public void WhenDisposingTheExpression_ThenTargetObjectEventIsNull()
{
this.SetUp();
var binding = new Binding("Property1");
var expression = new EventTriggeredBindingExpression<EventTargetObject, EventArgs>(this.Target, "PropertyA", "PropertyChanged", this.Source, binding);
expression.Bind();
expression.Dispose();
Assert.AreEqual(this.Target.HasEventHandler, false);
}
public void WhenBindingWithAnEvent_ThenTheSourcePropertyIsUpdated()
{
this.SetUp();
var binding = new Binding("Property1");
var expression = new EventTriggeredBindingExpression<EventTargetObject, EventArgs>(this.Target, "PropertyA", "PropertyChanged", this.Source, binding);
expression.Bind();
this.Target.PropertyA = Guid.NewGuid().ToString();
Assert.AreEqual(this.Target.PropertyA, this.Source.Property1);
}
public static IBindingExpression AddEventTriggeredBinding(this IBindingScope scope, object target, string targetPropertyName, string eventName, object source, string sourcePropertyName)
{
var expression = new EventTriggeredBindingExpression(target, targetPropertyName, eventName, source, new Binding(sourcePropertyName));
scope.Add(expression);
return expression;
}
