private void btnAdd_Click(object sender, EventArgs e)
 {
     frmAddModifyVendor addModifyVendorForm = new frmAddModifyVendor();
     addModifyVendorForm.addVendor = true;
     DialogResult result = addModifyVendorForm.ShowDialog();
     if (result == DialogResult.OK)
     {
         vendor = addModifyVendorForm.vendor;
         txtVendorID.Text = vendor.VendorID.ToString();
         this.DisplayVendor();
     }
 }
        private void btnAdd_Click(object sender, EventArgs e)
        {
            frmAddModifyVendor addModifyVendorForm = new frmAddModifyVendor();

            addModifyVendorForm.addVendor = true;
            DialogResult result = addModifyVendorForm.ShowDialog();

            if (result == DialogResult.OK)
            {
                selectedVendor   = addModifyVendorForm.vendor;
                txtVendorID.Text = selectedVendor.VendorID.ToString();
                this.DisplayVendor();
            }
        }
        private void btnModify_Click(object sender, EventArgs e)
        {
            frmAddModifyVendor addModifyVendorForm = new frmAddModifyVendor();

            addModifyVendorForm.addVendor = false;
            addModifyVendorForm.vendor    = selectedVendor;
            DialogResult result = addModifyVendorForm.ShowDialog();

            if (result == DialogResult.OK || result == DialogResult.Retry)
            {
                selectedVendor = addModifyVendorForm.vendor;
                this.DisplayVendor();
            }
            else if (result == DialogResult.Abort)
            {
                txtVendorID.Text = "";
                this.ClearControls();
            }
        }
 private void btnModify_Click(object sender, EventArgs e)
 {
     frmAddModifyVendor addModifyVendorForm = new frmAddModifyVendor();
     addModifyVendorForm.addVendor = false;
     addModifyVendorForm.vendor = vendor;
     DialogResult result = addModifyVendorForm.ShowDialog();
     if (result == DialogResult.OK)
     {
         vendor = addModifyVendorForm.vendor;
         this.DisplayVendor();
     }
     else if (result == DialogResult.Retry)
     {
         this.ClearControls();
         this.GetVendor(vendor.VendorID);
     }
 }