WPF - Bind UserControl visibility to a property
binding, c#, controltemplate, wpf, xaml
Solution
I would recommend using a `IValueConverter` to accept your boolean, and return a member of Visibility enumeration.
Here is a good example of one: http://jeffhandley.com/archive/2008/10/27/binding-converters---visibilityconverter.aspx
The XAML would look like this:
First you define a resource for the converter (put this in a resource dictionary):
<local:BooleanToVisibilityConverter x:Key="myBoolToVisibilityConverter" />
And then change your template like this:
<ControlTemplate x:Key="ListViewControlTemplate1" TargetType="{x:Type ListView}">
<Grid Visibility="{Binding IsLoading, Converter={StaticResource myBoolToVisibilityConverter}}">
<local:ActivityIndicatorControl
HorizontalAlignment="Center"
Height="Auto"
Margin="0"
VerticalAlignment="Center"/>
</Grid>
</ControlTemplate>
Problem
I have a ListView bound to ObservableCollection. Data are loaded from the internet and then added to collection. The download takes few seconds and I want to indicate user that the data is loading. I created an UserControl that indicates activity. I placed it inside of ControlTemplate. ``` <ControlTemplate x:Key="ListViewControlTemplate1" TargetType="{x:Type ListView}"> <Grid> <local:ActivityIndicatorControl HorizontalAlignment="Center" Height="Auto" Margin="0" VerticalAlignment="Center"/> </Grid> </ControlTemplate> ``` I would like to bind Visibility of `ActivityIndicatorControl` to a property, let's say `bool IsLoading` and set it to Visible/Collapsed correspondingly. Thanks!