Variable.DataType Propriété

public:
 property TypeCode DataType { TypeCode get(); };

[Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "DataTypeDesc")]
[System.ComponentModel.Browsable(false)]
public TypeCode DataType { get; }

[<Microsoft.SqlServer.Dts.Runtime.Localization.LocalizablePropertyDescription(typeof(Microsoft.SqlServer.Dts.Runtime.Localized), "DataTypeDesc")>]
[<System.ComponentModel.Browsable(false)>]
member this.DataType : TypeCode

Public ReadOnly Property DataType As TypeCode

Valeur de propriété

Énumération TypeCode qui représente le type de données de la variable.

Attributs

LocalizablePropertyDescriptionAttribute BrowsableAttribute

Exemples

L’exemple suivant crée un package, ajoute une ForEachLoopvariable à la Variables collection du ForEachLoop. Il récupère et définit ensuite les propriétés sur la variable et les affiche pour l’affichage, y compris le DataType.

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   

Exemple de sortie :

Les propriétés de variable sont les suivantes :

Nom de création =

Description = ma nouvelle description v

ID = {622CF328-55D7-4E81-9385-9C1F8450511E}

Ancien nom, nouveau nom = v, my_new_V_name

Ancien espace de noms, nouvel espace de noms = global, my_new_v_Namespace

Nombre de propriétés = 12

Nom qualifié = my_new_v_Namespace::my_new_V_name

old RaiseEvent, new RaiseEvent = False, True

ancienne lecture seule, nouvelle lecture seule = False, True

Variable système = False

Type = Int32

Remarques

La DataType variable n’est pas définie explicitement, mais elle est déduite de la valeur initiale affectée à la variable et ne peut pas être modifiée ultérieurement.

S’applique à