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CriteriaOperator Class

Provides the abstract (MustInherit in Visual Basic) base class for criteria operators.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v24.1.dll

NuGet Package: DevExpress.Data

Declaration

public abstract class CriteriaOperator :
    ICloneable

Remarks

Review the following help topics for more information about criteria operators that can be used in various DevExpress products to build expressions:

Criteria Operators
Lists all the operators provided by DevExpress Data Library.
Build Criteria - Cheat Sheet
Contains examples that illustrate how to build criteria.
LINQ-Like Criteria Syntax
Explains how to implement the CriteriaOperator.FromLambda method to create type-safe criteria expressions from lambda expressions.
Criteria Language Syntax
Contains information about the criteria language that can be used in various DevExpress products to build expressions.
Simplified Criteria Syntax
Lists the DevExpress Data Library features the simplified criteria syntax.
How to: Implement a Custom Criteria Language Function Operator
Implements the MyGetMonth function (similar to the built-in FunctionOperatorType.GetMonth function) based on the DATEPART function supported by the Microsoft Access database engine. The MyGetMonth function returns the month part (as a number) of a specified date.
See Also