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DataGridView.ColumnStateChanged Event

Occurs when a column changes state, such as gaining or losing focus.

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

public event DataGridViewColumnStateChangedEventHandler ColumnStateChanged
/** @event */
public void add_ColumnStateChanged (DataGridViewColumnStateChangedEventHandler value)

/** @event */
public void remove_ColumnStateChanged (DataGridViewColumnStateChangedEventHandler value)

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

This event is raised when the value of one of the following column properties changes for a DataGridViewColumn in the control:

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 ColumnStateChanged 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 ColumnStateChanged event.

private void DataGridView1_ColumnStateChanged(Object sender, DataGridViewColumnStateChangedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Column", e.Column );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "StateChanged", e.StateChanged );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "ColumnStateChanged 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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