private void btnAdd_Click(object sender, EventArgs e)
{
if (cboCourse.SelectedValue == null || txtTitle.Text == "" || txtAnswerA.Text == "" || txtAnswerB.Text == "" || txtAnswerC.Text == "" || txtAnswerD.Text == "")
{
MessageBox.Show("请输入完整的题目信息！");
}
else if (cboAnswer.Text == "")
{
MessageBox.Show("请选择正确答案！");
}
else
{
try
{
SingleMultiProblem smp = new SingleMultiProblem(cboCourse.SelectedValue.ToString(), txtTitle.Text, txtAnswerA.Text, txtAnswerB.Text, txtAnswerC.Text, txtAnswerD.Text, cboAnswer.Text);
QuestionBll.AddsingleProblem(smp);
MessageBox.Show("添加成功！");
this.Close();
}
catch (Exception ee)
{
MessageBox.Show("添加失败！" + ee);
throw;
}
}
}