ExtensionMethods.FindDescendant<T> Method
Helper method that finds the first descendant of a given Type in the visual tree. USE SPARINGLY. This method walks all the tree until a result is found. Use of this method on large trees or excessively will introduce a performance hit.
Namespace: Microsoft.VisualStudio.PlatformUI
Assembly: Microsoft.VisualStudio.Shell.10.0 (in Microsoft.VisualStudio.Shell.10.0.dll)
Syntax
‘선언
<ExtensionAttribute> _
Public Shared Function FindDescendant(Of T As Class) ( _
obj As DependencyObject _
) As T
‘사용 방법
Dim obj As DependencyObject
Dim returnValue As T
returnValue = obj.FindDescendant()
public static T FindDescendant<T>(
this DependencyObject obj
)
where T : class
[ExtensionAttribute]
public:
generic<typename T>
where T : ref class
static T FindDescendant(
DependencyObject^ obj
)
static member FindDescendant :
obj:DependencyObject -> 'T when 'T : not struct
JScript does not support generic types or methods.
Type Parameters
- T
The type of descendant to find.
Parameters
- obj
Type: System.Windows.DependencyObject
The object at which to begin searching.
Return Value
Type: T
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type DependencyObject. 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).
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.