private void butView_Click(object sender, EventArgs e)
 {
     Adding_Forms.Staff_Add add = new Adding_Forms.Staff_Add("Search");
     add.ShowDialog();
 }
 private void butDelete_Click(object sender, EventArgs e)
 {
     Adding_Forms.Staff_Add add = new Adding_Forms.Staff_Add("Delete");
     add.ShowDialog();
 }