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DataGridView.AutoResizeColumns Method (DataGridViewAutoSizeColumnsMode)

Adjusts the width of all columns using the specified size mode.

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

public void AutoResizeColumns(
	DataGridViewAutoSizeColumnsMode autoSizeColumnsMode
)

ExceptionCondition
InvalidOperationException

autoSizeColumnsMode has the value ColumnHeader and ColumnHeadersVisible is false.

ArgumentException

autoSizeColumnsMode has the value None or Fill.

InvalidEnumArgumentException

autoSizeColumnsMode is not a valid DataGridViewAutoSizeColumnsMode value.

This method is useful if you want to control when columns resize. The column widths are adjusted only once per method call; if the contents of the columns later change, the columns will not automatically adjust. To resize a specific column, use the AutoResizeColumn method. To set the columns to automatically resize whenever their contents change, use the AutoSizeColumnsMode property or the column AutoSizeMode property.

This overload lets you specify a sizing mode that calculates the new widths based on values in a limited set of cells, 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.

The following code example resizes all columns to fit the contents of the columns and the column headers. This code example is part of a larger example provided in How to: Programmatically Resize Cells to Fit Content in the Windows Forms DataGridView Control.

private void SizeAllColumns(Object sender, EventArgs e)
{
    dataGridView1.AutoResizeColumns(
        DataGridViewAutoSizeColumnsMode.AllCells);
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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