VSCode中omnisharp.json与.editorconfig配置失效问题求助

排查与修复步骤 #

• 确认omnisharp.json位置：必须放在工作区根目录，新版OmniSharp不再优先读取用户级配置文件。
• 统一配置冲突：你的.editorconfig和omnisharp.json存在矛盾项（比如csharp_new_line_before_else和NewLineForElse取值相反），即使关闭了enableEditorConfigSupport，新版OmniSharp仍可能残留.editorconfig的缓存配置，建议将两者的对应项统一。
• 清除OmniSharp缓存：打开VSCode命令面板（Ctrl+Shift+P），执行OmniSharp: Restart OmniSharp，同时删除工作区下的.omnisharp缓存文件夹后重启VSCode。
• 检查VSCode全局设置：打开settings.json，确认"csharp.formatting.style"设置为"custom"，如果是其他预设（如"Visual Studio"）会覆盖自定义的OmniSharp配置。
• 查看OmniSharp日志：执行OmniSharp: Logs命令，检查是否有配置加载失败的报错信息，定位具体问题。

验证方法 #

创建测试代码片段，格式化后检查访问器的大括号是否保持在同一行：

public string DemoProperty { get; set; }

当前提供的配置文件 #

.editorconfig

[*.cs]
csharp_new_line_before_open_brace = none
csharp_new_line_before_else = true
csharp_new_line_before_catch = true
csharp_new_line_before_finally = true
csharp_new_line_before_members_in_object_initializers = true
csharp_new_line_before_members_in_anonymous_types = true
csharp_new_line_between_query_expression_clauses = true

omnisharp.json

{
"RoslynExtensionsOptions": {
    "enableAnalyzersSupport": true
},
"FormattingOptions": {
   "enableEditorConfigSupport": false,
   "newLine": "\n",
   "useTabs": false,
   "tabSize": 4,
   "indentationSize": 4,

   "NewLinesForBracesInTypes": false,
   "NewLinesForBracesInMethods": false,
   "NewLinesForBracesInProperties": false,
   "NewLinesForBracesInAccessors": false,
   "NewLinesForBracesInAnonymousMethods": false,
   "NewLinesForBracesInControlBlocks": false,
   "NewLinesForBracesInAnonymousTypes": false,
   "NewLinesForBracesInObjectCollectionArrayInitializers": false,
   "NewLinesForBracesInLambdaExpressionBody": false,

   "NewLineForElse": false,
   "NewLineForCatch": false,
   "NewLineForFinally": false,
   "NewLineForMembersInObjectInit": false,
   "NewLineForMembersInAnonymousTypes": false,
   "NewLineForClausesInQuery": false
}
}

内容的提问来源于stack exchange，提问作者wanzhi cui