Dao<TEntity, TEntityCollection, TDataContext, TFilteringCriteria, TOrderingCriteria, TPagingCriteria, TCarboniteController, TTransaction, TTransactionCreationParameters>.OnGetFirst Method

By calling the Get method to retrieve all TEntity entities and then picking the first of them, this inversion control method handles the request to obtain the first from the underlying data store.

Namespace: Keystone.Carbonite
Assembly: Keystone.Carbonite (in Keystone.Carbonite.dll)

Syntax

C++

JScript

Copy

protected virtual TEntity OnGetFirst()

This language is not supported or no code example is available.

Return Value

The first TEntity obtained from the underlying data store, or null reference (Nothing in Visual Basic) if none exists.

Platforms

Windows, Windows Server, OS X, macOS, iOS, tvOS, Android, Linux, AWS, Azure

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Framework

Supported in: 4.6

Others

Xamarin, Mono

Reference

Dao<TEntity, TEntityCollection, TDataContext, TFilteringCriteria, TOrderingCriteria, TPagingCriteria, TCarboniteController, TTransaction, TTransactionCreationParameters> Class
Dao<TEntity, TEntityCollection, TDataContext, TFilteringCriteria, TOrderingCriteria, TPagingCriteria, TCarboniteController, TTransaction, TTransactionCreationParameters> Members
Keystone.Carbonite Namespace