C# 如何在后面的代码中说 XAML <Button Height="Auto"/>？
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How to say XAML <Button Height="Auto"/> in code behind?
提问by Edward Tanguay
How can you set Height="*"and Height="Auto"in code behind?
你怎么能在后面的代码中设置Height="*"和Height="Auto"？
采纳答案by Noldorin
For setting Height = "Auto"on most controls, you want to assign the value with double.NaN.
对于Height = "Auto"大多数控件的设置，您希望使用 分配值double.NaN。
Example:
例子：
element.Height = double.NaN;
Setting Width/Height = "*"( is a slightly different matter, since it only applies to a select few elements (ColumnDefinitionand RowDefinitionfor example). The type of the Width/Heightvalue is GridLength, rather than double.
设置Width/Height = "*"（是一个稍微不同的问题，因为它只适用于有选择的几个元件（ColumnDefinition和RowDefinition例如）。该类型的Width/Height值GridLength，而不是double。
Example (more are given on this MSDN page:
示例（在此 MSDN 页面上提供了更多信息：
column1.Width = new GridLength(1, GridUnitType.Auto); // Auto
column2.Width = new GridLength(1, GridUnitType.Star); // *
