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

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

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

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

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

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

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

Parameters

tableName: The table name
parameters: The parameters for the where clause

Return Value

Number of records deleted

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);
 
Dictionary<string, object> parameters = new Dictionary<string, object>();
 
parameters.Add("FirstName","John");
parameters.Add("LastName","Smith");
 
int result = db.Delete("Persons", parameters);
 
//This is the number of records deleted
Console.WriteLine(result);
 
//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)
 
Dim parameters As New Dictionary(Of String, Object)()
 
parameters.Add("FirstName","John")
parameters.Add("LastName","Smith")
 
Dim result As Integer = db.Delete("Persons", parameters)
 
'This is the number of records deleted
Console.WriteLine(result)
 
'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