DataGridView.OnMouseClick Method (MouseEventArgs)


Raises the MouseClick event.

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

protected override void OnMouseClick(
	MouseEventArgs e


Type: System.Windows.Forms.MouseEventArgs

A MouseEventArgs that contains the event data.

Exception Condition

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 NIB: Raising an Event.

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

The following code example demonstrates the use of this method.

// Override OnMouseClick in a class derived from DataGridViewCell to 
// enter edit mode when the user clicks the cell. 
protected override void OnMouseClick(DataGridViewCellMouseEventArgs e)
    if (base.DataGridView != null)
        Point point1 = base.DataGridView.CurrentCellAddress;
        if (point1.X == e.ColumnIndex &&
            point1.Y == e.RowIndex &&
            e.Button == MouseButtons.Left &&
            base.DataGridView.EditMode !=

.NET Framework
Available since 2.0
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