英文:
Dotnet Core - Getting a warning on 'string.Replace(string, string?)' saying use 'string.Replace(string, string?, System.StringComparison)'
问题
我收到了关于“Replace”的以下警告：
严重性 代码 描述 项目 文件 行 抑制状态
警告 CA1307 '字符串.Replace(字符串，字符串?)'的行为可能
根据当前用户的区域设置而异。在
'JobsLedger.API.ControllerServices.Common.OrderAndFIlterHelpers.ODataProcessQuery.ProcessQuery(string)'中替换此调用
为调用'string.Replace(string, string?,
System.StringComparison)'。 JobsLedger.API C:\Users\simon\OneDrive\Documents\1.0
- AURELIA\1.0 - JobsLedgerSPA -ASPNET CORE 3.1\JobsLedger.API\ControllerServices\Common\OrderAndFIlterHelpers\ODataProcessQuery.cs 38 活动
我不知道如何重新配置以下内容以考虑'System.StringComparison'：
.Replace("and", "&&")
.Replace("substringof", string.Empty)
.Replace("(", string.Empty)
.Replace(")", string.Empty)
.Replace("'", string.Empty)
.Replace(" ", string.Empty)
.Replace("eq", ",")
每一行都引发了一个警告。
我正在使用VS2019，这些警告来自Roslyn编译器。我想摆脱这些警告...我该如何重写以考虑Replace中的'System.StringComparison'部分？
英文:
I m getting the following warning on "Replace"
> Severity Code Description Project File Line Suppression State
> Warning CA1307 The behavior of 'string.Replace(string, string?)' could
> vary based on the current user's locale settings. Replace this call in
> 'JobsLedger.API.ControllerServices.Common.OrderAndFIlterHelpers.ODataProcessQuery.ProcessQuery(string)'
> with a call to 'string.Replace(string, string?,
> System.StringComparison)'. JobsLedger.API C:\Users\simon\OneDrive\Documents.0
> - AURELIA.0 - JobsLedgerSPA -ASPNET CORE 3.1\JobsLedger.API\ControllerServices\Common\OrderAndFIlterHelpers\ODataProcessQuery.cs 38 Active
I dont know how to reconfigure the following to take into account 'System.StringComparison':
.Replace("and", "&")
.Replace("substringof", string.Empty)
.Replace("(", string.Empty)
.Replace(")", string.Empty)
.Replace("'", string.Empty)
.Replace(" ", string.Empty)
.Replace("eq", ",")
Each line has thrown up a warning..
I am using VS2019 and these warnings are coming from the Roslyn compiler. I would like to get rid of the warnings.. how do I rewrite this to take into account the 'System.StringComparison' part of the Replace?
答案1
得分: 4
只需告诉它你想要的比较类型；例如，对于忽略大小写的有序替换：
.Replace("and", "&", StringComparison.OrdinalIgnoreCase)
.Replace("substringof", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("(", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace(")", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("'", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace(" ", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("eq", ",", StringComparison.OrdinalIgnoreCase);
有关每个选项的描述，请查看StringComparison。一般来说，对于硬编码的类似系统替换，你不应该使用CurrentCulture / CurrentCultureIgnoreCase；基于文化的替换更适用于面向用户的替换（比如：<kbd>ctrl</kbd>+<kbd>f</kbd>）。另外，使用string.Empty 和更清晰（我个人认为）的"" 没有明显的好处。
英文:
just... tell it what comparison type you want; for example, for an ordinal-ignore-case replace:
.Replace("and", "&", StringComparison.OrdinalIgnoreCase)
.Replace("substringof", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("(", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace(")", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("'", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace(" ", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("eq", ",", StringComparison.OrdinalIgnoreCase);
For descriptions of what each option does, look at StringComparison. Generally speaking, you should not use CurrentCulture / CurrentCultureIgnoreCase for hard-coded system-like replacement; culture-based replace is more typical for user-facing replacements (think: <kbd>ctrl</kbd>+<kbd>f</kbd>). As a side-note, there's really no benefit over using string.Empty over the clearer (IMO) "".
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