Binding.Source Property

public:
 property System::Object ^ Source { System::Object ^ get(); void set(System::Object ^ value); };

public object Source { get; set; }

member this.Source : obj with get, set

Public Property Source As Object

Property Value

The object to use as the binding source.

Examples

The following example uses a Person object with a string property named PersonName that is defined in the SDKSample namespace, as the first highlighted line shows. In the highlighted line that contains the element, it instantiates the Person object with a PersonName property value of Joe. This is done in the Resources section and assigned an x:Key.

  
    
    
    
    
  
  
    
      Enter a Name:
      
        
          
        
      
      
      The name you entered:
      
    
  

The highlighted line that contains the elements shows how to bind to the PersonName property. As a result, the TextBlock control appears with the value "Joe".

In the following example, the Source values of the Binding objects are set to the static property Application.Current:

Remarks

By default, bindings inherit the data context specified by the DataContext property, if one has been set. However, the Source property is one of the ways you can explicitly set the source of a Binding and override the inherited data context. If you do not need the functionality of establishing a scope in which several properties inherit the same data context, you can use the Source property instead of the DataContext property.

The Binding.ElementName and Binding.RelativeSource properties also enable you to set the source of the binding explicitly. However, only one of the three properties, ElementName, Source, and RelativeSource, should be set for each binding, or a conflict can occur. This property throws an exception if there is a binding source conflict.

To clear this property, set it to DependencyProperty.UnsetValue.

XAML Attribute Usage