elapsedTime += 1;
    }

    private void RadButton_MouseDown(object sender, MouseButtonEventArgs e)
    {
        timer.Start();
    }

    private void RadButton_MouseUp(object sender, MouseButtonEventArgs e)
    {
        timer.Stop();
        if(elapsedTime >1)
        {
            // execute long press logic
        }
         elapsedTime = 0;
    }
}

You can modify the timer so it fit in your application.

Regards,
Dinko
Progress Telerik

[Datafyer]

Thanks,