Characters Å Ä Ö is not getting displayed in my DDL, how can I tell restclient to utilize a specific charset?

Question

Before I start here is the problem. It should be like this:

Björn Nilsson, instead its displaying strange special characters, all values that have characters Å, Ä a

Answer 1

in the theory you got an charset encoding/decoding problem.

the Cause: the content you try to read has been encoded using a charset like iso-8859-1 or iso-8859-15. and you'll try to read (decode) it directly to an "UTF-8" character Model. Of course it won't work because UTF-8 because UTF-8 won't in a miracle recognize your special chars (Ä,Ü, Ö, and so on..). UTF-8 is no guesser for character coding.

Solution:

1- (Re)encode your content( e.g "Björn Nilsson") with its corresponding charset (iso-8859-1/iso-8859-15) into Byte collection.

2- Decode your content with into "UTF-8" based charset.

here an Helper Class as example:

using System;
using System.Collections.Generic;
using System.Text;

    namespace csharp.util.charset
    {
        public class SysUtil
        {
            /// 

            /// Convert a string from one charset to another charset
            /// 
            /// source string
            /// original encoding name
            /// dest encoding name
            /// 
            public static String StringEncodingConvert(String strText, String strSrcEncoding, String strDestEncoding)
            {
                System.Text.Encoding srcEnc = System.Text.Encoding.GetEncoding(strSrcEncoding);
                System.Text.Encoding destEnc = System.Text.Encoding.GetEncoding(strDestEncoding);
                byte[] bData=srcEnc.GetBytes(strText);
                byte[] bResult = System.Text.Encoding.Convert(srcEnc, destEnc, bData);
                return destEnc.GetString(bResult);
            }

        }
    }

Usage:

in your (JSON-, XML, other) serializer/deserializer classes just convert your content like that

String content = "Björn Nilsson";
SysUtil.StringEncodingConvert(content, "ISO-8859-1","UTF-8");

you could try to make your calls in your deserializer (if they really do what they mean):

public class JsonNetSerializerFactory :ISerializerFactory 
{
    public ISerializer Create()
    {
        return new JsonNetSerializer();
    }
    public class JsonNetSerializer : ISerializer
    {
        public T Deserialize(string input, String fromCharset, String toCharset)

        {
           String changedString = SysUtil.StringEncodingConvert(input, fromCharset,toCharset);

            return JsonConvert.DeserializeObject(changedString  );
        }

        public IList DeserializeList(string input, String fromCharset, String toCharset)
        {
         String changedString =  SysUtil.StringEncodingConvert(input, fromCharset,toCharset);

            return JsonConvert.DeserializeObject>(changedString);
        }
    }
}

that's for your

JsonNetSerializerFactory  

please try to do same for other factories like

XmlSerializerFactory  

and don't forget your setting in your HTML-page