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FederationRelationColumnInfo Class
Describes the relation and contains key column names and a relation condition operator.
Namespace: DevExpress.DataAccess.DataFederation
Assembly: DevExpress.DataAccess.v19.1.dll
Declaration
public sealed class FederationRelationColumnInfo :
RelationColumnInfoBasePublic NotInheritable Class FederationRelationColumnInfo
Inherits RelationColumnInfoBaseRemarks
The FederationMasterDetailInfo.KeyColumns property provides access to the list of FederationRelationColumnInfo objects.
Examples
To create a master-detail relationship between two queries, add an instance of the FederationMasterDetailInfo object to the Relations collection:
NOTE
The complete sample project How to Create a Federated Data Source at Runtime is available in the DevExpress Examples repository.
using DevExpress.DataAccess.DataFederation;
// ...
federation.Relations.Add(new FederationMasterDetailInfo() {
MasterQueryName = "Orders",
DetailQueryName = "OrderDetail",
KeyColumns = {
new FederationRelationColumnInfo(){
ParentKeyColumn="OrderID",
NestedKeyColumn ="OrderID",
ConditionOperator= FederationConditionType.Equal
}
}
}
Inheritance
Object
DevExpress.DataAccess.RelationColumnInfoBase
FederationRelationColumnInfo
See Also
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