Click事件不能在VB.Net ASP.Net動態創建的按鈕被解僱

Question

我創造Page_PreRender功能的代碼，以動態創建一些標籤和按鈕：

Dim btnExcludeDr As New Button() 
btnExcludeDr.ID = "btnExcludeDr" 
btnExcludeDr.Text = "Rate Driver" 
form1.Controls.Add(btnExcludeDr) 
AddHandler btnExcludeDr.Click, AddressOf Me.cmdExcludeDrv_Click 

而且必須觸發事件每個btnExcludeDr按鈕：

Protected Sub cmdExcludeDrv_Click(ByVal sender As Object, ByVal e As System.EventArgs) 
    MsgBox("hello") 
End Sub 

但該事件不會觸發。你有任何解決方案？謝謝 ！

Answer 1

創建動態控件的最佳位置在頁面代碼隱藏類提供的Page_Init函數中。

Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit 
    Dim btnExcludeDr As New Button() 
    btnExcludeDr.ID = "btnExcludeDr" 
    btnExcludeDr.Text = "Rate Driver" 
    form1.Controls.Add(btnExcludeDr) 
    AddHandler btnExcludeDr.Click, AddressOf Me.cmdExcludeDrv_Click 
End Sub 


Protected Sub cmdExcludeDrv_Click(ByVal sender As Object, ByVal e As System.EventArgs) 
    MsgBox("hello") 
End Sub