How to get a Grid column width in pixels in WPF?

Question

Column widths are specified in different ways (Stars, Auto etc) How to get the width in pixels of a specific column?

GridLength l=tip.basis.ColumnDefinitions[0].Width;

Answer 1

You can use the ActualWidth or ActualHeight property of elements to get the width/height of elements. This answer describes the difference between `'ActualWidth' and 'Width'.

So in the above example it would be:

Double width = tip.basis.ColumnDefinitions[0].ActualWidth;

And also keep in mind that WPF uses Device Independent Pixels, as described in this answer.

Answer 2

The ActualWidth property should provide the width of the column in Pixels

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