total sum c#

Question

I want to sum number like this
Ex: 2+3 =5
But i want to use one textBox , one Button and one richTextBox;
How to write code by c#

Answer 1

https://code.sololearn.com/cDfv9X32nXE6/?ref=app

Just check my code. If I recall, I simply made use of .NETs DataTable's compute method.
It allows calculating of strings.

Just beware that some symbols dont exists/work with the method. So you have to do your own conversion and such before you call that method.

Answer 2

Does

string Input = "1 + 1";
string value = new DataTable().Compute(Input, null).ToString();

Look difficult to understand now?
Just google ".NET DataTable.Compute method" and click on that documentation.

Answer 3

Could you show easy than this ? It’s difficult to understand