private void button1_Click(object sender, EventArgs e)
{
if (YZ())
{
if (string.IsNullOrEmpty(Xh))
{
Lst.Add(new Student()
{
ID = textBox1.Text.Trim(),
Name = textBox2.Text.Trim(),
Age = int.Parse(textBox3.Text.Trim()),
GenderText = textBox4.Text.Trim()
});
}
else
{
Student st1 = Lst.FirstOrDefault(c => c.ID == textBox1.Text);
st1.Name = textBox2.Text.Trim();
st1.Age = int.Parse(textBox3.Text.Trim());
st1.GenderText = textBox4.Text.Trim();
}
if (Handler != null)
{
Handler();
}
}
Close();
}