Question

I define “DisplayHeight” in my App.xaml file here:

<Application.Resources>
    <sys:Int32 x:Key="DisplayHeight">534</sys:Int32> 
</Application.Resources>

I try to set my ListView Height here:

<Grid>
    <ListView x:Name="myListView" Height="{StaticResource DisplayHeight}"/>
</Grid>

This results in the following exception:

{"'534' is not a valid value for property 'Height'."}

I don’t understand why this wouldn’t work. I can manually set the height to 534 and it works. Also, I read that a controls “Height” is an “Int32” so it shouldn’t be a type problem…

Answer 1

Height is a double, so you need to declare it as such if you want to use StaticResource directly.

Alternatively you could wrap it in a Binding which uses type converters:

Height="{Binding Source={StaticResource DisplayHeight}}"