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

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

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

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

public virtual Dictionary<string,object> LoadOne( 
   string tableName,
   string whereClause,
   Dictionary<string,object> parameters
)

public: virtual Dictionary<string*,Object*>* LoadOne( 
   string* tableName,
   string* whereClause,
   Dictionary<string*,Object*>* parameters
)

public:
virtual Dictionary<String^,Object^>^ LoadOne( 
   String^ tableName,
   String^ whereClause,
   Dictionary<String^,Object^>^ parameters
)

Parameters

tableName: The database table name
whereClause: A parameterized where clause
parameters: The parameters to use

Return Value

A dictionary of columns and values.

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);
 
string whereClause = "WHERE FirstName = @FirstName and LastName = @LastName";
 
Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters.Add("FirstName", "John");
parameters.Add("LastName", "Smith");
 
Dictionary<string, object> list = db.LoadOne("Persons", whereClause, parameters);
 
Console.WriteLine(list.Count);
 
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 whereClause As String = "WHERE FirstName = @FirstName and LastName = @LastName"
 
Dim parameters As New Dictionary(Of String, Object)()
parameters.Add("FirstName", "John")
parameters.Add("LastName", "Smith")
 
Dim list As Dictionary(Of String, Object) = db.LoadOne("Persons", whereClause, parameters)
 
Console.WriteLine(list.Count)
 
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