The problem of submitting multiple object arrays using AJAX methods in JQ

When using $.ajax () to submit parameters to the background, if the parameters of the array in general in the background will be used to receive list<t>; but always unsuccessful as the following code

var arr1 = [{  "name":  "Tom",  "Age": 17 }, {  "name":  "
Jim ", " Age ": 22}]; var arr2 = [{  "name":  "Tom2",  "Age": 18 }, {  "name":  "

Jim2 ", " Age ": 24}];
    $ (function  ()  {        $.ajax ({             url:  '/home/useradd ',              DATA: {LIST1:ARR1,LIST2:ARR2},              success: function  (msg)  {                 if  (msg ==   ' 1 ')  {               
     console.log (' Add success ');                 } else {                     
Console.log (' Add failed ');                 }              }         }

);     })

After using the Fiddler Monitor, we found that the data became

List1[0][name]:tom
List1[0][age]:17
List1[1][name]:jim
List1[1][age]:22
List2[0][name]:tom2
List2[0][age]:18
List2[1][name]:jim2
List2[1][age]:24

The array that can be recognized in C # should be such a format

list1[0].aa=1&list1[0].bb=2&list1[1].aa=3&list1[1].bb=4&list2[0].aa=1&list2[0].bb=2& List2[1].aa=3&list2[1].bb=4

After finding the data on the Internet, I learned that Ajax post would be used because jquery needs to invoke the Jquery.param serialization parameters, we look at the jquery source

In the Ajax () method, the data for the JSON type is $.param () processed if  ( s.data && s.processData &&  typeof s.data !==  "string"  )  {    s.data = 
Jquery.param ( s.data, s.traditional ); //param Method if  ( jquery.isarray ( a )  | |   ( a.jquery && !jquery.isplainobject ( a )  )  )  {         // serialize the form elements          jquery.each ( a, function ()  {      
      add ( this.name, this.value );

        });     } else {        // If  traditional, encode the  "old"  way  (the way 1.3.2 or  older         // did it), otherwise encode 
Params recursively.         for  ( prefix in a )  {             buildparams ( prefix, a[ 
prefix ], traditional, add );         }     }

I'll do it after I find out why

First, traditional to false, we can prevent depth serialization by setting traditional to True

First write an array to object:

array.prototype.serializeobject = function   (lName)  {        var o = {};   
       $t  = this;         for  (var i = 0; i < $ t.length; i++)  {            for  ( var item in  $t [i])  {                 o[lName +  ' ['  + i +  ']. '
 + item.tostring ()] =  $t [I][item].tostring ();             }       
  }         return o;      

$.ajax ({            url:  '/home/useradd '),             data: $.param ( Arr1.serializeobject ("List1"))  +  "&"  + $.param (Arr2.serializeobject ("List2")),  
           success: function  (msg)  {                 if  (msg  ==  ' 1 ')  {              
      console.log (' Add success ');                 } else  {                 
   console.log (' Add failed ');                 }              }         });

C # background receive code

public string Useradd (list<user> list1, list<user> list2)
{return
"1";
}
public class User
{public
string Name {get; set;}
public int Age {get; set;}
}

So the problem is solved!