private void CreateClient_Click(object sender, EventArgs e)
 {
     using (SqlConnection Conect = new SqlConnection(@"Data Source=DESKTOP-78L61PQ\SQLEXPRESS;
     Initial Catalog=Sistema de Prestamos; Integrated Security=True;"))
     {
         Conect.Open();
         SqlCommand cmd = new SqlCommand("addClients", Conect);
         cmd.CommandType = System.Data.CommandType.StoredProcedure;
         cmd.Parameters.AddWithValue("@Nombre", ClientName.Text);
         cmd.Parameters.AddWithValue("@Direccion", Dir.Text);
         cmd.Parameters.AddWithValue("@Telefono", Pho.Text);
         cmd.ExecuteNonQuery();
         ClientName.Clear();
         Dir.Clear();
         Pho.Clear();
     }
 }