//Insert Button
private void addButton_Click(object sender, EventArgs e)
{
if (_customerManagement.UniqueCustomerName(customerNameTextBox.Text))
{
MessageBox.Show("Name already exits");
return;
}
//add Customer
bool isAdded = _customerManagement.InsertCustomer(customerNameTextBox.Text, Convert.ToInt32(customerNoTextBox.Text), addressTextBox.Text, Convert.ToInt32(codeTextBox.Text));
if (isAdded)
{
MessageBox.Show("Saved");
}
else
{
MessageBox.Show("Not Saved");
}
//show
showDataGridView.DataSource = _customerManagement.ShowCustomerInfo();
}