SerializationException With DataTable

[Wender Oliveira]

Hello, I'm trying to access a DataTable from a Typed Dataset through Remoting but when I call my method it throws the follow exception: [SerializationException] The constructor to deserialize an object of type TBPerfilDataTable was not found. But, when I try to return the full filled typed dataset it works... It only doesn't works with DataTables. Any idea? Wender Oliveira .NET Programmer

[SeMartens]

Hi Wender, I'm not really sure if the TBPerfilDataTable class needs to have a default constructor (without any parameters). If I access an object using serialization (e.g. by using a WebSerice), the serialized class always needs a constructor without parameters. Is your datatable marked as serializable ? Regards Sebastian Trying to be a .NET Programmer ;-)

[miah alom]

If you are deriving from the DataTable class, then you must add the following code protected MyDataTable(Serializati­onInfo info, StreamingContext context):base(info, context) { }

[Wender Oliveira]

Sebastian, thanks for your attention First it throws an exception about Serializable Attribute not found, so, I marked all my datatable classes as [Serializable()]. Then, I tried again and got that exception. I tried to reimplement ISerializable interface but I didn't understande how to do this. Wender Oliveira .NET Programmer

[Wender Oliveira]

Thanks, I didn't try but it seems to work. I did an workaround and now works... :-) Tks... Wender Oliveira .NET Programmer