Posts in the 'WPF' category

Mar
11
2009

WPF: GridView Column Width Calculator



Posted in Programming and WPF

The GridView in WPF isn’t bad, but is pretty basic compared to the one in ASP.NET. There’s isn’t really a decent method for setting column width, so I wrote this converter to calculate the width needed to fill the parent ListView.

If you call it with no parameters, it’ll take up the remaining width in the ListView:

// fills remaining width in the ListView
<gridviewcolumn Width="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ListView}},Converter={StaticResource WidthConverter}}">
</gridviewcolumn>

If you use an integer as a parameter, the value will act as the minimum width

// fills remaining width in the ListView, unless the remaining width is less than the parameter
<gridviewcolumn Width="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ListView}},Converter={StaticResource WidthConverter},ConverterParameter=200}">
</gridviewcolumn>

Or, you can specify a GridView type width with an asterisk, and the percentage width of the ListView will be returned

// calculates 30% of the ListView width
<gridviewcolumn Width="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ListView}},Converter={StaticResource WidthConverter},ConverterParameter=0.3*}">
</gridviewcolumn>

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