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[ASP.NET]后台枚举空间

在后台用C#枚举控件不像javascript那么简单,HasControls只能抓到直属下级的控件,如果有多个div,table嵌套,就要递归了
 public static void CloseAllContent(System.Web.UI.Control page,bool bOpen)
    {
        int nPageControls = page.Controls.Count;
        for (int i = 0; i < nPageControls; i++)
        {
             foreach (System.Web.UI.Control control in page.Controls[i].Controls)
             {
                if (control.HasControls())
                {
                     CloseAllContent(control,bOpen);
                }
                 else
                {
                    if (control is TextBox)
                    {
                       // (control as TextBox).Text = "";
                        (control as TextBox).Enabled = bOpen;
             &nb


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