在iis中 将.net版本设置到 2.0

解决方案 »

  1.   

    双击DropDownList1编写DropDownList1的SelectIndexChange事件啊
      

  2.   

    把这段代码放进DropDownList1的SelectIndexChange事件里面
    if   (ddlType.SelectedValue   ==   "法律"   ¦ ¦ 
                            ddlType.SelectedValue   ==   "行政法规") 
                    { 
                            ddlSubType.Visible   =   false; 
                    } 
                    else 
                    { 
                            ddlSubType.Visible   =   true; 
                    } 
      

  3.   

    把段代码放进DropDownList1的SelectIndexChange事件里面