private void DBGrid_MouseDown(object sender, MouseEventArgs e)
{
if (txtEmployeeId.ReadOnly == true && e.Button == MouseButtons.Left)
{
DataGridView.HitTestInfo info = DBGrid.HitTest(e.X, e.Y);
if (info.RowIndex >= 0)
{
DataGridViewRow dr = (DataGridViewRow)DBGrid.Rows[info.RowIndex];
if (dr != null)
{
DBGrid.DoDragDrop(dr, DragDropEffects.Copy);
}
}
}
}