private void button4_Click(object sender, EventArgs e) // save button
{
String n = textBox2.Text;
String a = textBox3.Text;
String p = textBox4.Text;
String em = textBox5.Text;
String w = textBox6.Text;
if (String.IsNullOrEmpty(n) || String.IsNullOrEmpty(p))
{
MessageBox.Show("empty name or phone");
return;
}
currCustomer.Update(n, a, p, em, w);
LoadAll();
}
