TemplateControl.AbortTransaction Kejadian
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Terjadi ketika pengguna mengakhiri transaksi.
public:
event EventHandler ^ AbortTransaction;
public event EventHandler AbortTransaction;
member this.AbortTransaction : EventHandler
Public Custom Event AbortTransaction As EventHandler
Jenis Acara
Contoh
Contoh kode berikut menunjukkan cara mendaftarkan penanganan aktivitas kustom untuk peristiwa tersebut AbortTransaction . Karena TemplateControl adalah kelas abstrak, contoh kode ini menggunakan Page kelas , yang berasal dari TemplateControl kelas .
Account
adalah kelas yang mendukung Debit
operasi, yang transaksional dan harus dijalankan sebagai unit. Jika ada pengecualian yang dimunculkan selama operasi ini, transaksi berakhir.
private void Page_Load(object sender, System.EventArgs e)
{
AbortTransaction += new System.EventHandler(Sub_AbortTransaction);
CommitTransaction += new System.EventHandler(Sub_CommitTransaction);
try
{
Account myAccount = new Account();
int someAmount = 500;
myAccount.Debit(someAmount);
ContextUtil.SetComplete();
}
catch(Exception)
{
ContextUtil.SetAbort();
}
}
private void Sub_AbortTransaction(object sender,System.EventArgs e)
{
// Code for RollBack activity goes here.
Response.Write("Transaction Aborted");
}
private void Sub_CommitTransaction(object sender,System.EventArgs e)
{
// Code for Commit Activity goes here.
Response.Write("Transaction Commited");
}
private Sub Page_Load(Sender As Object, e As EventArgs)
AddHandler Me.myCommitTransaction,AddressOf Sub_CommitTransaction
AddHandler Me.myAbortTransaction,AddressOf Sub_AbortTransaction
try
Dim myAccount As Account = New Account()
Dim someAmount As Integer = 500
myAccount.Debit(someAmount)
ContextUtil.SetComplete()
catch e1 As Exception
ContextUtil.SetAbort()
End Try
End Sub
Public event myCommitTransaction As System.EventHandler
Public event myAbortTransaction As System.EventHandler
protected overrides Sub OnCommitTransaction(e As EventArgs )
RaiseEvent myCommitTransaction(Me ,e)
Response.Write("<br /><br />The 'OnCommitTransaction()' method is used to raise the 'CommitTransaction' event." )
End Sub
protected overrides Sub OnAbortTransaction(e As EventArgs)
RaiseEvent myAbortTransaction(Me ,e)
Response.Write("<br /><br />The 'OnAbortTransaction()' method is used to raise the 'AbortTransaction' event." )
End Sub
private Sub Sub_AbortTransaction(Sender As Object, e As EventArgs)
' Code for RollBack activity goes here.
Response.Write("Transaction Aborted")
End Sub
private Sub Sub_CommitTransaction(Sender As Object, e As EventArgs)
' Code for Commit Activity goes here.
Response.Write("Transaction Commited")
End Sub