Association: Project_Assignments_Assignment_Project (ProjectData service)
In this article
Definition
Attributes
Parent element
Child elements
The Project_Assignments_Assignment_Project association relates a project to the assignments that it contains and relates assignments to a project.
Definition
<Association Name="Project_Assignments_Assignment_Project">
<End Type="ReportingData.Assignment" Role="Assignment_Project" Multiplicity="*" />
<End Type="ReportingData.Project" Role="Project_Assignments" Multiplicity="0..1" />
</Association>
Attributes
Attribute |
Value |
Description |
|---|---|---|
Name |
Project_Assignments_Assignment_Project |
Identifies the entity types and the navigation properties that form the two-way association for projects and assignments. In the first half of the name, Project is the entity type and Assignments is the navigation property. In the second half of the name, Assignment is the entity type and Project is the navigation property. |
Parent element
Element |
Description |
|---|---|
The schema for the reporting data in the ProjectData service. |
Child elements
The Project_Assignments_Assignment_Project association element contains two End elements that represent opposite ends of the association. The Role attribute is a lookup key that enables a navigational property to specify the direction in the association. The Multiplicity attribute refers to the entity type. Multiplicity indicates the number of entities that can be related at each end of the association: zero or one (0..1), or many (*). The Microsoft .NET implementation of OData uses 0..1 when the navigational property points to a single entity, rather than to an entity set.
Attributes of the End elements for the Project_Assignments association
Role |
Type |
Multiplicity |
Description |
|---|---|---|---|
Project_Assignments |
0..1 |
There is one project entity that corresponds to a collection of assignments. |
|
Assignment_Project |
* |
There can be many assignment entities that correspond with a project. |
Remarks
One end of the association is the Project entity, and the other end is the Assignment entity. The Project entity type contains the Assignments navigation property, where the FromRole defines Project_Assignments as the start of the association to get the collection of assignments in a project. Similarly, the Assignment entity type contains the Project navigation property, where the FromRole defines Assignment_Project as the start of the association to get the project that that is associated with a collection of assignments.