How can I create math example without mark?

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Hello I trying to create Mathematical example wtihout mark. In WPF Apllication in xaml I create radiobutton according to which the example is chosen (addition, multiplication, subtraction). But I don´t know how to create total sum.

What I have tried:

C#

int total =  (prvnic, znam, druhyc);

int total is total sum of counting
prvnic is first nuber, which is randomly generated
znam is mark which is selected by radiobutton
druhyc is second number, which is randomly generated

I ask for your advice. It's probably primitive, but somehow I have no idea.
Thank you

Posted 19-Apr-21 22:45pm

dejf111

Updated 20-Apr-21 0:34am

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2 solutions

Solution 2

You can also use a math parser that parses a string, see CodeProject article: Math Parser .NET C#[^]

Or wait until Mark has left the room :)

Posted 20-Apr-21 0:34am

RickZeeland

Updated 20-Apr-21 1:55am

v2

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Richard MacCutchan · Accepted Answer · 2021-04-19T22:50:00

Solution 1

You need to write the code to calculate it. So create a switch block or set of if/else statements to perform the appropriate calculation based on the operator (+, -, *, /). See C# operators and expressions - C# reference | Microsoft Docs[^].

Posted 19-Apr-21 22:50pm

Richard MacCutchan

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dejf111 20-Apr-21 4:56am

In fact, it is true. Thank you very much!!!