C#中是否有类似于VB.NET的运算符? [英] Is there a VB.NET-Like operator in C#?

问题描述

我正在重写vb.net应用程序，但不能声称对vb很棒.我需要用C#编写等效代码:

I am rewriting a vb.net app and I can't claim to be great with vb. I need to write this equivilent in C#:

Dim bigList = (From gme In dtx.gmc_message_elements 
              Where gme.element_key_name Like "*email" _
              Or gme.element_key_name Like "*web" 
              Or gme.element_key_name Like "*both" _
              Select gme.element_key_name Distinct).ToList()

我到目前为止:

var bigList = (from gme in dtx.gmc_message_elements 
               where gme.element_key_name Like "*email" 
               || gme.element_key_name Like "*web" 
               || gme.element_key_name Like "*both" 
               select gme.element_key_name).FirstOrDefault().ToList();

如您所见，我不确定like运算符的含义是什么.我通过几个代码转换器进行了测试，他们不断抛出错误.

As you can see I am not sure what the equivalent of the like operator is. I ran this through a couple code converters and they constantly threw errors.

推荐答案

要获得最等效的功能，请确保您的C#项目引用了Microsoft.VisualBasic程序集.

To get the most equivalent functionality ensure your C# project has a reference to the Microsoft.VisualBasic assembly.

例如，您可以直接在C#中使用VB.NET Like运算符.

You can then directly use the VB.NET Like operator from your C#, e.g.

LikeOperator.LikeString(gme.element_key_name, "*web", CompareMethod.Text);

请确保包含

using Microsoft.VisualBasic.CompilerServices;

这将获得最等效的功能，但是我认为这是一个小技巧.

This will get the most equivalent functionality, however would be what I consider a bit of a hack.

您的其他选择是利用 String.StartsWith ， String.EndsWith ， String.Contains 或正则表达式.

Your other options would be to make use of the String.StartsWith, String.EndsWith, String.Contains or Regex.

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