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RowDefinitionCollection.IndexOf Method

Returns the index position of a given RowDefinition within a RowDefinitionCollection.

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

public int IndexOf(
	RowDefinition value


Type: System.Windows.Controls.RowDefinition

The RowDefinition whose index position is desired.

Return Value

Type: System.Int32
The index of value if found in the collection; otherwise, -1.



The following example demonstrates how to use the IndexOf method to determine the index position of a RowDefinition within a RowDefinitionCollection.

private void insertRowAt(object sender, RoutedEventArgs e)
    rowDef1 = new RowDefinition();
    grid1.RowDefinitions.Insert(grid1.RowDefinitions.Count, rowDef1);
    tp1.Text = "RowDefinition added at index position " + grid1.RowDefinitions.IndexOf(rowDef1).ToString();

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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