DataGridView.AutoResizeRowHeadersWidth Method (DataGridViewRowHeadersWidthSizeMode)

Note: This method is new in the .NET Framework version 2.0.

Adjusts the width of the row headers using the specified size mode.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public void AutoResizeRowHeadersWidth (
	DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode
public void AutoResizeRowHeadersWidth (
	DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode
public function AutoResizeRowHeadersWidth (
	rowHeadersWidthSizeMode : DataGridViewRowHeadersWidthSizeMode



One of the DataGridViewRowHeadersWidthSizeMode values.

Exception typeCondition


rowHeadersWidthSizeMode has the value EnableResizing or DisableResizing.


rowHeadersWidthSizeMode is not a valid DataGridViewRowHeadersWidthSizeMode value.

This method is useful if you want to control when the row headers resize. The width of the row headers is adjusted only once per method call; if the contents of the row headers later change, the row headers will not automatically adjust. To set the row headers to automatically resize when their contents change, use the RowHeadersWidthSizeMode property.

This method lets you specify a sizing mode that calculates the new width based on values in a limited set of headers, such as those in displayed rows only. This improves performance when the control contains a large number of rows.

For more information about programmatic resizing, see Sizing Options in the Windows Forms DataGridView Control.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0

Community Additions