Hi. Does anyone have idea of doing calculations using vb.net? when the button is clicked and invoked, the points in the database should be deducted. I have no experience of doing calculation before.

does anyone have experience with multiple booking project using arraylist?

but I am retrieving the numbers of emails using SQL statement which will be called using the button. which is then I need an array and delimiters to put the semicolon to separate each of the emails I have. my SQL statement is like that SELECT Email FROM Customers WHERE newsletterAgree = "True" I am confused on how to start :confused:

after recreating the string how do I store it into the textbox?

I want to use array to retrieve all the emails from my contacts for example. and i want to use delimiters to seperate all the emails with a semicolon ; and then i need to join them back as a string again to put it in a textbox. How do I do that? :confused: Urgent help is needed. Thank you