Update<T>(T) Method

Visual Basic (Declaration)
Visual Basic (Usage)
C#
Managed Extensions for C++
C++/CLI

Public Overloads Overridable Function Update(Of T As {Class, New})( _
   ByVal entity As T _
) As T

Dim instance As DataHelper
Dim entity As T
Dim value As T
 
value = instance.Update(Of T)(entity)

public virtual T Update<T>( 
   T entity
)
where T: class, new()

public: virtual T* Update<T>( 
   T* entity
) 
where T: ref class, gcnew()

public:
virtual T^ Updategeneric<typename T>
( 
   T^ entity
) 
where T: ref class, gcnew()

Parameters

entity: The object to update

Type Parameters

T: Generic class type

Return Value

The object refreshed

C#

//Get the current thread static safe instance of the helper
IDataHelper db = DataHelper.SessionFactory();
 
//Specify User Name and License Key from the receipt, leave blank for trial mode
//db.UserName = "John Smith 1234";
//db.LicenseKey = "asdfl219==";
 
//Log to the console
db.EnableLogging();
 
//Open the database connection
db.OpenConnection();
 
//Create a new Person to save to the database
Person currentPerson = new Person();
currentPerson.FirstName = "John";
currentPerson.LastName = "Smith";
 
//Save it to the database 
db.Save(currentPerson);
 
//Change a property
currentPerson.FirstName = "Jane";
 
//Save the change
db.Update<Person>(currentPerson);
 
//Close the connection
db.CloseConnection();

VB.NET

'Get the current thread static safe instance of the helper
Dim db As IDataHelper = DataHelper.SessionFactory()
 
'Specify User Name and License Key from the receipt, leave blank for trial mode
'db.UserName = "John Smith 1234"
'db.LicenseKey = "asdfl219=="
 
'Log to the console
db.EnableLogging()
 
'Open the database connection
db.OpenConnection()
 
'Create a new Person to save to the database
Dim currentPerson As New Person()
currentPerson.FirstName = "John"
currentPerson.LastName = "Smith"
 
'Save it to the database 
db.Save(currentPerson)
 
'Change a property
currentPerson.FirstName = "Jane"
 
'Save the change
db.Update(Of Person)(currentPerson)
 
'Close the connection
db.CloseConnection()

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

DataHelper Class
DataHelper Members
Overload List