BinaryOperator Class
A logical expression which consists of a BinaryOperatorType operation between two operands.
Namespace: DevExpress.Data.Filtering
Assembly: DevExpress.Data.v21.1.dll
NuGet Package: DevExpress.Data
Declaration
Related API Members
The following members return BinaryOperator objects:
Remarks
The BinaryOperator can be used in search criteria to filter objects. To learn more, see Simplified Criteria Syntax, Criteria Operators, and NULL Value Handling Specifics.
Example
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));
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the BinaryOperator class.
Note
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