BaseView.MouseDown Event

Occurs when the mouse pointer is over a View and a mouse button is pressed.

Namespace: DevExpress.XtraGrid.Views.Base

Assembly: DevExpress.XtraGrid.v22.2.dll

NuGet Package: DevExpress.Win.Grid

Declaration

C#

[DXCategory("Mouse")]
public event MouseEventHandler MouseDown

VB.NET

<DXCategory("Mouse")>
Public Event MouseDown As MouseEventHandler

Event Data

The MouseDown event's data class is MouseEventArgs. The following properties provide information specific to this event:

Property	Description
Button	Gets which mouse button was pressed.
Clicks	Gets the number of times the mouse button was pressed and released.
Delta	Gets a signed count of the number of detents the mouse wheel has rotated, multiplied by the WHEEL_DELTA constant. A detent is one notch of the mouse wheel.
Location	Gets the location of the mouse during the generating mouse event.
X	Gets the x-coordinate of the mouse during the generating mouse event.
Y	Gets the y-coordinate of the mouse during the generating mouse event.

Remarks

If you handle the MouseDown event for a detail View, the event sender identifies the clone that has actually raised the event.

A common practice of handling the MouseDown event is to perform specific actions in response to pressing a specific View element. Refer to the Hit Information help topic for information on how to identify the element located under the mouse pointer.

C#

using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;

private void gridView1_MouseDown(object sender, MouseEventArgs e) {
    GridHitInfo info = (sender as GridView).CalcHitInfo(e.Location);
    int rowHandle = info.InRow ? info.RowHandle : GridControl.InvalidRowHandle;
    MessageBox.Show(rowHandle.ToString());
}

VB.NET

Imports DevExpress.XtraGrid
Imports DevExpress.XtraGrid.Views.Grid
Imports DevExpress.XtraGrid.Views.Grid.ViewInfo

Private Sub gridView1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles gridView1.MouseDown
    Dim info As GridHitInfo = (TryCast(sender, GridView)).CalcHitInfo(e.Location)
    Dim rowHandle As Integer = If(info.InRow, info.RowHandle, GridControl.InvalidRowHandle)
    MessageBox.Show(rowHandle.ToString())
End Sub