How to make some variables always accessibile in any forms or private functions in C# windows form application

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I have a problem how to make some variables or output of a private function in C# WFA accessibile to other forms or other private functions.

For example Let us assume Button 1 will give you summation of two variables and store the summation in variable sum. Then I want use variable sum in other functions. Any Idea?

What I have tried:

I aways make kind of dublications of codes which is not a solution. I think I should do somehting with public. The solution still need help from you. Thanks

Posted 4-Jun-19 22:10pm

EngAb1989

Updated 4-Jun-19 22:23pm

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F-ES Sitecore · Answer 1 · 2019-06-04T22:24:00

The easy (but wrong) way is to use static variables with are global to everything in the app domain. The proper way will be to store your data in your "main" form, and if other forums need it they can be passed the data when you call those functions, or if the data is needed by a child form you can give the child form the data when you create it. Other traditional ways of communicating between forms are using events when one forum will subscribe to the events of another if they want to be notified of changes.