DevExpress.Mvvm.v23.1.DataModel Contains MVVM-aware classes. The database-independent exception used in Data Layer and View Model Layer to handle database errors. Initializes a new instance of the class. An error message text. An error message caption text. An underlying exception. The error message caption text. The error message text. Represents the state of the entity relative to the unit of work. The object is new, has been added to the unit of work, and the IUnitOfWork.SaveChanges method has not been called. After the changes are saved, the object state changes to EntityState.Unchanged. The object has been deleted from the unit of work. After the changes are saved, the object state changes to EntityState.Detached. The object exists but is not being tracked. An entity is in this state immediately after it has been created and before it is added to the unit of work. An entity is also in this state after it has been removed from the unit of work by calling the IUnitOfWork.Detach method. One of the scalar properties on the object has been modified and the IUnitOfWork.SaveChanges method has not been called. After the changes are saved, the object state changes to EntityState.Unchanged. The object has not been modified since it was attached to the unit of work or since the last time that the IUnitOfWork.SaveChanges method was called. A data source suitable as an Instant Feedback source. The GetList() method of the base IListSource interface is expected to return an instance of an internal type that happens to implement the IList interface. As such the IInstantFeedbackSource interface can only be implemented as a wrapper for an existing Instant Feedback source, e.g. or . Get the value of a property. A proxy object. An expression specifying the property which value is to be fetched. Check if a proxy object is in the Loaded state. If a proxy object is not in the Loaded state, its properties have not yet been initialized. Invalidate all loaded entities. This method is used to make changes made to the data source visible to consumers if this Instant Feedback source. Currently, in scaffolded implementations this method only works for WCF when the MergeOption set to NoTracking and for EntityFramework when a projection is used. The IReadOnlyRepository interface represents the read-only implementation of the Repository pattern such that it can be used to query entities of a given type. The owner unit of work. The IRepository interface represents the read and write implementation of the Repository pattern such that it can be used to query entities of a given type. Marks the given entity as Added such that it will be commited to the store when IUnitOfWork.SaveChanges is called. The entity to add. Creates a new instance of the entity type. A flag determining if the newly created entity is added to the repository. The created instance. Finds an entity with the given primary key value. The value of the primary key for the entity to be found. The entity with the given primary key value. null if no entity is found. Returns the primary key value for the entity. An entity for which to obtain a primary key value. A primary key value for the entity. Gets the lambda-expression that returns the entity primary key. The lambda-expression that returns the entity primary key. Returns the state of the given entity. An entity to get the state from. The state of the given entity. Determines whether the given entity has the primary key assigned (the primary key is not null). An entity to test. true if the given entity has the primary key assigned (the primary key is not null); otherwise, false. Reloads the entity from the store overwriting any property values with values from the store and returns a reloaded entity. An entity to reload. The reloaded entity. Marks the given entity as EntityState.Deleted such that it will be deleted from the store when IUnitOfWork.SaveChanges is called. The entity to remove. Assigns the given primary key value to a given entity. An entity to which to assign the primary key value. A primary key value. Changes the state of the specified entity to EntityState.Modified if changes are not automatically tracked by the implementation. An entity which state should be updated. The IRepositoryQuery interface represents an extension of IQueryable designed to provide an ability to specify the related objects to include in the query results. Specifies the related objects to include in the query results. A lambda expression that represents the path to include. Filters a sequence of entities based on the given predicate. A function to test each entity for a condition. The IUnitOfWork interface represents the Unit Of Work pattern such that it can be used to query from a database and group together changes that will then be written back to the store as a unit. Checks if the unit of work is tracking any new, deleted, or changed entities or relationships that will be sent to the store if IUnitOfWork.SaveChanges is called. true if the unit of work is tracking any new, deleted, or changed entities or relationships; otherwise, false. Saves all changes made in this unit of work to the underlying store. Provides the method to create a unit of work of a given type. Creates a new IInstantFeedbackSource instance. Creates a new unit of work. Provides a set of extension methods to perform commonly used operations with . Combines an initial projection and a predicate into a new projection with the effect of both. A function to test each element for a condition. A LINQ function used to transform entities from repository entity type to projection entity type. A new projection. Creates an IQueryable representing a sequence of entities from a repository filtered by a given predicate. A repository. A function to test each element for a condition. Creates an IQuerable representing a sequence of entities from a repository filtered by a given predicate and projected to a specified projection entity type by a given LINQ function. A repository. A LINQ function used to transform entities from repository entity type to projection entity type. Provides a set of extension methods to perform commonly used operations with . Loads from the store or updates an entity with the given primary key value. If no entity with the given primary key is found in the store, returns null. A repository. A LINQ function used to transform entities from the repository entity type to the projection entity type. A value to compare with the entity primary key. The entity with the given primary key value. null if no entity is found. Returns the entity that corresponds to the specified projection. A repository. A projection. An action which applies the projection properties to the newly created entity. The entity that corresponds to the specified projection. Returns a primary key of the given entity. A repository. An entity. The primary key of the given entity. Builds a lambda expression that compares an entity primary key with the given constant value. A repository. A value to compare with the entity primary key. The lambda expression. Gets whether the given entity is detached from the unit of work. A repository. An entity. true if the given entity is detached from the unit of work; otherwise, false. Determines whether the given entity has the primary key assigned (the primary key is not null). A repository. An entity. true if the given entity has the primary key assigned; otherwise, false. Sets the primary key of a given projection. A repository. A projection. A new primary key value. The base class that helps to implement the interface as a wrapper over an existing IQueryable instance. The base class for unit of works that provides the storage for repositories. Initializes a new instance of the class. Contains MVVM-aware utility classes. Provides the extension method for implementations of the IQueryable interface. Forces entities to be loaded locally from the IQueryable instance. An instance of the IQueryable interface from which to load entities. Incapsulates operations to obtain and set the primary key value of a given entity. Initializes a new instance of the class. A function that returns the primary key value of a given entity. An action that assigns the primary key value to a given entity. A function that determines whether given the entity has a primary key assigned. The function that returns the primary key value of a given entity. A function that determines whether the given entity has a primary key assigned (the primary key is not null). Always returns true if the primary key is a non-nullable value type. The action that assigns the primary key value to a given entity. Provides methods to perform operations with lambda expression trees. Returns an instance of the EntityTraits class that encapsulates operations to obtain and set the primary key value of a given entity. An instance of the TOwner type which type is used as a key to cache compiled lambda expressions.A lambda expression that returns the primary key value for a given entity. A lambda expression that returns the primary key value for a given entity. Gets an array of PropertyInfo objects that describe the properties that comprise the primary key of the TPropertyOwner type. An expression that when compiled and evaluated returns the value of the primary key of an TPropertyOwner object. If value is a Tuple, this method collects its items into an array of objects. For other types it creates an array of objects with the value being its only element. An object from which an array of objects is created. It it supposed to be a primary key value. Get an expression with incapsulating a lamda that given an object of type TOwner returns the value of property propertyName. The name of a property. The type of a property. Converts a property reference represented as a lambda expression to a property name. A lambda expression that returns the property value. Determines whether the given entity satisfies the condition represented by a lambda expression. An object to test. A function that determines whether the given object satisfies the condition. Creates an instance of a generic Tuple type from items. Objects that will comprise the tuple.