Problems with constraints, filling the datatables

[Barnabas Szabo]

Hi,

I'm a newbie in mysql, and I have the follwing problem with visual studio 2005:
- using visual basic 2005
- The started a application that uses mysql datatables
- opened the connection to my msql schema without any problems
- The dataset is also properly configured, and I can edit them in the dataset deigner without any problems
- The table has 1 primary key and its as NOT NULL
- when I'm filling the tableadapter the first and opening the form, it works perfect
- When I'm closing the form, the dataset is cleared
But when I'm reopening the form in the same debugging a error messeage occurs:
constraintexception was unhandled, failed to enable constraints
I think this happens because of the primary key.

Please somebody help me, I'm really blocked here

Thanks
Barnabás