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DataGridView.ColumnDividerDoubleClick Event

Occurs when the user double-clicks a divider between two columns.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public event DataGridViewColumnDividerDoubleClickEventHandler ColumnDividerDoubleClick
/** @event */
public void add_ColumnDividerDoubleClick (DataGridViewColumnDividerDoubleClickEventHandler value)

/** @event */
public void remove_ColumnDividerDoubleClick (DataGridViewColumnDividerDoubleClickEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.

You can use this event to customize the automatic sizing behavior that occurs when a user double-clicks a column divider. For example, you can handle this event to programmatically resize columns based only on the content in the rows that are currently visible, avoiding a performance impact with the default behavior when working with a large number of rows.

The column DividerWidth property does not extend the area in which a user can double-click. If the width of a divider has been increased through the use of this property, this event occurs when the user double-clicks the boundary between the divider and the adjacent column.

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the ColumnDividerDoubleClick event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing System.Windows.Forms.MessageBox.Show with System.Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type DataGridView named DataGridView1. Then ensure that the event handler is associated with the ColumnDividerDoubleClick event.

private void DataGridView1_ColumnDividerDoubleClick(Object sender, DataGridViewColumnDividerDoubleClickEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "ColumnIndex", e.ColumnIndex );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Handled", e.Handled );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Button", e.Button );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Clicks", e.Clicks );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "X", e.X );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Y", e.Y );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Delta", e.Delta );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Location", e.Location );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "ColumnDividerDoubleClick Event" );
}

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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