DataGrid.OnMouseDown(MouseEventArgs) Method

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Raises the MouseDown event.

C#

protected override void OnMouseDown(System.Windows.Forms.MouseEventArgs e);

Parameters

e

MouseEventArgs

A MouseEventArgs that contains data about the OnMouseDown(MouseEventArgs) event.

Examples

The following code example demonstrates the use of this member.

C#

public class MyDataGrid : DataGrid 
{
    // Override the OnMouseDown event to select the whole row
    // when the user clicks anywhere on a row.
    protected override void OnMouseDown(MouseEventArgs e) 
    {
        // Get the HitTestInfo to return the row and pass
        // that value to the IsSelected property of the DataGrid.
        DataGrid.HitTestInfo hit = this.HitTest(e.X, e.Y);
        if (hit.Row < 0)
            return;
        if (this.IsSelected(hit.Row))
            UnSelect(hit.Row);
        else
            Select(hit.Row);
    }
}

Remarks

Raising an event invokes the event handler through a delegate. For an overview, see Handling and Raising Events.

Notes to Inheritors

When overriding OnMouseDown(MouseEventArgs) in a derived class, be sure to call the base class's OnMouseDown(MouseEventArgs) method.

Applies to