RepositoryExtensions.ProjectionHasPrimaryKey<TEntity, TProjection, TPrimaryKey>(IRepository<TEntity, TPrimaryKey>, TProjection) Method
Determines whether the given entity has the primary key assigned (the primary key is not null).
Namespace: DevExpress.Mvvm.DataModel
Assembly: DevExpress.Mvvm.v24.2.DataModel.dll
NuGet Package: DevExpress.Scaffolding.Core
Declaration
public static bool ProjectionHasPrimaryKey<TEntity, TProjection, TPrimaryKey>(
this IRepository<TEntity, TPrimaryKey> repository,
TProjection projectionEntity
)
where TEntity : class
Parameters
Name | Type | Description |
---|---|---|
repository | IRepository<TEntity, TPrimaryKey> | A repository. |
projectionEntity | TProjection | An entity. |
Type Parameters
Name |
---|
TEntity |
TProjection |
TPrimaryKey |
Returns
Type | Description |
---|---|
Boolean | true if the given entity has the primary key assigned; otherwise, false. |
Remarks
The ProjectionHasPrimaryKey<TEntity, TProjection, TPrimaryKey> function always returns true if the primary key is a non-nullable value type.
See Also