void OnExpressionEditorLoaded(object sender, RoutedEventArgs e)
{
ExpressionTextBox expressionTextBox = sender as ExpressionTextBox;
Fx.Assert(expressionTextBox != null, "sender should be userControl");
//bind ExpressionProperty of Expression textbox to ModelItem.Condition
Binding b = new Binding();
ArgumentToExpressionConverter argumentToExpressionConverter = new ArgumentToExpressionConverter();
b.Converter = argumentToExpressionConverter;
b.Mode = BindingMode.TwoWay;
b.Source = this.ModelItem;
b.Path = new PropertyPath("Condition");
if (BindingOperations.GetBinding(expressionTextBox, ExpressionTextBox.ExpressionProperty) != null)
{
BindingOperations.ClearBinding(expressionTextBox, ExpressionTextBox.ExpressionProperty);
}
expressionTextBox.SetBinding(ExpressionTextBox.ExpressionProperty, b);
//bind OwnerActivityProperty of Expression textbox to ModelItem
Binding b1 = new Binding();
b1.Source = this.ModelItem;
if (BindingOperations.GetBinding(expressionTextBox, ExpressionTextBox.OwnerActivityProperty) != null)
{
BindingOperations.ClearBinding(expressionTextBox, ExpressionTextBox.OwnerActivityProperty);
}
expressionTextBox.SetBinding(ExpressionTextBox.OwnerActivityProperty, b1);
}
private void AddBindings()
{
var conv = new ArgumentToExpressionConverter();
var g = DataContext as InArgumentExpressionGroup;
if (g != null)
{
foreach (var item in g.Expressions)
{
var cp = Items.ItemContainerGenerator.ContainerFromItem(item) as ContentPresenter;
var extb = WPFTree.FindVisualChild<ExpressionTextBox>(cp);
if (extb != null)
{
var binding = new Binding
{
Path = new PropertyPath("OwnerModelItem." + item.Name),
Mode = BindingMode.TwoWay,
Converter = conv,
ConverterParameter = "In"
};
extb.SetBinding(ExpressionTextBox.ExpressionProperty, binding);
}
}
}
addBindingsScheduled = false;
}
