Expression.NotEqual Method (Expression, Expression, Boolean, MethodInfo)
Creates a BinaryExpression that represents an inequality comparison.
Assembly: System.Core (in System.Core.dll)
'Declaration Public Shared Function NotEqual ( _ left As Expression, _ right As Expression, _ liftToNull As Boolean, _ method As MethodInfo _ ) As BinaryExpression
- Type: System.Boolean
true to set IsLiftedToNull to true; false to set IsLiftedToNull to false.
left or right is Nothing.
method is not Nothing and the method it represents returns void, is not static (Shared in Visual Basic), or does not take exactly two arguments.
method is Nothing and the inequality operator is not defined for left.Type and right.Type.
The resulting BinaryExpression has the Method property set to the implementing method. The Type property is set to the type of the node. If the node is lifted, the IsLifted property is true and the IsLiftedToNull property is equal to liftToNull. Otherwise, they are both false. The Conversion property is Nothing.
The following information describes the implementing method, the node type, and whether a node is lifted.
The following rules determine the implementing method for the operation:
If method is not Nothing and it represents a non-void, static (Shared in Visual Basic) method that takes two arguments, it is the implementing method.
Otherwise, the implementing method is Nothing.
Node Type and Lifted versus Non-Lifted
If the implementing method is not Nothing:
If left.Type and right.Type are assignable to the corresponding argument types of the implementing method, the node is not lifted. The type of the node is the return type of the implementing method.
left.Type and right.Type are both value types of which at least one is nullable and the corresponding non-nullable types are equal to the corresponding argument types of the implementing method.
The return type of the implementing method is Boolean.
If the implementing method is Nothing:
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