C # DataGridView. What should I do when right-clicking RowHeader and right-clicking the menu ?,

C # DataGridView. What should I do when right-clicking RowHeader and right-clicking the menu ?,
    private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)        {            if( e.ColumnIndex==-1)            {                MessageBox.Show("This is the line Header");            }        }     private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)        {            if(e.Button==MouseButtons.Right)            {                // Add a shortcut menu            }        }Certainly, the code upstairs is not tested. Note: You need to right-click the title line and a shortcut menu appears.
Besides, CellClick does not return the right-click response. Therefore, the right-click response is only available in the CellMouseClick event. (RowHeaderMouseClick also responds, but I don't know why, my VS2005 does not respond, so it is not recommended)
Private void dgv_CellMouseClick (object sender, DataGridViewCellMouseEventArgs e)
{
// Right-click or not
If (e. Button = MouseButtons. Right)
{
// Obtain the row and column information of the click. Related Function query MSDN
DataGridView. HitTestInfo hitinfo = dgv_verify.HitTest (e. X, e. Y );
// If RowIndex <0, it is the title line.
If (hitinfo. RowIndex <0)
{
// If you only need to specify the column display menu, add the hitinfo. ColumnIndex judgment.
ContextMenuStrip1.Show (MousePosition. X, MousePosition. Y );
}
}
}

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The above code has been tested and runs normally under VS2005 and VS2008.
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