Hello Eric,

thanks for the fast reply. Actually the code should be C# and I am not very good at that
I was trying to use a hash function to have a fast access to my data that I extracted from the SQL Database. Furthermore, the Hash table is dynamic. I got a unique customer number, the postcode and some fictional data about the sales. How would you organise this? Simply in a string or an array? I used an array so far and wanted to use the unique customer numbers as index...this didn't work out so well.

Thank you very much for the help so far

Best regards,
Sebastian