UIElementCollection.Contains Method (UIElement)


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Determines whether a specified element is in the UIElementCollection.

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

public virtual bool Contains(
	UIElement element


Type: System.Windows.UIElement

The element to find.

Return Value

Type: System.Boolean

true if the specified UIElement is found in the collection; otherwise, false.

The following example uses the Contains method to determine if a specific UIElement exists within a UIElementCollection.

void ContainsElement(object sender, RoutedEventArgs e)
    TextBlock txt1 = new TextBlock();
    txt1.Text = "This StackPanel contains UIElement btn1: " + sp1.Children.Contains(btn1).ToString();

.NET Framework
Available since 3.0
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