TemplateControl.AbortTransaction 事件
定义
当用户结束交易时发生。Occurs when a user ends a transaction.
public:
event EventHandler ^ AbortTransaction;
public event EventHandler AbortTransaction;
member this.AbortTransaction : EventHandler
Public Custom Event AbortTransaction As EventHandler
事件类型
示例
下面的代码示例演示如何为事件注册自定义事件处理程序 AbortTransaction 。The following code example demonstrates how to register a custom event handler for the AbortTransaction event. 由于 TemplateControl 是抽象类,因此此代码示例使用 Page 类,该类派生自 TemplateControl 类。Because TemplateControl is an abstract class, this code example uses the Page class, which is derived from the TemplateControl class. Account 是支持操作的类 Debit ,该操作是事务性的,必须作为一个单元执行。Account is a class that supports a Debit operation, which is transactional and must execute as a unit. 如果在此操作过程中引发任何异常,则事务将结束。If any exception is raised during this operation, the transaction is ended.
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