Update(String,Dictionary<String,Object>,Dictionary<String,Object>) Method

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

Public Overloads Overridable Function Update( _
   ByVal tableName As String, _
   ByVal parameters As Dictionary(Of String,Object), _
   ByVal compositeKeys As Dictionary(Of String,Object) _
) As Integer

Dim instance As DataHelper
Dim tableName As String
Dim parameters As Dictionary(Of String,Object)
Dim compositeKeys As Dictionary(Of String,Object)
Dim value As Integer
 
value = instance.Update(tableName, parameters, compositeKeys)

public virtual int Update( 
   string tableName,
   Dictionary<string,object> parameters,
   Dictionary<string,object> compositeKeys
)

public: virtual int Update( 
   string* tableName,
   Dictionary<string*,Object*>* parameters,
   Dictionary<string*,Object*>* compositeKeys
)

public:
virtual int Update( 
   String^ tableName,
   Dictionary<String^,Object^>^ parameters,
   Dictionary<String^,Object^>^ compositeKeys
)

Parameters

tableName: The table to update
parameters: What to update
compositeKeys: The primary key values

Return Value

Number of records updated

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==";
 
//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);
 
//Creating parameters
Dictionary<string, object> parms = new Dictionary<string, object>();
parms.Add("FirstName", "John");
parms.Add("LastName", "Smith");
 
//Creating compositeKey
Dictionary<string, object> compositeKeys = new Dictionary<string, object>();
compositeKeys.Add("FirstName", "John");
compositeKeys.Add("LastName", "Smith");
 
//Update a record in the database by a composite key
int result = db.Update("Person", parms, compositeKeys);
 
//Close the database 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()
 
'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)
 
'Creating parameters
Dim parms As New Dictionary(Of String, Object)()
parms.Add("FirstName", "John")
parms.Add("LastName", "Smith")
 
'Creating compositeKey
Dim compositeKeys As New Dictionary(Of String, Object)()
compositeKeys.Add("FirstName", "John")
compositeKeys.Add("LastName", "Smith")
 
'Update a record in the database by a composite key
Dim result As Integer = db.Update("Person", parms, compositeKeys)
 
'Close the database 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