Error Serializing Value Of Type System.Data.Datatable.

And pass the data using that newly created object. It can't be used as a return type for a webserivice method.Īlternatively, create you own class which inherits ISerializable interface. Or in other words, since DataTable doesn't implement the ISerializable interface. If you look into the message, we can find that DataTable is not serializable.

End of inner exception stack trace -Īt .Serialize(TextWriter textWriter, Object o, XmlSerializerNamespaces namespaces)Īt .Serialize(TextWriter textWriter, Object o)Īt .XmlReturnWriter.Write(HttpResponse response, Stream outputStream, Object returnValue)Īt .HttpServerProtocol.WriteReturns(Object returnValues, Stream outputStream)Īt .WebServiceHandler.WriteReturns(Object returnValues)Īt .WebServiceHandler.Invoke()' at (XmlWriter writer, Boolean writeHierarchy)Īt .(XmlWriter writer)Īt .WriteSerializable(IXmlSerializable serializable, String name, String ns, Boolean isNullable, Boolean wrapped)Īt .XmlSerializationWriter1.Write1_DataTable(Object o)Īt .DataTableSerializer.Serialize(Object objectToSerialize, XmlSerializationWriter writer)Īt .Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id) Output only accepts the variable in DataTable type, so I suggest you to convert ‘SallIncPivotTable’ to type ‘DataTable’. > System.InvalidOperationException: Cannot serialize the DataTable. Well I believe variable ‘SallIncPivotTable’ is of string type. 'System.InvalidOperationException: There was an error generating the XML document. Source Error: An unhandled exception was generated during the execution of the current web request. If you try, ends up with the following message Exception Details: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown. No, You can't return a DataTable object from a webservice method.

Error Serializing Value Of Type System.Data.Datatable.