Hi all, I don't know anything about programming, but I know, that what i want to achieve is simple, so I just want to ask. I already made a GUI that I'm happy with, with two drop down menus that have various selections and a push button that should trigger a calculation to get a desired value in the text box considering the selections made im the drop down. What should be the code to get a certain value in the text box, considering the selections of drop down menus? (I already have the values calculated for every possible combination, so I just need a code for the push button action to work in corelation with choices made in drop down.)