ITraceWriterExtensions.Warn Method (ITraceWriter, HttpRequestMessage, String, Exception)
Indicates the warning level of execution.
Namespace: System.Web.Http.Tracing
Assembly: System.Web.Http (in System.Web.Http.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Sub Warn ( _
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.Warn(request, category, _
exception)
public static void Warn(
this ITraceWriter traceWriter,
HttpRequestMessage request,
string category,
Exception exception
)
[ExtensionAttribute]
public:
static void Warn(
ITraceWriter^ traceWriter,
HttpRequestMessage^ request,
String^ category,
Exception^ exception
)
static member Warn :
traceWriter:ITraceWriter *
request:HttpRequestMessage *
category:string *
exception:Exception -> unit
public static function Warn(
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.118) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.118).