private void btnAdd_Click(object sender, EventArgs e)
{
if (cboCourse.SelectedValue == null || txtFrontTitle.Text == "" || txtbackTitle.Text == "")
{
MessageBox.Show("请输入完整的题目信息！");
}
else if (txtAnswer.Text == "")
{
MessageBox.Show("请输入正确答案！");
}
else
{
try
{
fillBlankProblem fbp = new fillBlankProblem(cboCourse.SelectedValue.ToString(), txtFrontTitle.Text, txtbackTitle.Text, txtAnswer.Text);
QuestionBll.AddfillBlankProblem(fbp);
MessageBox.Show("添加成功！");
this.Close();
}
catch (Exception ee)
{
MessageBox.Show("添加失败！" + ee);
throw;
}
}
}