UseWhenExtensions.UseWhen 方法

定義

有條件地在要求管線中建立分支,以重新加入主要管線。

public:
[System::Runtime::CompilerServices::Extension]
 static Microsoft::AspNetCore::Builder::IApplicationBuilder ^ UseWhen(Microsoft::AspNetCore::Builder::IApplicationBuilder ^ app, Func<Microsoft::AspNetCore::Http::HttpContext ^, bool> ^ predicate, Action<Microsoft::AspNetCore::Builder::IApplicationBuilder ^> ^ configuration);
public static Microsoft.AspNetCore.Builder.IApplicationBuilder UseWhen (this Microsoft.AspNetCore.Builder.IApplicationBuilder app, Func<Microsoft.AspNetCore.Http.HttpContext,bool> predicate, Action<Microsoft.AspNetCore.Builder.IApplicationBuilder> configuration);
static member UseWhen : Microsoft.AspNetCore.Builder.IApplicationBuilder * Func<Microsoft.AspNetCore.Http.HttpContext, bool> * Action<Microsoft.AspNetCore.Builder.IApplicationBuilder> -> Microsoft.AspNetCore.Builder.IApplicationBuilder
<Extension()>
Public Function UseWhen (app As IApplicationBuilder, predicate As Func(Of HttpContext, Boolean), configuration As Action(Of IApplicationBuilder)) As IApplicationBuilder

參數

predicate
Func<HttpContext,Boolean>

以要求環境叫用以判斷是否應該採用分支

configuration
Action<IApplicationBuilder>

設定要採用的分支

傳回

適用於