I implemented a string TypeConverter, which showed up fine in the designer. When I implemented another string TypeConverter in the same assembly, neither appeared.

Can there only be one TypeConverter per .NET type?

No there can be more than one. Would you please attach your TypeConverters code?

I retried a pair of very simple converters with nothing else in the assembly and it worked fine. My real assembly contains a lot besides the TypeConverter so other classes may be interfering somehow. I'll whittle it down to bare essentials before posting my code.

I'll close this thread for now, and if you post a reply it will be re-openned automatically. Good Luck.