.net用户控件和页面的加载事件顺序

在WebForm1页面上直接放置用户控件WebUserControl1时的事件顺序：

WebUserControl1_Init <br>

WebForm1_Init <br>

Page_Load <br>

WebUserControl1_Load <br>

WebForm1_PreRender <br>

WebUserControl1_PreRender <br>

WebUserControl1_Unload <br>

WebForm1_Unload <br>

在WebForm1页面的OnInit方法中用代码Load用户控件WebUserControl1时的事件顺序：

WebForm1_Init : OnInit

WebForm1: Loading controls

WebUserControl1_Init : OnInit

WebForm1: added to Controls

WebForm1: LoadViewState

WebUserControl1: LoadViewState

WebUserControl1: LoadPostData Begin

WebUserControl1: LoadPostData End

WebForm1_PageLoad: OnLoad after base's Onload.

WebUserControl1_Load: after base's OnLoad

iWebUserControl1: RaisePostDataChange

WebForm1: OnPreRender

WebUserControl1: OnPreRender

WebForm1: SavedViewState

WebUserControl1: SaveViewState

在WebForm1页面的Page_Load方法中用代码Load用户控件WebUserControl1时的事件顺序：

WebForm1_Init : OnInit

WebForm1: LoadViewState

WebForm1_PageLoad: OnLoad after base's Onload.

WebForm1: Loading controls

WebUserControl1_Init : OnInit

WebUserControl1: LoadViewState

WebForm1: added to Controls

WebUserControl1_Load: after base's OnLoad

WebUserControl1: LoadPostData Begin

WebUserControl1: LoadPostData End

iWebUserControl1: RaisePostDataChange

WebForm1: OnPreRender

WebUserControl1: OnPreRender

WebForm1: SavedViewState

WebUserControl1: SaveViewState

在WebForm1页面的Button1_Click事件中用代码Load用户控件WebUserControl1时的事件顺序：

WebForm1_Init <br>

Page_Load <br>

Button1_Click <br>

WebUserControl1_Init <br>

WebUserControl1_Load <br>

WebForm1_PreRender <br>

WebUserControl1_PreRender <br>

WebUserControl1_Unload <br>

WebForm1_Unload <br>

在WebForm1页面的Page_Load事件中用代码Load用户控件WebUserControl1，WebUserControl1又在Page_Load事件中用代码Load用户控件WebUserControl2时的事件顺序：

WebForm1_Init <br>

Page_Load <br>

WebUserControl1_Init <br>

WebUserControl1_Load <br>

WebUserControl2_Init <br>

WebUserControl2_Load <br>

WebForm1_PreRender <br>

WebUserControl1_PreRender <br>

WebUserControl2_PreRender <br>

WebUserControl2_Unload <br>

WebUserControl1_Unload <br>

WebForm1_Unload <br>