[Mono-list] How do you debug?

[Ivan Hawkes]

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On Friday 04 Jul 2003 4:40 pm, Marco Canini wrote:
> > Unhandled Exception: System.InvalidCastException: Cannot cast from sour=
ce
> > type to destination type
> > in <0x0007a> 00 System.Data.SqlClient.SqlDataReader:GetInt32 (int)
> > in <0x00189> 00 Interesource.Publish.Client.ContentList:.ctor
> > (System.Data.IDataReader,bool)
> > in <0x00012> 00 Interesource.Publish.Client.ContentList:.ctor
> > (System.Data.IDataReader)
> > in <0x000a2> 00
> > Interesource.Publish.Client.ContentProvider:ListContentItems
> > (Interesource.Publish.Entities.ContentTypeKey)
> > in <0x0009e> 00 simpletest.SimpleTest:Main (string[])
>
> this could be a different type mapping between mono's SqlClient and
> .net's SqlClient
>
> Could you report the table definition (sql), the datacolumn definition,
> and the code that raises the exception.

Ok, it definitely looks like Mono being a little naughty but it's a simple=
=20
fix.

The offending code is:

uniqueId =3D reader.GetInt32(reader.GetOrdinal("RealContentItemId"));


and the fix is:

uniqueId =3D reader.GetOrdinal("RealContentItemId");

It seems that GetOrdinal is returning an Int32 and we then try to convert t=
o a=20
(wait for it) Int32. Mono should just ignore this code but it doesn't.=20
Actually, the programming team never should have written it like this, but=
=20
hey, Mono should handle this kind of stupidity.
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