public void ForceSourceToNull ()
{
Person source = new Person { Age = 7 };
TextBlock block = new TextBlock();
block.SetBinding(TextBlock.TextProperty, new Binding {
Path=new PropertyPath("Age"),
Mode = BindingMode.TwoWay,
TargetNullValue = "",
});
block.DataContext = source;
block.Text = "";
Assert.IsNull(source.Age, "#1");
}
static void Create(out Person source, out TextBlock target1, out TextBlock target2)
{
source = new Person { Age = 10 };
target1 = new TextBlock();
target2 = new TextBlock();
target1.SetBinding(TextBlock.TextProperty, new Binding
{
FallbackValue = 99,
Path = new PropertyPath("Age"),
Mode = BindingMode.TwoWay,
Source = source,
StringFormat = "C",
TargetNullValue = "66",
});
target2.SetBinding(TextBlock.TextProperty, new Binding
{
FallbackValue = 88,
Path = new PropertyPath("Age"),
Mode = BindingMode.TwoWay,
Source = source,
StringFormat = "C",
TargetNullValue = "77",
});
}
