CODEWITHSUNDEEP
asp.netajaxjsonasp.net-web-apijson.net
daniel
daniel

Reputation: 35703

JSON.NET Error reading JObject

I am sending a JSON object via AJAX and Web Api to my Server:

var data = [
  ["fdsfsd", "Kifdsfa", "fsdfsa", "fadsf", "fasdfsd", "fadsf", "fasdfsd"],
  ["2008", "-5", "11", "12", "13"],
  ["2009", "20", "-11", "14", "13"],
  ["2010", "30", "15", "-12", "readOnly"]
];

$.ajax({
        url: '../webapi/Products',
        type: 'POST',
        dataType: "text", 
        data: "="+JSON.stringify( data ),
        success: function (test) {
                alert(test);
            },
            error: function (test) {
                alert("Error");
            }

so i am getting on server the value which i want to parse with JSON.NET:

public void Post([FromBody]string value )
{
      JObject o = JObject.Parse(@value);
}

This throws the exception:

Error reading JObject from JsonReader. Current JsonReader item is not an object:
StartArray. Path '', line 1, position 1.

Why? The value seems to be right to me?

Upvotes: 5

Views: 21419

Answers (2)

J Griffiths
J Griffiths

Reputation: 729

Just glancing over this, I'd suggest changing

data: "="+JSON.stringify( data ),

to

data: "myJSON="+JSON.stringify( data ),

...since jQuery expects either an object to serialize, or a valid query string, and then listening for that posted variable. I don't think you can just POST a bunch of data without assigning it as the value of a name/value pair.

Upvotes: 0

HashtagMarkus
HashtagMarkus

Reputation: 1661

json.stringify will create the following json string:

[
  ["fdsfsd", "Kifdsfa", "fsdfsa", "fadsf", "fasdfsd", "fadsf", "fasdfsd"],
  ["2008", "-5", "11", "12", "13"],
  ["2009", "20", "-11", "14", "13"],
  ["2010", "30", "15", "-12", "readOnly"]
]

Which is a jsonArray and not a JsonObject. So on server side you'll have to read it using JArray a = JArray.Parse(@value);

Upvotes: 12

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