页面隐藏部分GridView1， 代码哪位大侠给解释解释

            //隐藏两个层
            function ShowNo(divName) {
               // document.getElementById("doing").style.display = "none";
                document.getElementById(divName).style.display = "none";
                 document.getElementById("MyFrm").style.visibility="hidden";
            }
            //隐藏两个层(不刷新)
            function ShowNoFlash(divName) {
                //document.getElementById("doing").style.display = "none";
                document.getElementById(divName).style.display = "none";
                document.getElementById("MyFrm").style.visibility = "hidden";
                
            }
              //隐藏两个层并刷新后台
            function ShowNoRefsh(divName) {
               // document.getElementById("doing").style.display = "none";
                document.getElementById(divName).style.display = "none";
                document.getElementById("MyFrm").style.visibility="hidden";
                var theform = document.forms["form1"];
                theform.__EVENTTARGET.value = "btnOutQuery";
                theForm.__EVENTARGUMENT.value = "";
                 theform.__EVENTTARGET.value = "btnQuery";
                theForm.__EVENTARGUMENT.value = "";
                theform.submit();
            }

            function $(id) {
                return (document.getElementById) ? document.getElementById(id) : document.all[id];
            }
            
            //隐藏两个层并刷新后台
            function ShowNoRefsh() {
               window.location.href=window.location.href;
               window.location.reload; 
            }

            //根据屏幕的大小显示两个层
            function showFloat(hCount, divName, isAdd) {
                //$('doing').style.width = "100%";
               // $('doing').style.height = "100%";
                //$('doing').style.display = "block";
                
                document.getElementById("MyFrm").style.visibility = "visible";
                var objLog = document.getElementById(divName);
                objLog.style.display = "";
              
            }
            
             function showConfir(ImgName,divName)
                {
                    if(document.getElementById(divName).style.display=="none")
                    {
                        document.getElementById(divName).style.display="";
                        document.getElementById(ImgName).src="../../Images/expand.jpg" ;
                        
                     }
                    else
                    {
                         document.getElementById(divName).style.display="none";
                         document.getElementById(ImgName).src="../../Images/collapse.jpg";
                    }        
                }

页面有两个部分隐藏，怎么改为全部显示
--------------------编程问答-------------------- --------------------编程问答-------------------- 把none改为block

补充：.NET技术 ,  C#