/// <summary>
/// Creates a binding on a <see cref="Parameter"/>.
/// </summary>
/// <param name="target">The target to which the message is applied.</param>
/// <param name="parameter">The parameter object.</param>
/// <param name="elementName">The name of the element to bind to.</param>
/// <param name="path">The path of the element to bind to.</param>
/// <param name="bindingMode">The binding mode to use.</param>
public static void BindParameter(System.Windows.FrameworkContentElement target, Parameter parameter, string elementName, string path, BindingMode bindingMode)
{
var element = elementName == "$this"
? target
: BindingScope.GetNamedElements(target).FindName(elementName);
if (element == null)
{
return;
}
if (string.IsNullOrEmpty(path))
{
path = ConventionManager.GetElementConvention(element.GetType()).ParameterProperty;
}
#if WinRT
var binding = new Binding
{
Path = new PropertyPath(path),
Source = element,
Mode = bindingMode
};
#else
var binding = new Binding(path)
{
Source = element,
Mode = bindingMode
};
#endif
#if (SILVERLIGHT && !SL5)
var expression = (BindingExpression)BindingOperations.SetBinding(parameter, Parameter.ValueProperty, binding);
var field = element.GetType().GetField(path + "Property", BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy);
if (field == null)
{
return;
}
ConventionManager.ApplySilverlightTriggers(element, (DependencyProperty)field.GetValue(null), x => expression, null, null);
#else
#if !WinRT
binding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
#endif
BindingOperations.SetBinding(parameter, Parameter.ValueProperty, binding);
#endif
}
///<summary>
/// Checks if the <see cref="ActionMessage" /> -Target was set.
///</summary>
///<param name="element"> DependencyObject to check </param>
///<returns> True if Target or TargetWithoutContext was set on <paramref name="element" /> </returns>
public static bool HasTargetSet(DependencyObject element)
{
if (GetTarget(element) != null || GetTargetWithoutContext(element) != null)
{
return(true);
}
var frameworkElement = element as FrameworkElement;
if (frameworkElement == null)
{
return(false);
}
return(ConventionManager.HasBinding(frameworkElement, TargetProperty) ||
ConventionManager.HasBinding(frameworkElement, TargetWithoutContextProperty));
}
