DataTable dt=Get_Data();上面加一句
if(string.IsNullOrEmpty(Request.QueryString["pa_name"]))
{
Response.Write("请输入正确的姓名后再搜索!");
Response.End();
}
下拉不显示修改样式文件/e/templates/school6/style.css里面的
.top_box{padding:20px 0 0 0;background:url(images/top.gif) no-repeat 0 0;overflow:hidden;}
overflow:hidden;这句删除掉