取消jQuery发布到ASP.Net WebMethod

我正在开发一个web应用程序，该应用程序通过点网web方法实时查询MS-SQL，如下所示：

jQuery

var xhr = $.ajax({
    type: "POST",
    url: "page.aspx/SearchMatchingRecords",
    data: "{ company:'" + company + "', country:'" + country + "', id: <%= Request.QueryString["id"] %>}",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function (data) {
      if (data != "") {
          for (var post in data) {
              var results = data[post];

              var output = '<table ... headers... etc';

              for (var i = 0; i < results.length; i++)
              {
                   output += "<tr><td>";
                   output += #DATA#
                   output += "</td></tr>";
              }

              output += '</tbody></table>';

              $('[id="fsMatchingRecords"]').append(output);
                      }
                    };
                    return false;
                 }
               })
              }

              $('[id$="BtnVerify"]').click(function () {
              xhr.abort();
              });

var xhr=$.ajax({
类型：“POST”，
url:“page.aspx/SearchMatchingRecords”，
数据：“{company:'“+company+”，国家：“+country+”，id:}”，
contentType:“应用程序/json；字符集=utf-8”，
数据类型：“json”，
成功：功能（数据）{
如果（数据！=“”）{
对于（var post in数据）{
var结果=数据[发布]；
var输出
[WebMethod]
public static List<MatchingRecord> SearchMatchingRecords(string company, string country, int id)
{        
    SqlConnection objConn = new SqlConnection(ConfigurationManager.ConnectionStrings["DB"].ConnectionString);

    objConn.Open();

    List<MatchingRecord> mRecords = new List<MatchingRecord>();

    SqlCommand objCmd2 = new SqlCommand("Page_Matching_Records", objConn);
    objCmd2.CommandType = CommandType.StoredProcedure;
    objCmd2.Parameters.AddWithValue("@company_1", HttpUtility.UrlDecode(company));
    objCmd2.Parameters.AddWithValue("@country_2", country);
    objCmd2.Parameters.AddWithValue("@id_3", id);
    SqlDataReader objDr = objCmd2.ExecuteReader();

    int i = 0;

    if (objDr.HasRows)
    {
        while (objDr.Read())
        {
            mRecords.Add(new MatchingRecord(
                Convert.ToInt32(objDr["id"]), 
                objDr["Rest of Data"]
                ))
            );
        }
    }

    objConn.Close();

    return mRecords;
}