ExtensionMethods.FindDescendants<T> Method
Find all visual descendants of this dependency object of a particular type. USE SPARINGLY. This method walks the entire tree. 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
'宣言
<ExtensionAttribute> _
Public Shared Function FindDescendants(Of T As Class) ( _
obj As DependencyObject _
) As IEnumerable(Of T)
'使用
Dim obj As DependencyObject
Dim returnValue As IEnumerable(Of T)
returnValue = obj.FindDescendants()
public static IEnumerable<T> FindDescendants<T>(
this DependencyObject obj
)
where T : class
[ExtensionAttribute]
public:
generic<typename T>
where T : ref class
static IEnumerable<T>^ FindDescendants(
DependencyObject^ obj
)
static member FindDescendants :
obj:DependencyObject -> IEnumerable<'T> when 'T : not struct
JScript does not support generic types or methods.
Type Parameters
- T
Parameters
- obj
Type: System.Windows.DependencyObject
Return Value
Type: System.Collections.Generic.IEnumerable<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.