private void btnAdd_Click(object sender, EventArgs e)
        {
            frmAddModel add = new frmAddModel(User, "");

            add.ShowDialog();
            btnSearch_Click(sender, e);
        }
 private void btnUpdate_Click(object sender, EventArgs e)
 {
     try {
         if (dgvModel.RowCount > 0)
         {
             string      modelId  = dgvModel.Rows[dgvModel.CurrentRow.Index].Cells["model_id"].Value.ToString();
             string      modelsub = dgvModel.Rows[dgvModel.CurrentRow.Index].Cells["model_sub_cd"].Value.ToString();
             frmAddModel add      = new frmAddModel(User, modelId);
             add.ShowDialog();
             btnSearch_Click(sender, e);
         }
         else
         {
             MessageBox.Show("Choose a Model Sub", "Note", MessageBoxButtons.OK, MessageBoxIcon.Information);
         }
     }
     catch
     { return; }
 }