//��ʾѡ���Ŀ���ж���
protected void ddlCourse_SelectedIndexChanged(object sender, EventArgs e)
{
JudgeProblemmr judgeproblem = new JudgeProblemmr(); //������ѡ�����
DataSet ds = judgeproblem.QueryJudgeProblem(int.Parse(ddlCourse.SelectedValue));//���ݿ��Կ�Ŀ��ѯ��ѡ����Ϣ
GridView1.DataSource = ds.Tables[0].DefaultView; //ΪGridView�ؼ�ָ������Դ
GridView1.DataBind(); //������
}
protected void GridViewBind()
{
JudgeProblemmr judgeproblem = new JudgeProblemmr(); //����������
DataSet ds = judgeproblem.QueryJudgeProblem(int.Parse(ddlCourse.SelectedValue));//���ݿ��Կ�Ŀ��ѯ�ж�����Ϣ
GridView1.DataSource = ds.Tables[0].DefaultView; //ΪGridView�ؼ�ָ������Դ
GridView1.DataBind(); //������
}