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<< Convert collections of enums to collection of strings and vice versa
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ResolveUrl() from WCF service >>
DataContractSerializer truncated string when used with MemoryStream,but works with StringWriter
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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.aspx
fixed 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
Posted on Saturday, July 7, 2012 9:29 PM
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Comments on this post: DataContractSerializer truncated string when used with MemoryStream,but works with StringWriter
#
re: DataContractSerializer truncated string when used with MemoryStream,but works with StringWriter
Don't you have to flush the writer?
Try adding writer.Flush(); after the call to WriteObject.
Left by
Rob Herbert
on Jul 07, 2012 10:29 PM
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