GetMaxPrimaryKey<T>() Method

Get the maximum for the primary key for an object type

Syntax

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

Public Overloads Function GetMaxPrimaryKey(Of T As {Class, New})() As Long

Dim instance As DataHelper
Dim value As Long
 
value = instance.GetMaxPrimaryKey(Of T)()

public long GetMaxPrimaryKey<T>()
where T: class, new()

public: long GetMaxPrimaryKey<T>(); 
where T: ref class, gcnew()

public:
int64 GetMaxPrimaryKeygeneric<typename T>
(); 
where T: ref class, gcnew()

Type Parameters

T: Generic class type

Example

//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==";
 
//Open the database connection
db.OpenConnection();
 
long result = GetMaxPrimaryKey<Customer>();
 
//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=="
 
'Open the database connection
db.OpenConnection()
 
Dim result As Long = GetMaxPrimaryKey(Of Customer)()
 
'Close the connection
db.CloseConnection()

Requirements

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