学步园

public static void ClearAllContent( )
/// <summary>
/// 清空指定页面上所有的控件内容,包括TextBox,CheckBox,CheckBoxList,RadioButton,RadioButtonList.但是不清
/// 除如ListBox,DropDownList,因为这样的控件值对当前页面来说还可以用,一般这些控件里都是保存的字典数据.
/// </summary>
/// <param name="page"> 指定的页面</param>
public static void ClearAllContent( System.Web.UI.Control page )
{
    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( ) )
            {
                ClearAllText( control );
            }
            else
            {
                if ( control is TextBox ) ( control as TextBox ).Text = "";
               
                if ( control is CheckBox ) ( control as CheckBox ).Checked = false;
               
                if ( control is RadioButtonList ) ( control as RadioButtonList ).SelectedIndex = -1;
               
                if ( control is RadioButton ) ( control as RadioButton ).Checked = false;
               
                if ( control is CheckBoxList )
                {
                    foreach ( ListItem item in ( control as CheckBoxList ).Items )
                    {
                        item.Selected = false;
                    }
                }
            }
           
        }
       
    }
   
}