//addButton_Click Action
private void addButton_Click(object sender, EventArgs e)
{
//Check UNIQUE
if (_customerManager.IsNameExists(customerNameTextBox.Text))
{
MessageBox.Show(customerNameTextBox.Text + " Already Exists!");
return;
}
bool isAdded = _customerManager.AddCustomerInfo(customerNameTextBox.Text, customerAddressTextBox.Text, contactTextBox.Text);
if (isAdded)
{
MessageBox.Show("Saved");
showDataGridView.DataSource = _customerManager.Display();
}
else
{
MessageBox.Show("Not Saved");
}
}