This isn't a Winforms problem per say, as I've noticed the same problem while trying in compile time.

I've created a new live object, and in one of its fields, i've set it to a word written in Hebrew. It was written in a Textbox control.
The object seems to stay in hebrew, but the entry in MySQL (my backend of choice, all fields set as unicode general insensitive) only shows ??????

After re-loading the application, the entry loads with ?????? all over where hebrew was supposed to be, reflecting the 'change' in MySQL.

I inserted a manual word in hebrew (using FireFox) and loaded the application, and everything showed fine.

Any ideas how I can fix this wacky (extremely problematic) behavior?

Here are images taken of the program, two entries: one inserted using the WinForms (and same behavior when I tried to add the word in compile time, using ""'s) and the other is being read after it was inserted using FireFox using phpmyAdmin.

Just wanted to note that the field types in MySQL are varchar...

Help, Please :-/ ?

Can you change your log4net level to DEBUG and see how your query is converted to SQL? (mainly how the hebrew text is written)

After looking for a solution, it turns out nHibernate is not the one to blame:

In case you run into a similar problem, here's what I did to fix it:

1) Install the latest Database software (upgrade) and make sure that you tag any multi-language aiding options.

2) Add globalization information to your config files (Google for "Globalization C#")

That solved the problem for me.
Sorry again for troubling the staff :-)