Hello,

I have been having trouble figuring out how to calculate a sum that the user inputs in to a textbox. On my form I have a textbox and a button. I would like the user to be able to input a sum like "3.5 + 2.87" and then click the button and the form calculates the answer for them. I need to be able to convert the string in to a sum somehow and then calculate it.
Any help would be much appreciated.

Thanks in advance,

Harry