---
title: "How to Call Public Variable/Method From One Class To MainForm.Cs?"  
description: "How to Call Public Variable/Method From One Class To MainForm.Cs?"  
author: "Anonymous User"  
published: 2014-10-27  
updated: 2014-10-27  
canonical: https://www.mindstick.com/forum/2438/how-to-call-public-variable-method-from-one-class-to-mainform-cs  
category: ".net"  
tags: ["c#", ".net"]  
reading_time: 1 minute  

---

# How to Call Public Variable/Method From One Class To MainForm.Cs?

I [am trying](https://answers.mindstick.com/qa/36834/which-two-programming-languages-should-i-master-in-if-i-am-trying-to-get-into-google-or-facebook) to call:public double lose;[public void](https://www.mindstick.com/interview/2715/can-we-write-static-public-void-instead-of-public-static-void) LoseWeight(){ lose = [weight](https://www.mindstick.com/articles/12951/the-importance-of-breakfast-in-weight-reduction) - 400;}tolistBox.Items.Add("calories : " + lose); //on MainForm.cs\
But for some reason, I'm [getting error](https://www.mindstick.com/forum/159638/getting-error-microsoft-office-interop-outlook-doesn-t-work): The name "lose" does not exist in the current context.I thought all public [variables](https://www.mindstick.com/articles/715/php-variables) and [methods](https://www.mindstick.com/articles/13060/runny-nose-remedy-methods-that-work-best) can be shared.Is there a special rule for getting things from [class](https://www.mindstick.com/blog/165/generic-class-in-c-sharp) -> MainForm?

## Replies

### Reply by Pravesh Singh

hi\
you shuld declare a variable of the class your lose variable in first, like\

```
class LoseClass{   public double lose;   //...}
```

in file MainForm.cs\

```
LoseClass loseClass = new LoseClass();listBox.Items.Add("calories" + loseClass.lose);
```


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Original Source: https://www.mindstick.com/forum/2438/how-to-call-public-variable-method-from-one-class-to-mainform-cs

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