c# - How to remove current row from a html table in jQuery json? -

i want write code multipledelete using jquery json.

this jquery code:

function deleteselected() {          var categories = new array();          debugger;          // iterate checkboxes , obtain checked values, unchecked values not pushed array          $("input[type='checkbox']").each(function ()              //$('input[type=checkbox]').prop("checked", this.checked)          {              this.checked ? categories.push($(this).val()) : null;          });           // assume urldata web method delete multiple records          var urldata = "webform5.aspx/deleterecord";          debugger;          $.ajax({              type: "post",              contenttype: "application/json; charset=utf-8",              url: urldata,               data: "{ 'id':'"+json.stringify( categories)+"' }", // used convert array proper json format              datatype: "json",              success: function (dt) {                  // done whatever tasks if succeeded                  alert("entry deleted");                  debugger;                  $("#example1").datatable();                  //$("#example1").bind;                  debugger;              },              error: function (result) {                  alert("error");              }          });       } 

this aspx code(codebehind multiple delete):

[webmethod]     // note clear difference between single , multiple selections     public static void deleterecord(list<int> id)     {         clscategorybl objproject = new clscategorybl();          // iterate through input list , pass process method         (int = 0; < id.count; i++)         {             objproject.categorydelete(id[i]);         }     } 

i want pass id aspx page problem output comes error popup.

 error: function (result) {                  alert("error"); } 

the below line return json array categories

"{ 'id':'"+json.stringify( categories)+"' }" 

validate value http://jsonlint.com/ , check if result valid json.

since had declared method public static void deleterecord(list<int> id) means expected input [1,2,3]

also use below line exact error coming

error: function (xhr, ajaxoptions, thrownerror) {                 alert("error # " + xhr + ajaxoptions + thrownerror);             } 

update 1:

below working code

var categories = new array(); // logic push categories.push(1); categories.push(2); categories.push(3);  var valuetxt = "{ \"id\":\"" + json.stringify(categories) + "\" }"; var urldata = "webform1.aspx/deleterecord"; $.ajax({     type: "post",     url: urldata,     data: valuetxt, // used convert array proper json format     contenttype: "application/json; charset=utf-8",     datatype: "json",     success: function (result) {         // in result same data posted         alert(result.d);      },     error: function (xhr, ajaxoptions, thrownerror) {         alert("error # " + xhr + ajaxoptions + thrownerror);     } });   [webmethod] // change parameter string, convert  json integer array public static string deleterecord(string id) {     // - sample here returning same json of integer     return id; }