DataGridView.OnDataError Method

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

Raises the DataError event.

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

protected virtual void OnDataError (
	bool displayErrorDialogIfNoHandler,
	DataGridViewDataErrorEventArgs e
protected void OnDataError (
	boolean displayErrorDialogIfNoHandler, 
	DataGridViewDataErrorEventArgs e
protected function OnDataError (
	displayErrorDialogIfNoHandler : boolean, 
	e : DataGridViewDataErrorEventArgs



true to display an error dialog box if there is no handler for the DataError event.


A DataGridViewDataErrorEventArgs that contains the event data.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnDataError method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors When overriding OnDataError in a derived class, be sure to call the base class’s OnDataError method so that registered delegates receive the event.

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