BooleanToVisibilityConverter Class
Use the BooleanToVisibilityConverter class to convert a Boolean to and from a Visibility value. The Convert method returns Visibility.Visible when true is passed in or Visibility.Collapsed when false is passed in. Note that the Visibility.Collapsed value hides the control and does not reserve space for it in a layout. When you call the ConvertBack method and specify a reference to an object, it returns true if the object is Visible; otherwise, it returns false.
<Grid
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Background="Gray">
<Grid.Resources>
<BooleanToVisibilityConverter x:Key="converter"/>
</Grid.Resources>
<StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
<CheckBox x:Name="checkBox" Content="Show Button" Width="100"/>
<Button Content="Click" Margin="5" Visibility="{Binding ElementName=checkBox,
Path=IsChecked, Converter={StaticResource converter}}"/>
</StackPanel>
</Grid>
https://msdn.microsoft.com/en-us/library/system.windows.controls.booleantovisibilityconverter
Methods
From BaseValueConverter
Name | Description |
---|---|
TryConvert | The data binding engine calls this method when it propagates a value from the binding source to the binding target |
TryConvertBack | The data binding engine calls this method when it propagates a value from the binding target to the binding source |
Properties
BooleanToVisibilityConverter has no properties
Events
BooleanToVisibilityConverter has no events