>What type is customers?

It's a DataTable. Extracted from an Odbc datastore. Not sure either whether this is the smartest type to keep my table information in, but it's the only one I'm familiar with, well ...

Thanks for caring.

DataRow r1 =customers.AsEnumerable().First(r => (r("ID") == ID));

>
>>Right. Many thanks. I applied .First() to r1, but that did not work.
>>
>>In fact it all boils down to :
>>
>>

>>DataRow r1 =customers.AsEnumerable().First(r => (r("ID") == ID));
>>

>>