C#的问题 请好心人帮我看看

Question

前台代码

 <input type="text" id="md_dm"  >  //输入框
<input type="button" id="Button2"  value="查询" >   //按钮

调用后台方法的代码：

  $("#Button2").click(function () {

            var md_mc = $("#md_dm").val();
            alert(md_mc);
            search(md_mc);
        });

后台方法：

   public  bool search(string s)
        {

            string md = s;
            String sqlconn = "uid=sa;pwd=1;database=ZJK;server=XXXXX-PC";
            SqlConnection conn = new SqlConnection(sqlconn);
            conn.Open();

string sqlstr = "SELECT [md_mc],[md_dm] FROM [tmd] where [md_mc]= '" + md + "'";                              SqlDataAdapter sda = new SqlDataAdapter(sqlstr, conn);
            DataTable dt = new DataTable();
            sda.Fill(dt);//填充数据到dt
            GridView1.DataSource = dt;
            GridView1.DataBind();//将数据显示到gridview1
            if (dt == null)
                return false;
            else
                return true;
        }

Answer 1

你太厉害了，前台与后台都没有分清原理，用AJAX调用页面吧