Właściwość Variable.Value
Pobiera lub ustawia wartość przypisana do zmiennej.
Przestrzeń nazw: Microsoft.SqlServer.Dts.Runtime
Zestaw: Microsoft.SqlServer.ManagedDTS (w Microsoft.SqlServer.ManagedDTS.dll)
Składnia
'Deklaracja
Public Property Value As Object
Get
Set
'Użycie
Dim instance As Variable
Dim value As Object
value = instance.Value
instance.Value = value
public Object Value { get; set; }
public:
property Object^ Value {
Object^ get ();
void set (Object^ value);
}
member Value : Object with get, set
function get Value () : Object
function set Value (value : Object)
Wartość właściwości
Typ: System.Object
Obiekt, który zawiera wartość zmiennej.
Przykłady
Poniższy przykład tworzy pakiet, dodaje ForEachLoopi dodaje zmienną do Variables kolekcja ForEachLoop.Następnie pobiera i ustawia właściwości w zmiennej i wyświetla je do oglądania, łącznie z RaiseChangedEvent.
static void Main(string[] args)
{
Package p = new Package();
// Add a sequence to the package executables collection
Sequence seq = (Sequence)p.Executables.Add("STOCK:SEQUENCE");
// Add a ForEachLoop to the Sequence
ForEachLoop feLoop = (ForEachLoop)seq.Executables.Add("STOCK:FOREACHLOOP");
// Add a variable, v, to the variable collection
// of the ForEach loop.
Variable v = feLoop.Variables.Add("v", false, "global", 100);
// Get and set different variable properties
// Creation Name (read-only)
String createName = v.CreationName;
// Description (read/write)
v.Description = "my new v Description";
String vDesc = v.Description;
// ID (read-only)
String vID = v.ID;
// Name (read/write)
String oldName = v.Name;
v.Name = "my_new_V_name";
String newName = v.Name;
// Namespace (read/write)
String oldNamespace = v.Namespace;
v.Namespace = "my_new_v_Namespace";
String newNamespace = v.Namespace;
// Properties (read-only)
int pmCount = v.Properties.Count;
// Qualified Name (read-only)
String QName = v.QualifiedName;
// RaiseChangedEvent (read/write)
Boolean oldraiseChEvt = v.RaiseChangedEvent;
v.RaiseChangedEvent = true;
Boolean raiseChangedEvent = v.RaiseChangedEvent;
// Read-only (read/write)
Boolean vReadOnly = v.ReadOnly;
v.ReadOnly = true;
Boolean newVReadOnly = v.ReadOnly;
// System Variable (read-only)
Boolean sysVar = v.SystemVariable;
// Type (read-only)
TypeCode type = v.DataType;
// Value (read/write)
Object vValue = v.Value;
Console.WriteLine("The variable properties are: ");
Console.WriteLine("Creation Name = {0}", createName);
Console.WriteLine("Description = {0}", vDesc);
Console.WriteLine("ID = {0}", vID);
Console.WriteLine("Old name, new name = {0}, {1}", oldName, newName);
Console.WriteLine("Old namespace, new namespace = {0}, {1}", oldNamespace, newNamespace);
Console.WriteLine("Properties count = {0}", pmCount);
Console.WriteLine("Qualified Name = {0}", QName);
Console.WriteLine("old RaiseEvent, new RaiseEvent = {0}, {1}", oldraiseChEvt, raiseChangedEvent);
Console.WriteLine("old read-only, new read-only = {0}, {1}", vReadOnly, newVReadOnly);
Console.WriteLine("System Variable = {0}", sysVar);
Console.WriteLine("Type = {0}", type);
}
Shared Sub Main(ByVal args() As String)
Dim p As New Package()
' Add a sequence to the package executables collection
Dim seq As Sequence = CType(p.Executables.Add("STOCK:SEQUENCE"), Sequence)
' Add a ForEachLoop to the Sequence
Dim feLoop As ForEachLoop = CType(seq.Executables.Add("STOCK:FOREACHLOOP"), ForEachLoop)
' Add a variable, v, to the variable collection
' of the ForEach loop.
Dim v As Variable = feLoop.Variables.Add("v", False, "global", 100)
' Get and set different variable properties
' Creation Name (read-only)
Dim createName As String = v.CreationName
' Description (read/write)
v.Description = "my new v Description"
Dim vDesc As String = v.Description
' ID (read-only)
Dim vID As String = v.ID
' Name (read/write)
Dim oldName As String = v.Name
v.Name = "my_new_V_name"
Dim newName As String = v.Name
' Namespace (read/write)
Dim oldNamespace As String = v.Namespace
v.Namespace = "my_new_v_Namespace"
Dim newNamespace As String = v.Namespace
' Properties (read-only)
Dim pmCount As Integer = v.Properties.Count
' Qualified Name (read-only)
Dim QName As String = v.QualifiedName
' RaiseChangedEvent (read/write)
Dim oldraiseChEvt As [Boolean] = v.RaiseChangedEvent
v.RaiseChangedEvent = True
Dim raiseChangedEvent As [Boolean] = v.RaiseChangedEvent
' Read-only (read/write)
Dim vReadOnly As [Boolean] = v.ReadOnly
v.ReadOnly = True
Dim newVReadOnly As [Boolean] = v.ReadOnly
' System Variable (read-only)
Dim sysVar As [Boolean] = v.SystemVariable
' Type (read-only)
Dim type As TypeCode = v.DataType
' Value (read/write)
Dim vValue As [Object] = v.Value
Console.WriteLine("The variable properties are: ")
Console.WriteLine("Creation Name = {0}", createName)
Console.WriteLine("Description = {0}", vDesc)
Console.WriteLine("ID = {0}", vID)
Console.WriteLine("Old name, new name = {0}, {1}", oldName, newName)
Console.WriteLine("Old namespace, new namespace = {0}, {1}", oldNamespace, newNamespace)
Console.WriteLine("Properties count = {0}", pmCount)
Console.WriteLine("Qualified Name = {0}", QName)
Console.WriteLine("old RaiseEvent, new RaiseEvent = {0}, {1}", oldraiseChEvt, raiseChangedEvent)
Console.WriteLine("old read-only, new read-only = {0}, {1}", vReadOnly, newVReadOnly)
Console.WriteLine("System Variable = {0}", sysVar)
Console.WriteLine("Type = {0}", type)
End Sub
Przykładowe dane wyjściowe:
Zmienna właściwości są:
Nazwa tworzenia =
Opis = Mój nowy v opis
IDENTYFIKATOR = {622CF328-55 D 7-4E81-9385-9C1F8450511E}
Stara nazwa, Nowa nazwa = v my_new_V_name
Stare obszaru nazw, nowy obszar nazw = globalnym, my_new_v_Namespace
Liczba właściwości = 12
Nazwa kwalifikowana = my_new_v_Namespace::my_new_V_name
stare RaiseEvent, nowe RaiseEvent False, = True
stary tylko do odczytu, nowy czytać-tylko = FAŁSZ, PRAWDA
Zmienna = False.
= Typu Int32.