public bool IsInvalid()
{
if (!SupplierHelpers.IsSupplierNameInvalid(txtSupName.Text))
{
txtSupName.Focus();
return(false);
}
if (!SupplierHelpers.IsAddressInvalid(txtSupAddress.Text))
{
txtSupAddress.Focus();
return(false);
}
if (!SupplierHelpers.IsPhoneInvalid(txtSupPhone.Text))
{
txtSupPhone.Focus();
return(false);
}
if (!SupplierHelpers.IsEmailInvalid(txtSupEmail.Text))
{
txtSupEmail.Focus();
return(false);
}
return(true);
}
private void GetDataGridView()
{
dataTable = SupplierHelpers.DataGridViewHelper(sqlHelper, dgvSupplier);
}