Get dimensions before adding to the bounds

You have the few options you can does this, forcing-to-call and would make all Window.Measure Window.Arrange the values to being calculated, or you can GE T those values in the Window.Loaded event. This same issue are discussed already on this question.

If you is sizing to content:

Window.Measure(new size (doublepositiveinfinity, double positiveinfinitywindow. Arrange (new rect0, 0, Window. Desiredwidth, Window. Desiredheight             

If you is using an explicit window size:

window.Measure(new Size(Width, Height));window.Arrange(new Rect(0, 0, window.DesiredWidth, window.DesiredHeight));

Or

  public  Mywindow () { loaded< Span class= "PLN" > += delegate{ //access actualwidth and ActualHeight here  }; } 
 
 
 
 just had the same issue and Just calling   TextBlock. Measure (New Size ());   aint enough. I had to use  TextBlock. Measure (New Size (double). PositiveInfinity, double. PositiveInfinity));   to get a result for   TextBlock. DesiredSize   
 
 
 
           

The key is to realize that setting it in code like this:

sp2.Margin = new System.Windows.Thickness{ Left = 5 };

is equivalent to:

sp2.Margin = new system. Windows. Thickness{ left = 5, top Span class= "pun" >= 0,  Right = 0 bottom =  0 };             

Get dimensions before adding to the bounds