Hi

It works! Thanks very much!

Thanks,

hi,

In the code above you set the Top and Left before you place the window inside the LayoutRoot. The XamWindow doesn't know it's parent container at that time and cannot calculate how to center itself. You have to set the new Top and Left after the window is arranged inside the container.

You can try this code:

w = new XamDialogWindow();
w.StartupPosition = StartupPosition.Center;
w.Height = 500;
w.Width = 500;
LayoutRoot.Children.Add(w);
this.Dispatcher.BeginInvoke(() =>
{
    w.Top += 100;
    w.Left += 100;
});

HTH

Hi,

i want to set the top and left for initializing.so, if the code changed to

 w = new XamDialogWindow();
            w.StartupPosition = StartupPosition.Center;
            w.Height = 500;
            w.Width = 500;
            w.Top += 100;
            w.Left += 100;
            LayoutRoot.Children.Add(w);

the window is still in the center. it seems Set value for top and left doesn't work.

hi,

Even if the StartupPosition is set to Center you still can change the Top and Left of the window. I've attached a modifed version of your sample that demonstrates that.

Regards

Hi,

I know this solution. but if i set w.StartupPosition = StartupPosition.Center;  I cannot change the top and left of XamDialogWindow anymore. My purpose is open XamDialogWindow in the center but if open second, we hope there is a margin between these 2 windows, so i need to change the top and left to achieve this.