DataContractSerializer truncated string when used with MemoryStream,but works with StringWriter
- by Michael Freidgeim
We've used the following DataContractSerializeToXml method for a long time, but recently noticed, that it doesn't return full XML for a long object, but truncated it and returns XML string with the length of multiple-of-1024 , but the reminder is not included. internal static string DataContractSerializeToXml<T>(T obj) { string strXml = ""; Type type= obj.GetType();//typeof(T) DataContractSerializer serializer = new DataContractSerializer(type); System.IO.MemoryStream aMemStr = new System.IO.MemoryStream(); System.Xml.XmlTextWriter writer = new System.Xml.XmlTextWriter(aMemStr, null); serializer.WriteObject(writer, obj); strXml = System.Text.Encoding.UTF8.GetString(aMemStr.ToArray()); return strXml; } I tried to debug and searched Google for similar problems, but didn't find explanation of the error. The most closed http://forums.codeguru.com/showthread.php?309479-MemoryStream-allocates-size-multiple-of-1024-( talking about incorrect length, but not about truncated string.fortunately replacing MemoryStream to StringWriter according to http://billrob.com/archive/2010/02/09/datacontractserializer-converting-objects-to-xml-string.aspxfixed the issue. 1: var serializer = new DataContractSerializer(tempData.GetType()); 2: using (var backing = new System.IO.StringWriter()) 3: using (var writer = new System.Xml.XmlTextWriter(backing)) 4: { 5: serializer.WriteObject(writer, tempData); 6: data.XmlData = backing.ToString(); 7: }v
