Ajax POST Request Instance

Front desk jsfunction onsavebarcodetitle () {                      if (document.getelementbyidx_x ("Path1"). Value! = "") {                  var MPDF417Text = pdf417text.value;                 var mtitle = mpdf417text.split ("^");                 $.post ("Pdf417.ashx?action=savecarcode", {Barcode_File:document.getElementByIdx_x ("Path1"). Value, Barcodedescript:mtitle[6], r:math.random ()},              function (data) {                 data = Eval_r (data);             }, "JSON");                 alert ("saved successfully");            }             else {                 alert ("Get Picture Path ' Operation First");             }         }     post: Request type  pdf417.ashx?action=savecarcode: General handler? action= Key--In the general processing program to face the corresponding method    Barcode_file corresponding stream ctx.request["Barcode_file"] General handler  public void ProcessRequest (HttpContext context)      {        context. Response.ContentType = "Text/plain";         if (context. Request["action"] = = "GetPDF417")          {            getpdf417 ();         }        else if (context. Request["action"] = = "Savecarcode")         {             savecarcode ();         }        context. Response.Flush ();         context. Response.End ();     } private int Msavecarcode (string barcode_file, String barcodedescript)     {                 sqlparameter[] para ={new SqlParameter ("@BarCodeImage", Barcode_file),                        & nbSp;      new SqlParameter ("@BarCodeDescript", Barcodedescript)};         int result = MGear.Projects.Utility.SqlHelper.ExecuteNonQuery (conn, CommandType.StoredProcedure, "dbo. Createbsarcode ", para);        return result;             }

Ajax POST Request instance