Get values from a JSON string returned from C# web service

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C#

Java

Android

JSON

webservice

Hi,

I have written a C# web service as below to generate a JSON string or so I assumed.

List<Dictionary<String, Object>> lstdict = new List<Dictionary<String, Object>>();

...
...
... Logic for connecting db and getting records in msqldat (data reader) goes here.
    while (msqldat.Read())
    {
         var detls = new Dictionary<string, object>();
         for (int i = 0; i < msqldat.FieldCount; i++)
             {
                 detls.Add(msqldat.GetName(i), msqldat.IsDBNull(i) ? null : 
                 msqldat.GetValue(i));
                 lstdict.Add(detls);
            }
    }
JavaScriptSerializer jss = new JavaScriptSerializer();
String mret = jss.Serialize(lstdict);

The above webservice method is called in my java code and the below string is received.

{"GetDataResult":"[
{\"uname\":\"hkIUZIikXVTC5aNaSva8IQ==\",\"passwd\":\"hkIUZIikXVTC5aNaSva8IQ==\",\"validupto\":\"\\\/Date(1545330600000)\\\/\",\"dept\":\"juubHSHgLr\/3JWnrZCh5LeeW5Q7lioWOZ1\/Tg+YRy\/o=\",\"rid\":1},{\"uname\":\"hkIUZIikXVTC5aNaSva8IQ==\",\"passwd\":\"hkIUZIikXVTC5aNaSva8IQ==\",\"validupto\":\"\\\/Date(1545330600000)\\\/\",\"dept\":\"juubHSHgLr\/3JWnrZCh5LeeW5Q7lioWOZ1\/Tg+YRy\/o=\",\"rid\":2}]"}

I am trying to get the values in android application by using this Java code :

JSONObject uiobj = new JSONObject(mret);
JSONArray arrUserinfo = uiobj.getJSONArray("GetDataResult");

At the second line the code fails with this error :

.....  at GetDataResult of type java.lang.String cannot be converted to JSONArray

Please suggest how do I go about it ? Thanks in advance. Am i wrong from the c# side or java side.

What I have tried:

The similar code I have found everywhere and not able to get it to work. So I thought my JSON string requires a different method of approach and hence posted here. Im new to JSON, please bear ignorance.