Deserializating Xml and Json

ExampleContract.cs

[DataContract(Name="Client")]
public class ClientData
{
    [DataMember]
    public int ClientId { get; set; }
}

ExampleUsage.cs

new Serializer<ClicntData>().FromJson(myHappyString);

Serializer.cs

    public class Serializer<T>
    {
        public T FromXml(string xmlString)
        {
            MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(xmlString));
            DataContractSerializer ser = new DataContractSerializer(typeof(T));
            T item = (T)ser.ReadObject(ms);
            ms.Close();
            return item;
        }

        public T FromJson(string jsonString)
        {
            MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(jsonString));
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            T item = (T)ser.ReadObject(ms);
            ms.Close();
            return item;

        }

        public string ToXml(T item)
        {
            DataContractSerializer ser = new DataContractSerializer(typeof(T));
            MemoryStream ms = new MemoryStream();
            ser.WriteObject(ms, item);
            string xml = Encoding.UTF8.GetString(ms.ToArray(), 0, (int)ms.Length);
            ms.Close();
            return xml;

        }

        public string ToJson(T item)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            MemoryStream ms = new MemoryStream();
            ser.WriteObject(ms, item);
            string json = Encoding.UTF8.GetString(ms.ToArray(), 0, (int)ms.Length);
            ms.Close();
            return json;
        }
    }