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DataGridView.OnEnter Method

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

Raises the Enter event.

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

protected override void OnEnter (
	EventArgs e
)
protected void OnEnter (
	EventArgs e
)
protected override function OnEnter (
	e : EventArgs
)

Parameters

e

An EventArgs that contains the event data.

Exception typeCondition

InvalidCastException

The control is configured to enter edit mode when it receives focus, but upon entering focus, the EditType property of the current cell does not indicate a class that derives from Control and implements IDataGridViewEditingControl.

Exception

The control is configured to enter edit mode when it receives focus, but initialization of the editing cell value 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.

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

The OnEnter 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 OnEnter in a derived class, be sure to call the base class's OnEnter 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
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