找不到类型或命名空间名称'var'（您是否缺少using指令或程序集引用？） [英] The type or namespace name 'var' could not be found (are you missing a using directive or an assembly reference?)

问题描述

大家好，



我收到错误，当我在项目中使用'var'关键字时，错误应该是这样的，但我不知道如何要解决这个问题，请帮助我，如果有任何人知道这个答案，给定的代码是我已经跟随我的项目...



var fromAddress =;

var toAddress =;





感谢提前......

解决方案

var （您似乎使用的是2.0）。

Var 是.net 3.5增强功能。你可能想查看你正在使用的.net版本。



祝你好运！

解决方案可能很简单：

  string  fromAddress =  ; 
  string  toAddress =  ; 

我知道当对象名称为时，我们尝试使用 var 很长很复杂。

但我觉得很愚蠢，人们试图通过在任何地方使用 var 关键字来打败C＃语言的强类型方向。

hi all,

I got an error,when am using 'var' keyword in my project, the error should be like this, but i dont know how to resolve this problem, please help me if any one known this answer , the given code is i have follow in my project...

var fromAddress = "";
var toAddress = "";


thanks to advance...

解决方案

var was added in C# 3.0 (you seem to be using 2.0).

Var is a .net 3.5 enhancement. You might want to check the .net version you are using.

Good luck!

Solution could be simple:

string fromAddress = "";
string toAddress = "";

I understand that we try to use var when object names are quite long and complicated.
But I find silly that people try to defeat the strongly-typed orientation of the C# language by using var keyword anywhere.

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