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.NET Standard 2.0+

AssociationAttribute Class

Identifies the end of an association that is involved in an object relationship.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v22.1.dll

Declaration

[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, Inherited = true)]
public sealed class AssociationAttribute :
    Attribute

Remarks

Apply this attribute to both properties at the ends of the association, specifying an object relationship.

Example

In the following sample code, the Location class might contain several Departments and each Department can in turn span several Locations.

using DevExpress.Xpo;
// ...
public class Location : XPObject {
    public string Name {
        get { return fName; }
        set { SetPropertyValue(nameof(Name), ref fName, value); }
    }
    string fName;

    [Association("Locations-Departments")]
    public XPCollection<Department> Departments { 
        get { return GetCollection<Department>(nameof(Departments)); }
    }
}
public class Department : XPObject {
    public string Name {
        get { return fName; }
        set { SetPropertyValue(nameof(Name), ref fName, value); }
    }
    string fName;

    [Association("Locations-Departments")]
    public XPCollection<Location> Locations { 
        get { return GetCollection<Location>(nameof(Locations)); } 
    }
}

The following code snippets (auto-collected from DevExpress Examples) contain references to the AssociationAttribute class.

Note

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Inheritance

Object
Attribute
AssociationAttribute
See Also