如何在动态按钮上创建动态按钮点击事件 - VB.net

Question

我正在页面上动态创建一个按钮。现在我想使用该按钮上的按钮单击事件。我怎样才能做到这一点在VB.net & asp.net？

我的代码：

页面加载：

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load 
      Try 
       LoadControls() 
      Catch ex As Exception 

      End Try 
     End Sub 

负载控制

Private Sub LoadControls() 
    Try 
     Dim ButtonTable As New HtmlTable 
     Dim ButtonTableRow As New HtmlTableRow 
     Dim ButtonTableCell As New HtmlTableCell 
     Dim btnCode As New Button 
      btnCode.ID = "btnCode" 
      btnCode.Text = "btnCode" 
      AddHandler btnCode.Click, AddressOf btnCode_Click 
     ButtonTableCell.Controls.Add(btnCode) 

     ButtonTableRow.Cells.Add(ButtonTableCell) 
     ButtonTable.Rows.Add(ButtonTableRow) 

     ControlsPlaceHolder.Controls.Add(ButtonTable) 
Catch ex As Exception 

     End Try 
    End Sub 

事件处理程序

Private Sub btnCode_Click(sender As Object, e As EventArgs) 

      Dim buttonId As New Button 
      Try 
       buttonId = DirectCast(sender, Button) 

       // My execution 
      Catch ex As Exception 

      End Try 
     End Sub 

问题：

事件处理程序不会出现.. !!它抛出一个错误

Multiple controls with the same ID were found

什么不对这个代码.. !!

Answer 1

创建动态按钮后“订阅”的事件处理程序btnCode_Click到按钮的事件：

AddHandler btnCode.Click, AddressOf btnCode_Click 

然后EventHandler必须至少Protected，但你是Private - 它不能被访问，然后