BinaryOperator Class
A logical expression which consists of a BinaryOperatorType operation between two operands.
Namespace: DevExpress.Data.Filtering
Assembly: DevExpress.Data.v19.2.dll
Declaration
public class BinaryOperator :
CriteriaOperatorPublic Class BinaryOperator
Inherits CriteriaOperatorRelated API Members
The following members accept/return BinaryOperator objects:
Remarks
The BinaryOperator can be used in search criteria to filter objects. To learn more, see Creating Criteria, Criteria Operators, and NULL Value Handling Specifics.
Examples
The following code demonstrates how to get a collection of "MyObject" objects that match specific criteria. The collection returned is used as a data source for a grid control. In this example, objects that have a value equal to or greater than 20 in their "UnitPrice" field are returned. To create the filter criteria a specific BinaryOperator operator is used.
using DevExpress.Xpo;
using DevExpress.Data.Filtering;
// Custom XP object.
class MyObject : XPObject {
decimal unitPrice;
public decimal UnitPrice {
get { return unitPrice; }
set { unitPrice = value; }
}
//...
}
// Select MyObject objects that match the specified criteria.
decimal filterValue = 20;
gridControl1.DataSource = new XPCollection(Session.DefaultSession, typeof(MyObject),
new BinaryOperator("UnitPrice", filterValue, BinaryOperatorType.GreaterOrEqual));