using overloading in calculator

Question

hello every one ;
i am creating a calculator using overloading function in c-sharp.
the problem is , if i press two button then the answer more then one . for e.g , i press 1+2 the real answer should be 3 but the answer is getting 4. if i press three button like 1+2+3 the answer should be 6 but the answer is getting 7. so i realize that the problem is occuring in the function calling because without overloading there is no error in this application .
plz help me .
thanks to all of you.
regards
sumaira

Attachment: first.zip

Felipe Ramos · Answer

sumaira you are only keeping track of a number when you click add (variable w) and on your = event you are taking the number currently being display on the textbox + w. Because of that you will only get the operation for the last number entered and current number on the textbox. I would say to build an expression like first#+operation+second#+operitation...etc until the equals button is clicked and than you can evaluate your expression. If you don't want string parsing you can just keep a list of numbers but keeping in mind concatenated operations.