好吧，我是pretty的困惑动态创建的控件的ID。

Okay, I'm pretty confused about the IDs of dynamically created controls.

Public Class TestClass
    Inherits Panel
    Implements INamingContainer

    Function TestClassInit() Handles Me.Init

        Dim pnlMainPanel As New Panel
        Me.Controls.Add(pnlMainPanel)

        Dim pnlTest1 As New Panel
        pnlMainPanel.Controls.Add(pnlTest1)

        pnlTest1.ClientIDMode = UI.ClientIDMode.Inherit ' DEFAULT
        'pnlTest1.ID = "ctl01"
        'pnlTest1.UniqueID = "ctl00$MainPanel$ctl01"
        'pnlTest1.ClientID = "MainPanel_ctl01"
        'pnlTest1.UniqueClientID = "ctl00_MainPanel_ctl01"
        'pnlTest1.StaticClientID = ""

        pnlTest1.ClientIDMode = UI.ClientIDMode.Predictable
        'pnlTest1.ClientID = "MainPanel_ctl01" (no change)

        pnlTest1.ClientIDMode = UI.ClientIDMode.AutoID
        'pnlTest1.ClientID = "ctl00_MainPanel_ctl01"

        pnlTest1.ClientIDMode = UI.ClientIDMode.Static
        'pnlTest1.ClientID = ""

    End Function
End Class

为什么5个不同的ID ??

Why the 5 different IDs??

当你应该使用不同的ID模式？

When should you use the different ID modes?

（我看过MSDN文档，但他们像往常一样，没有特别的启发。）

(I read the MSDN docs, but they were, as usual, not particularly illuminating.)

如果我不在乎的什么的ID是，只是想添加一个控制及;到动态添加AJAX扩展，模式/ ID组合，我应该用这给它的ID？

If I don't care what the ID is, and just want to add a control & give its ID to a dynamically added AJAX extender, which mode/ID combo should I use?

推荐答案

ASP.Net 4增加的ClientIDMode它允许你强制id属性相匹配的服务器端ID（因此更predictable），如果你将其设置为静态。

ASP.Net 4 adds clientIdMode which allows you to force the id attribute to match the serverside id (and thus be more predictable) if you set it to "static".