Code Inspection: Multiple nullable attributes usage

Category	Common Practices and Code Improvements
ID	`MultipleNullableAttributesUsage`
EditorConfig	`resharper_multiple_nullable_attributes_usage_highlighting`
Default severity	Warning
Language	C#, VB.NET
Requires SWA	No

NotNull and CanBeNull attributes can be used to indicate whether or not a parameter or a return value can be null. But consider the following code:

public void SetName([CanBeNull][NotNull]string name)
{
  myName = name;
}
        

Public Sub SetName(<CanBeNull> <NotNull> name As String)
    myName = name
End Sub

        

This annotation does not make much sense since the two assertions contradict each other.

Last modified: 15 April 2024