SuppressMessageAttribute.MessageId SuppressMessageAttribute.MessageId SuppressMessageAttribute.MessageId SuppressMessageAttribute.MessageId Property


Gets or sets an optional argument expanding on exclusion criteria.

 property System::String ^ MessageId { System::String ^ get(); void set(System::String ^ value); };
public string MessageId { get; set; }
member this.MessageId : string with get, set
Public Property MessageId As String

Property Value

A string containing the expanded exclusion criteria.


The following code example shows the use of the SuppressMessageAttribute attribute to suppress warnings for a specific parameter in a method declaration and a specific field in the method. This code example is part of a larger example provided for the SuppressMessageAttribute class.

[SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "isChecked")]
[SuppressMessage("Microsoft.Performance", "CA1804:RemoveUnusedLocals", MessageId = "fileIdentifier")]
static void FileNode(string name, bool isChecked)
    string fileIdentifier = name;
    string fileName = name;
    string version = String.Empty;
<SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId:="isChecked"), _
 SuppressMessage("Microsoft.Performance", "CA1804:RemoveUnusedLocals", MessageId:="fileIdentifier")> _
Shared Sub FileNode(ByVal name As String, ByVal isChecked As Boolean)
    Dim fileIdentifier As String = name
    Dim fileName As String = name
    Dim version As String = String.Empty

End Sub 'FileNode


The MessageId property is an optional argument that specifies additional exclusion where the literal metadata target is not sufficiently precise. For example, the SuppressMessageAttribute cannot be applied within a method, and it may be desirable to suppress a violation against a statement in the method that will give a rule violation, but not against all statements in the method.

Applies to