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ColumnDefinitionCollection.Contains Method

Determines whether a given ColumnDefinition exists within a ColumnDefinitionCollection.

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

public bool Contains(
	ColumnDefinition value


Type: System.Windows.Controls.ColumnDefinition
Identifies the ColumnDefinition that is being tested.

Return Value

Type: System.Boolean
true if the ColumnDefinition exists within the collection; otherwise false.



The following example demonstrates how to use the Contains method to determine whether a ColumnDefinition exists in a ColumnDefinitionCollection.

private void containsCol(object sender, RoutedEventArgs e)
    if (grid1.ColumnDefinitions.Contains(colDef1))
        tp3.Text = "Grid Contains ColumnDefinition colDef1";
        tp3.Text = "Grid Does Not Contain ColumnDefinition colDef1";

To view the complete sample, see How to: Manipulate Columns and Rows by Using ColumnDefinitionsCollections and RowDefinitionsCollections.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.