/1[], String, Exception)

Displays an error message in the list with the specified writer, request, category and exception.

Namespace:  System.Web.Http.Tracing
Assembly:  System.Web.Http (in System.Web.Http.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Sub Error ( _
    traceWriter As ITraceWriter, _
    request As HttpRequestMessage, _
    category As String, _
    exception As Exception _
)
'Usage
Dim traceWriter As ITraceWriter 
Dim request As HttpRequestMessage 
Dim category As String 
Dim exception As Exception 

traceWriter.Error(request, category, _
    exception)

public static void Error(
    this ITraceWriter traceWriter,
    HttpRequestMessage request,
    string category,
    Exception exception
)

[ExtensionAttribute]
public:
static void Error(
    ITraceWriter^ traceWriter, 
    HttpRequestMessage^ request, 
    String^ category, 
    Exception^ exception
)

static member Error : 
        traceWriter:ITraceWriter * 
        request:HttpRequestMessage * 
        category:string * 
        exception:Exception -> unit

public static function Error(
    traceWriter : ITraceWriter, 
    request : HttpRequestMessage, 
    category : String, 
    exception : Exception
)

Parameters

• traceWriter
  Type: System.Web.Http.Tracing.ITraceWriter

  The ITraceWriter.

• request
  Type: HttpRequestMessage

  The HttpRequestMessage with which to associate the trace. It may be null.

• category
  Type: System.String

  The logical category of the trace.

• exception
  Type: System.Exception

  The error occurred during execution.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ITraceWriter. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.108) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).

See Also

Reference

ITraceWriterExtensions Class

Error Overload

System.Web.Http.Tracing Namespace