NotOperator Class

Represents a logical NOT operation which is performed on the operand.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v18.1.dll

Declaration

C#

public sealed class NotOperator :
    UnaryOperator

VB.NET

Public NotInheritable Class NotOperator
    Inherits UnaryOperator

Example

This sample code selects customers who are younger than 20 years old, and older than 25.

The image below shows the result:

C#

using DevExpress.Xpo;
using DevExpress.Data.Filtering;

// ...

CriteriaOperator filter = new NotOperator(new BetweenOperator("Age", 20, 25));
xpCustomers.Filter = filter;

VB.NET

Imports DevExpress.Xpo
Imports DevExpress.Data.Filtering

' ...

Dim filter As CriteriaOperator = New NotOperator(New BetweenOperator("Age", 20, 25))
xpCustomers.Filter = filter

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the NotOperator class.

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#

how-to-apply-filtering-to-a-dashboard-items-data-in-olap-mode-e5148/CS/Dashboard_OlapFiltering/Form1.cs#L33

                   BinaryOperatorType.Equal),
new NotOperator(new InOperator(new OperandProperty(fieldYearName),
                               new ConstantValue[] { new ConstantValue(year2001),

aspxdashboard-how-to-apply-filtering-to-a-dashboard-items-data-in-olap-mode-t481105/CS/ASPxDashboard_OlapFiltering/WebForm1.aspx.cs#L35

                   BinaryOperatorType.Equal),
new NotOperator(new InOperator(new OperandProperty(fieldYearName),
                               new ConstantValue[] { new ConstantValue(year2001),

web-dashboard-apply-item-filtering-olap-mode/CS/ASPxDashboard_OlapFiltering/WebForm1.aspx.cs#L35

                   BinaryOperatorType.Equal),
new NotOperator(new InOperator(new OperandProperty(fieldYearName),
                               new ConstantValue[] { new ConstantValue(year2001),

VB.NET

how-to-apply-filtering-to-a-dashboard-items-data-in-olap-mode-e5148/VB/Dashboard_OlapFiltering/Form1.vb#L36

                   BinaryOperatorType.Equal), _
New NotOperator(New InOperator(New OperandProperty(fieldYearName), _
                               New ConstantValue() {New ConstantValue(year2001), _

aspxdashboard-how-to-apply-filtering-to-a-dashboard-items-data-in-olap-mode-t481105/VB/ASPxDashboard_OlapFiltering/WebForm1.aspx.vb#L36

                   BinaryOperatorType.Equal),
New NotOperator(New InOperator(New OperandProperty(fieldYearName),
                               New ConstantValue() {New ConstantValue(year2001),

web-dashboard-apply-item-filtering-olap-mode/VB/ASPxDashboard_OlapFiltering/WebForm1.aspx.vb#L36

                   BinaryOperatorType.Equal),
New NotOperator(New InOperator(New OperandProperty(fieldYearName),
                               New ConstantValue() {New ConstantValue(year2001),

Inheritance

Object

CriteriaOperator

UnaryOperator

NotOperator