SqlCeConnection.FlushFailure Event

Articolo
01/14/2011

Si verifica quando lo svuotamento in background ha esito negativo.

Spazio dei nomi: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Sintassi

'Dichiarazione
Public Event FlushFailure As SqlCeFlushFailureEventHandler

public event SqlCeFlushFailureEventHandler FlushFailure

public:
event SqlCeFlushFailureEventHandler^ FlushFailure {
    void add (SqlCeFlushFailureEventHandler^ value);
    void remove (SqlCeFlushFailureEventHandler^ value);
}

/** @event */
public void add_FlushFailure (SqlCeFlushFailureEventHandler value)

/** @event */
public void remove_FlushFailure (SqlCeFlushFailureEventHandler value)

JScript supporta l'utilizzo di eventi, ma non la dichiarazione di nuovi eventi.

Esempio

Nell'esempio seguente viene illustrato come utilizzare l'evento FlushFailure:

Public Sub Snippet4()
    Dim conn As SqlCeConnection = Nothing

    Try
        conn = New SqlCeConnection("Data Source = MyDatabase.sdf; Password ='<pwd>'")
        
        AddHandler conn.FlushFailure, AddressOf conn_FlushFailure
       
        conn.Open()
        
        'Flush failure occurs here
        'OnFlushFailure will be called from the background thread.
       
       
    Finally
        conn.Close()
    End Try
    
End Sub

Private Sub conn_FlushFailure(ByVal sender As System.Object, ByVal e As SqlCeFlushFailureEventArgs)
    
    Dim errors As SqlCeErrorCollection = e.Errors
    Console.WriteLine("Flush Failure: " + errors(0).Message)
    
End Sub

// using System;
// using System.Xml;
// using System.Data;
// using System.Data.SqlServerCe;
// using System.Data.Common;
// using System.Windows.Forms;
/// <summary>
/// Demonstrates the usage of the FlushFailure event
/// </summary>
public class MyForm : Form
{
    public void Snippet4()
    {
                
        SqlCeConnection conn = new SqlCeConnection();
        
        conn.FlushFailure+=new SqlCeFlushFailureEventHandler(conn_FlushFailure);

        conn.Open();
        
        //Flush failure occurs here
        //OnFlushFailure will be called from the background thread.
 
        conn.Close();       
    }
    void conn_FlushFailure(object sender, SqlCeFlushFailureEventArgs e)
    {
        SqlCeErrorCollection errors = e.Errors;
        Console.WriteLine("Flush Failure:" + errors[0].Message);
    }
}

Piattaforme

Piattaforme di sviluppo

Windows Vista, Windows Mobile 5.0, Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Mobile 2003 for Pocket PC, Windows CE 5.0
Informazioni sulla versione
.NET Framework e .NET Compact Framework
Supportato in 3.5
.NET Framework
Supportato in 3.0
.NET Compact Framework e .NET Framework
Supportato in 2.0

Vedere anche

Riferimento

SqlCeConnection Class
SqlCeConnection Members
System.Data.SqlServerCe Namespace

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