Home > DeveloperSection > Forums > WPF window reports old left property after DragMove
Goti Bandu

Total Post:119

Posted on    August-19-2014 3:10 AM


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I have this issue, after calling DragMove(), the window reports its old Left property as if DragMove did not change it at all.

so lets say the window's left is currently 100 pixels, i move the window using DragMove():

private void Window_MouseDown(object sender, MouseButtonEventArgs e)


    if (e.LeftButton == MouseButtonState.Pressed)





after which i click a button an show the new Left position of the window:

private void SomeButton_Click(object sender, RoutedEventArgs e)




however, the Message box still shows '100' as if the window didnt move at all although it did...

what am i missing?

Pravesh Singh

Total Post:412

Posted on    August-19-2014 3:32 AM

Hi Goti, 
try this:

DoubleAnimation _leftAnimation = new DoubleAnimation();

//...animation settings...

_leftAnimation.Completed += delegate(object animSender, EventArgs animE)


    BeginAnimation(Window.LeftProperty, null);


this.BeginAnimation(LeftProperty, _leftAnimation);

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