Following problems:
- You define an Eventname as ClickAdditionSign but for the event you use AdditionSign_Click !?
- in the ReduceSign_Click and AdditionSign_Click routines you were mixing up lots of things.
Attached the modyfied version. Comments are in the code.
Best regards.
What exactly do you want to do ?
You dim Amt as an integer number.
Then you try to add to an integer number a string, this doesn't work.
The NumberFormat keyword returns a string !
If you need numbers you must use numbers.
When you want to display numbers in a given format then you should use NumberFormat.
For me it's not good practice to mix string variables with number variables when you want to make calculations even though sometimes it works.
Best regards.