private void btnPrev_Click(object sender, EventArgs e)
 {
     frmEmployeeFinanceDetails form9 = new frmEmployeeFinanceDetails();
     form9.Show();
     this.Dispose();
     
 }
 public static frmEmployeeFinanceDetails getForm()
 {
     if (form == null)
     {
         form = new frmEmployeeFinanceDetails();
     }
     return form;
 }