Question

I have applied TranslateTransform on a control, but the control’s margin remains the same.

var margin = this.Margin;
this.RenderTransform = new TranslateTransform(diff.X, diff.Y);
if (diff.X != 0 && diff.Y != 0)
{
    if (margin == this.Margin)
        MessageBox.Show("Margins are equal");            
}

I want margin to be “updated” after Transform. How can I do that?

Answer 1

You can’t do it automatically, because RenderTransform will not affect any Layout properties.

From MSDN

RenderTransform – A transform that modifies the appearance of the
element but is applied after the layout pass is complete. By using the
RenderTransform property instead of the LayoutTransform property, you
can obtain performance benefits.

And you can’t use a LayoutTransform instead.

Note that, when they are used with the LayoutTransform property,
TranslateTransform objects appear to have no effect on elements.