我将如何检查错误。如果一个人输入了错误的姓名或拼写不正确,我希望 messagebox.show 显示一条消息,说明“姓名或拼写错误”
private void button1_Click(object sender, EventArgs e)
{
String Andrea;
String Brittany;
String Eric;
if (textBox1.Text == ("Andrea"))
Commission.Text = (Convert.ToDouble(textBox2.Text) / 10).ToString();
if (textBox1.Text == ("Brittany"))
Commission.Text = (Convert.ToDouble(textBox2.Text) / 10).ToString();
if (textBox1.Text ==("Eric"))
Commission.Text = (Convert.ToDouble(textBox2.Text) / 10).ToString();
{
}
}