Convert JSON string to save into the database

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I have a ajax call that returned a 200. I have a webservice that I want to save certain fields from the string I want to save into certain columns and the whole string into another column.

Is there a way to make the string use-able so I can get at each item or make an object from the string.

When I hover over the data(word) in the web method:(debugging)

C#

[WebMethod]
   public string InsertformData(string data)
   {

I get the JSON string:

data = "[{\"name\":\"formType\",\"value\":\"solarPV\"},{\"name\":\"inp-membershipNumber\",\"value\":\"1\"},{\"name\":\"inp-company-name\",\"value\":\"acme\"},{\"name\":\"inp-representative\",\"value\":\"dw\"},{\"name\":\"inp-position\",\"value\":\"dd\"},{\"name\":...

I want to be able to save to this: or something workable.

C#

cmd.Connection = conn;
                cmd.CommandType = CommandType.Text;
                cmd.CommandText =
                    @"INSERT INTO tblFormData(formType, formAssessmentID, formDate, formContent) VALUES(@formType, @formAssessmentID,@formDate, @formContent)";
                cmd.Parameters.AddWithValue("@formType", data[0]);
                cmd.Parameters.AddWithValue("@formAssessmentID", data[1]);
                cmd.Parameters.AddWithValue("@formDate", data[6]);
                cmd.Parameters.AddWithValue("@formContent", data);

How would I convert the string to useable objects?

Posted 4-Feb-15 5:33am

StudentRik

Updated 4-Feb-15 5:39am

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**Zoltán Zörgő** · Accepted Answer · 2015-02-04T05:40:00

Solution 1

There are several JSON (de)serializers you can use. Like fastJSON[^] or Json.NET[^] you can use to deserialize your json string into known or dynamic object.

Posted 4-Feb-15 5:40am

Zoltán Zörgő

Comments

StudentRik 5-Feb-15 4:42am

Thank you. I have used JsonConvert.DeserializeObject(data), Do I need to make a class file to set my name: value pairs? A for loop? I don't know what to do next. any help would be great thank you.

Zoltán Zörgő 5-Feb-15 4:49am

Try the ones I have recommended. Yes, you should make a class for it. With these you can deserialize to List<yourclass>.

StudentRik 5-Feb-15 5:05am

Thank you, do you know of any examples or posts showing this?

Zoltán Zörgő 5-Feb-15 8:30am

Something like this should work with fastjson:
List<yourclass> wallets = JSON.ToObject<List<yourclass>>(jsonstring);</yourclass></yourclass>
For Json.NET check this: http://www.newtonsoft.com/json/help/html/DeserializeObject.htm