passing array to webmethod using ajax

Question

How to pass an array to webmethod using the following code:

$.ajax({
    type: "POST",
    url: "somepage.aspx/somemethod",
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

Please see this answer for a working example: stackoverflow.com/questions/7971393/… — weir
– weir, Commented Nov 2, 2011 at 0:57

Reigel Gallarde · Accepted Answer · 2010-07-07 02:30:11Z

2

just arrays...

$.ajax({
    type: "POST",
    url: "somepage.aspx/somemethod",
    data: "a[1]=1&a[2]=2&a[3]=3",
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

you might do also on objects...

var myObject = {
  a: {
    one: 1, 
    two: 2, 
    three: 3
  }, 
  b: [1,2,3]
};
$.ajax({
    type: "POST",
    url: "somepage.aspx/somemethod",
    data: decodeURIComponent($.param(myObject)), // a[one]=1&a[two]=2&a[three]=3&b[]=1&b[]=2&b[]=3
    contentType: "application/json; charset=utf-8",
    dataType: "json"
});

you can look at more options of $.ajax(), these includes data

edited Jul 7, 2010 at 2:30

answered Jul 7, 2010 at 1:39

Reigel Gallarde

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8 Comments

karim79 Over a year ago

Good answer Reigel. OP, please see the data option: api.jquery.com/jQuery.ajax

user384080 Over a year ago

the webmethod has the following signature but it is not getting called: [WebMethod] public static string somemethod(string[] arg) { }

Reigel Gallarde Over a year ago

what scripting language are you using? ASP.NET?

user384080 Over a year ago

I have the js file which contains: var array = new Array(); $.ajax({ type: "POST", url: "somepage.aspx/somemethod", data: array contentType: "application/json; charset=utf-8", dataType: "json" }); and the method in the aspx.cs: [WebMethod] public static string somemethod(string[] arg) { }

user384080 Over a year ago

Reigel - can u please show me the signature of your "somemethod" method would be?

|

Germán Rodríguez · Accepted Answer · 2010-07-07 01:57:55Z

-1

I use something similiar to the following method

var your_array = new array();
your_array[0] = 1;
your_array[1] = 2;

var data = { numbers: [] };

data.numbers = your_array;

$.ajax({
    type: "POST",
    url: "somepage.aspx/somemethod",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    data = json_data
});

answered Jul 7, 2010 at 1:57

Germán Rodríguez

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