从函数调用按钮 OnClick [英] Calling A Button OnClick from a function

问题描述

我有一个 OnClick=Button_Click 的按钮.我想从另一个函数调用 Button_Click 但问题是我需要给它:

I have a button with OnClick=Button_Click. I want to call Button_Click from another function but the problem is that I need to give it:

(object sender, EventArgs e)

我应该为这些参数输入什么?有什么办法解决吗?

What should I enter for those parameters? Is there any way around it?

推荐答案

你可以这样做

 Button_Click(null,EventArgs.Empty);

虽然我同意最好提取可以从任何地方调用的函数.

although I agree that it's better to extract function that could be called from anywhere.

例如，如果你有

protected void Button_Click(object sender, EventArgs e)
{
  //some list of code      
}

这段代码应该放在一些新方法中，然后从 Button_Click 或任何其他方法中调用

this code should be put in some new method and then called from Button_Click or any other method

private void ExtractedMethod()
{ 
 //some list of code
}

 protected void Button_Click(object sender, EventArgs e)
 {
  ExtractedMethod();    
 }

我建议您阅读Martin Fowler 所著的重构:改进现有代码的设计一书.这是架子上的必备品.你会不时回到那本书，它是永恒的.

I recommend you to read a book Refactoring: Improving the Design of Existing Code by Martin Fowler. It's a must on a shelf. You will come back to that book from time to time, it's timeless.

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