DataGridView.OnValidating Method

Raises the Validating event.

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

protected override void OnValidating (
	CancelEventArgs e
)
protected void OnValidating (
	CancelEventArgs e
)
protected override function OnValidating (
	e : CancelEventArgs
)
Not applicable.

Parameters

e

A CancelEventArgs that contains the event data.

Exception typeCondition

Exception

Validation failed and either there is no handler for the DataError event or the handler has set the DataGridViewDataErrorEventArgs.ThrowException property to true. The exception object can typically be cast to type FormatException.

In addition to raising the Validating event, this method ends the current cell edit and validates the cell and row values.

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

The OnValidating 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 OnValidating in a derived class, be sure to call the base class's OnValidating method so that registered delegates receive the 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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