} //else 結尾
private void btnsearch_Click(object sender, EventArgs e)
{
a6StuCls student = new a6StuCls();
if (textname.Text == string.Empty)
{
MessageBox.Show("請輸入", "姓名");
textname.Text = "";
textname.Focus();
}
string subch = "";
string subeng = "";
string subma = "";
bool check = false;
foreach (a6StuCls x in studentlist)// x在studentlist裡
{
if (x.stuName == textname.Text)
{
student.stuName = x.stuName;
student.stuChinese = x.stuChinese;
student.stuEnglish = x.stuEnglish;
student.stuMath = x.stuMath;
check = !check;
break;
}
}
if (check && student.stuName == textname.Text)
{
if (student.stuChinese < 60)
{
subch = "，不及格";
}
if (student.stuEnglish < 60)
{
subeng = "，不及格";
}
if (student.stuMath < 60)
{
subma = "，不及格";
}
labelsingle.Text = $"\n查詢結果：\n" +
$"姓名：{student.stuName}\n" +
$"國文：{student.stuChinese}{subch}\n" +
$"英文：{student.stuEnglish}{subeng}\n" +
$"數學：{student.stuMath}{subma}" +
$"\n平均：{Math.Round((student.stuMath + student.stuChinese + student.stuEnglish) / 3)}" +
$"\n------------------------------------------\n";
}
else
{
MessageBox.Show("找不到學生成績", "錯誤");
}
}
private void btnkeyIN_Click(object sender, EventArgs e)//輸入成績
{
checknull();
bool check = false;
double schinese, smath, seng;
if (double.TryParse(textchinese.Text, out schinese) == false)
{
MessageBox.Show("請輸入數字", "國文成績");
textchinese.Text = "";
textchinese.Focus();
} //輸入國文成績判斷格式
else if (double.TryParse(textenglish.Text, out smath) == false)
{
MessageBox.Show("請輸入數字", "英文成績");
textenglish.Text = "";
textenglish.Focus();
} //輸入英文成績判斷格式
else if (double.TryParse(textmath.Text, out seng) == false)
{
MessageBox.Show("請輸入數字", "數學成績");
textmath.Text = "";
textmath.Focus();
} //輸入數學成績判斷格式
foreach (a6StuCls x in studentlist)
{
if (x.stuName == textname.Text)
{
MessageBox.Show("重複輸入", "學生成績");
check = !check;
break;
}
}
if (check == false)
{
checknull();
a6StuCls student = new a6StuCls();
student.stuName = textname.Text;
student.stuChinese = double.Parse(textchinese.Text);
student.stuMath = double.Parse(textmath.Text);
student.stuEnglish = double.Parse(textenglish.Text);
studentlist.Add(student);
dataGridView1.Refresh();
dataGridView1.DataSource = studentlist;
}
} //else 結尾
