Hi,

I am using project Ch18Ex01 from the C#'s book version 1.

There is an 'Update' button which updates the data in the database, but I have a problem, depending on how I am using it.
I have only changed one thing: display the contact Name instead of the customer ID in the list box.

Here is what I did:

1) go to the first item

2) change his contact name und click update

3) click on item 2 (the field is updated in the listbox.

4) click on item 1

5) change his contact name again and click update

--> the contact name of items 1 and 2 are modified in the listbox

What is wrong ?

And how can I update a record ?

if I change a field, click update and quit the application, the field has not the new value when I reopen it. I have to first go to an other item and then click 'update'.

Anybody can help me ?

Thanks a lot!

Daniel