Override != so the equals comparison using this operator will be the same as ! Equals
MSBuild is now included in Visual Studio instead of the .NET Framework. You can use MSBuild 12.0 side-by-side with versions previously deployed with the .NET Framework.For more information, see What's New in MSBuild 12.0.
Namespace:  Microsoft.Build.Framework
Assembly:  Microsoft.Build.Framework (in Microsoft.Build.Framework.dll)
Syntax
'Declaration
Public Shared Operator <> ( _
    left As BuildEventContext, _
    right As BuildEventContext _
) As Boolean
public static bool operator !=(
    BuildEventContext left,
    BuildEventContext right
)
public:
static bool operator !=(
    BuildEventContext^ left, 
    BuildEventContext^ right
)
static let inline(<>)
        left:BuildEventContext * 
        right:BuildEventContext  : bool
JScript does not support overloaded operators.
Parameters
- left 
 Type: Microsoft.Build.Framework.BuildEventContext- Left hand side operand 
- right 
 Type: Microsoft.Build.Framework.BuildEventContext- Right hand side operand 
Return Value
Type: System.Boolean
True if the object values are not identical, false if they are identical
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.