Is there a way to specify a custom dependency property's default binding mode and update trigger?
19,649
Solution 1
When registering the property, initialize your metadata with:
new FrameworkPropertyMetadata
{
BindsTwoWayByDefault = true,
DefaultUpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
}
Solution 2
In the Dependency Property declaration it would look like this:
public static readonly DependencyProperty IsExpandedProperty =
DependencyProperty.Register("IsExpanded", typeof(bool), typeof(Dock),
new FrameworkPropertyMetadata(true,
FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
OnIsExpandedChanged));
public bool IsExpanded
{
get { return (bool)GetValue(IsExpandedProperty); }
set { SetValue(IsExpandedProperty, value); }
}
Author by
Justin
I am very new to programming. Learning C# on the internet. Am working on a minimalistic text editor.
Updated on June 24, 2022Comments
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Justin about 2 years
I would like to make it so that, as default, when I bind to one of my dependency properties the binding mode is two-way and update-trigger is property changed. Is there a way to do this?
Here is an example of one of my dependency properties:
public static readonly DependencyProperty BindableSelectionLengthProperty = DependencyProperty.Register( "BindableSelectionLength", typeof(int), typeof(ModdedTextBox), new PropertyMetadata(OnBindableSelectionLengthChanged));