ExtensionMethods.FindAncestor<TAncestorType> Method (Visual)

Finds the first ancestor of a given type in the logical or visual tree.

Namespace:  Microsoft.VisualStudio.PlatformUI
Assembly:  Microsoft.VisualStudio.Shell.12.0 (in Microsoft.VisualStudio.Shell.12.0.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function FindAncestor(Of TAncestorType As DependencyObject) ( _
    obj As Visual _
) As TAncestorType
public static TAncestorType FindAncestor<TAncestorType>(
    this Visual obj
)
where TAncestorType : DependencyObject
[ExtensionAttribute]
public:
generic<typename TAncestorType>
where TAncestorType : DependencyObject 
static TAncestorType FindAncestor(
    Visual^ obj
)
static member FindAncestor : 
        obj:Visual -> 'TAncestorType  when 'TAncestorType : DependencyObject
JScript does not support generic types or methods.

Type Parameters

  • TAncestorType
    The type of ancestor to find.

Parameters

  • obj
    Type: Visual

    The object at which to begin searching.

Return Value

Type: TAncestorType
The first ancestor of type T in the parent chain of obj, or nulla null reference (Nothing in Visual Basic) if no ancestor is found

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Visual. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

The type of obj is the Visual rather than the DependencyObject in order to disambiguate this method from FindAncestor(ViewElement element). If you need to find an ancestor of a non-Visual DependencyObject you should call FindAncestor<TAncestorType, DependencyObject>(obj, GetVisualOrLogicalParent) directly.

.NET Framework Security

See Also

Reference

ExtensionMethods Class

FindAncestor Overload

Microsoft.VisualStudio.PlatformUI Namespace