GroupOperator Class

A logical expression which groups two or more operands with a logical AND or OR.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v20.2.dll

NuGet Packages: DevExpress.Data, DevExpress.WindowsDesktop.Data

Declaration

C#

public sealed class GroupOperator :
    CriteriaOperator

VB.NET

Public NotInheritable Class GroupOperator
    Inherits CriteriaOperator

Related API Members

The following members return GroupOperator objects:

• GroupOperator.Clone()

Remarks

The GroupOperator can be used to build criteria expressions when filtering objects. To learn more, see Creating Criteria and Criteria Operators.

Example

This example retrieves the cars that belong in the Saloon category and which cost less than $100,000.

The result is shown in the image below:

C#

xpView1.GroupCriteria = GroupOperator.And(new BinaryOperator("Category", "Saloon"), 
  new BinaryOperator("Price", 100000, BinaryOperatorType.Less));

VB.NET

XPView1.GroupCriteria = GroupOperator.And(New BinaryOperator("Category", "Saloon"), _
  New BinaryOperator("Price", 100000, BinaryOperatorType.Less))

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GroupOperator 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#

XDL_how-to-delete-all-criteria-corresponding-to-a-particular-field-from-criteriaoperator-e3396/CS/WindowsApplication3/CriteriaHelper.cs#L72

CriteriaOperator ICriteriaVisitor<CriteriaOperator>.Visit(GroupOperator theOperator) {
    List<CriteriaOperator> operators = new List<CriteriaOperator>();

VB.NET

XDL_how-to-delete-all-criteria-corresponding-to-a-particular-field-from-criteriaoperator-e3396/VB/WindowsApplication3/CriteriaHelper.vb#L87

Private Function ICriteriaVisitorGeneric_Visit(ByVal theOperator As GroupOperator) As CriteriaOperator Implements ICriteriaVisitor(Of CriteriaOperator).Visit
    Dim operators As New List(Of CriteriaOperator)()

Inheritance

Object

CriteriaOperator

GroupOperator