服务器端使用jquery过滤数据网格

Question

我想使用jquery将过滤器应用于我的网格。过滤器工作正常。但是当我应用分页时，过滤器不会搜索整个数据库。所以我使用ajax进行服务器端过滤这是我的jquery代码

  <script type="text/javascript">
    $(document).ready(function () {

        $(".filtertable tr:has(td)").each(function () {
            var t = $(this).text().toLowerCase();
            $("<td class='indexColumn'></td>")
    .hide().text(t).appendTo(this);
        });
        $('#<%=search.ClientID %>').keyup(function () {
            var s = $(this).val().toLowerCase().split(" ");
            alert("21");
            $.ajax({
                contentType: "application/json; charset=utf-8",
                type: "POST",
                data:{'prefixText':s},


                //data: "{data}",

                url: "AutoComplete.asmx/GetCompletionList",
                //data: "{}",
                dataType: "json",
                success: function (data) {
                    for (var i = 0; i < data.d.length; i++) {
                       $('#<%=search.ClientID %>').append("<tr><td>" + data.d[i].group_name +
                  "</td><td>" + data.d[i].group_sname + "</td></tr>");
                    }

                    //                       $(".filtertable tr:hidden").show();
                    //                       $.each(s, function () {
                    //                           $(".filtertable tr:visible .indexColumn:not(:contains('"
                    //            + this + "'))").parent().hide();
                    //                       });
                },
                error: function () { alert('Error!'); }

            });

        });
    });
</script>

这是我的网络服务方法

 public string[] GetCompletionList(string prefixText, int count)
{
    //ADO.Net
    SqlConnection cn = new SqlConnection();
    DataSet ds = new DataSet();
    DataTable dt = new DataTable();
    String strCn = "/*data connection*/";
    cn.ConnectionString = strCn;
    SqlCommand cmd = new SqlCommand();
    cmd.Connection = cn;
    cmd.CommandType = CommandType.Text;

    cmd.CommandText = "select group_name,group_sname from group_master Where group_name like @myParameter";
    cmd.Parameters.AddWithValue("@myParameter", "%" + prefixText + "%");


    try
    {
        cn.Open();
        cmd.ExecuteNonQuery();
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        da.Fill(ds);
    }
    catch
    {
    }
    finally
    {
        cn.Close();
    }
    dt = ds.Tables[0];

    //Then return List of string(txtItems) as result
    List<string> txtItems = new List<string>();
    String dbValues;
    //String dbValues1;
    foreach (DataRow row in dt.Rows)
    {
        //String From DataBase(dbValues)
        dbValues = row["group_name"].ToString() + " " + row["group_sname"].ToString();
        //dbValues1 = row["group_sname"].ToString();

        dbValues = dbValues.ToLower();
        //dbValues1 = dbValues1.ToLower();
        txtItems.Add(dbValues);
       // txtItems.Add(dbValues1);

    }

    return txtItems.ToArray();
}