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FrameworkContentElement.TryFindResource Method

Searches for a resource with the specified key, and returns that resource if found.

Namespace: System.Windows
Assembly: PresentationFramework (in presentationframework.dll)

public Object TryFindResource (
	Object resourceKey
)
public Object TryFindResource (
	Object resourceKey
)
public function TryFindResource (
	resourceKey : Object
) : Object
You cannot use methods in XAML.

Parameters

resourceKey

Key identifier of the resource to be found.

Return Value

The found resource. If no resource was found, a null reference (Nothing in Visual Basic) is returned.

If the resource is not found on the calling element, the parent tree is searched using the logical tree, in the same way that the tree would be searched if a dynamic resource reference were requested by key at run-time.

Typically you would immediately cast the return value to the type of the property that you were attempting to set with the returned resource value.

The FindResource method has similar behavior, except that it will raise an exception in the case of not finding a resource with the provided key.

The following example finds a resource as defined in markup and applies it to a certain property of an element in response to a routed event.

void SetBGByResourceTry(object sender, RoutedEventArgs e)
{
    Block b = sender as Block;
    b.Background = (Brush)this.TryFindResource("RainbowBrush");
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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