UpdateCheck UpdateCheck UpdateCheck UpdateCheck Enum

Definizione

Specifica quando eseguire il test degli oggetti per verificare la presenza di conflitti di concorrenza.Specifies when objects are to be tested for concurrency conflicts.

public enum class UpdateCheck
public enum UpdateCheck
type UpdateCheck = 
Public Enum UpdateCheck
Ereditarietà

Campi

Always Always Always Always 0

Controlla sempre.Always check. Valore predefinito, a meno che IsVersion non sia true per un membro.This is the default unless IsVersion is true for a member.

Never Never Never Never 1

Non controlla mai.Never check.

WhenChanged WhenChanged WhenChanged WhenChanged 2

Controlla solo quando l'oggetto è stato modificato.Check only when the object has been changed.

Esempi

[Column(Storage="_HomePage", DbType="NText", UpdateCheck=UpdateCheck.Never)]
public string HomePage
{
    get
    {
        return this._HomePage;
    }
    set
    {
        if ((this._HomePage != value))
	{
 	    this.OnHomePageChanging(value);
	    this.SendPropertyChanging();
            this._HomePage = value;
	    this.SendPropertyChanged("HomePage");
            this.OnHomePageChanged();
	}
    }
}
<Column(Storage:="_HomePage", DbType:="NText", UpdateCheck:=UpdateCheck.Never)>  _
Public Property HomePage() As String
    Get
        Return Me._HomePage
    End Get
    Set(ByVal value As String)
        If ((Me._HomePage <> value)  _
            = false) Then
	    Me.OnHomePageChanging(value)
            Me.SendPropertyChanging
            Me._HomePage = value
            Me.SendPropertyChanged("HomePage")
            Me.OnHomePageChanged
        End If
    End Set
End Property

Commenti

L'esempio di codice dopo la tabella specifica che HomePage oggetti non dovrebbero mai essere testati.The code example after the table specifies that HomePage objects should never be tested.

Si applica a