遍历页面的控件

foreach(Control ctl in this.Page.Controls[1].Controls)
{

if(ctl.GetType() == typeof(TextBox))
{
TextBox t = (TextBox) ctl;
t.Text = string.Empty;

}

}


递归便利子容器控件的控件
例如:
private void SetTextEmpty(Control c)
{
  foreach(Control childControl in c.Controls)
  {
     if(childControl is TextBox)
       ((TextBox)c).Text="";
     else
       SetTextEmpty(childControl);
  }
}

然后就直接SetTextEmpty(Page);就好了