UnaryOperatorType Enum

Enumerates unary operator types.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v18.1.dll

Declaration

C#

public enum UnaryOperatorType

VB.NET

Public Enum UnaryOperatorType

Members

Name	Description
BitwiseNot	Represents the bitwise NOT operator. To create the bitwise NOT operator using the CriteriaOperator.Parse method use the following syntax: CriteriaOperator.Parse(“~Field1”)
Plus	Represents the unary plus (+) operator.
Minus	Represents the unary negation (-) operator. To create the unary negation operator using the CriteriaOperator.Parse method use the following syntax: CriteriaOperator.Parse(“-Field1 = -10”)
Not	Represents the logical NOT. To create the logical NOT operator using the CriteriaOperator.Parse method use the following syntax: CriteriaOperator.Parse(“NOT ((Field1 = A) OR (Field1 = B))”)
IsNull	Represents the operator which determines whether or not a given expression is NULL. To create the is-null operator using the CriteriaOperator.Parse method use the following syntax: CriteriaOperator.Parse(“Field1 IS NULL”)

Remarks

The UnaryOperatorType enumeration contains unary operator types that can be used to create expressions via the UnaryOperator objects.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the UnaryOperatorType enum.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XDL_how-to-create-a-custom-converter-to-convert-the-criteriaoperator-to-the-systemstring-type-e3347/CS/CriteriaVisitorExample/CustomCriteriaToStringParser.cs#L20

static string GetUnaryOperationName(UnaryOperatorType operatorType) {
    switch (operatorType) {

VB.NET

XDL_how-to-create-a-custom-converter-to-convert-the-criteriaoperator-to-the-systemstring-type-e3347/VB/CriteriaVisitorExample/CustomCriteriaToStringParser.vb#L26

Private Shared Function GetUnaryOperationName(ByVal operatorType As UnaryOperatorType) As String
    Select Case operatorType