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How to say XAML <Button Height="Auto"/> in code behind?

How can you set Height="*" and Height="Auto" in code behind?

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Edward Tanguay Avatar asked Sep 30 '09 12:09

Edward Tanguay


1 Answers

For setting Height = "Auto" on most controls, you want to assign the value with double.NaN.

Example:

element.Height = double.NaN; 

Setting Width/Height = "*" ( is a slightly different matter, since it only applies to a select few elements (ColumnDefinition and RowDefinition for example). The type of the Width/Height value is GridLength, rather than double.

Example (more are given on this MSDN page:

column1.Width = new GridLength(1, GridUnitType.Auto); // Auto column2.Width = new GridLength(1, GridUnitType.Star); // * 
like image 148
Noldorin Avatar answered Sep 21 '22 22:09

Noldorin