i'm new to vb.net and am having a little trouble with a textbox. i'm using vb 2010 and am trying to make a calculator with a form. i've got the buttons with numbers that display the number in the box when it is clicked on, but the next button clicked on replaces the previous value instead of adding to it. i've downloaded 2 calculator examples, but the code is way beyond me, i can't even figure out where the box is in either of them. it seems that when i tell the button to put the variable in the box there would be some way to tell it to add the new number instead of replace the number, but i can't figure out what it would be. this is going to be a group project later in the quarter, but i'm doing it for the learning experience now.