//签到功能
private void button5_Click(object sender, EventArgs e)
{
if (dataGridView4.CurrentRow == null)
{
return;
}
int clsid = Convert.ToInt32(dataGridView4.CurrentRow.Cells[0].Value);
string ip = GetLocalIPAddress();
string time = DateTime.Now.ToString();
string status = "成功";
if ((int)SignManager.CheckSignUp(student.Id, clsid) == 0)
{
if (SignManager.SignUp(student, student.Name, clsid, ip, time, status))
{
MessageBox.Show(
"签到成功！",
"成功",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
Fill();
}
else
{
MessageBox.Show("签到失败！请重新选择！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("该节课已签到！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
//退课功能
private void button1_Click(object sender, EventArgs e)
{
int Cla;
try
{
Cla = Convert.ToInt32(dataGridView2.CurrentRow.Cells[0].Value);
Console.WriteLine(Cla);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
if (MessageBox.Show("确定要退课吗？", "询问", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) != DialogResult.Yes)
{
return;
}
if ((int)SignManager.CheckSignUp(student.Id, Cla) == 0)
{
if (CourseManager.DropCourse(Cla))
{
MessageBox.Show(
"退课成功！",
"成功",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
int num = Convert.ToInt32(dataGridView2.CurrentRow.Cells[7].Value) + 1;
CourseManager.UpdateCourse(num, Cla);
Fill();
}
else
{
MessageBox.Show("该课程已有成绩，退课失败！请重新选择！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("已有签到记录，退课失败！请重新选择！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}