asked on

How to disable the cache in Internet Explorer 7?

Hi

We are using a dinamic YUI tree view for reflect a folder structure.
We are trying to delete nodes from the tree, but when the browser executes the following code:

oTreeView.removeNode(oCurrentTextNode);
oTreeView.draw();

the node is not removed from the tree. Seems to be a client side cache problem on IE 7 (Firefox works fine).

We are trying to use cache control on our asp and html codes:

Into the ASP
<%

Response.CacheControl = "no-cache, must-revalidate";
Response.AddHeader("Pragma", "no-cache");
Response.Expires = -1;
%>

into the HTML page
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">

but the issue persists

Below you will find the complete function that we are using for remove the node:

function DeleteNode(oTreeView , idNode) {

                  var callbackDelete = {
                              success : function(o) {
                                    //content.innerHTML = o.responseText;
                                    eval(o.responseText);

                                    if(isSuccessfulBL) {

                                          if(previusNode.labelElId == oCurrentTextNode.labelElId) {
                                                previusNode = null;
                                          }
                                          delete oTextNodeMap[oCurrentTextNode.labelElId];
                                          oTreeView.removeNode(oCurrentTextNode);
                                          oTreeView.draw();

                                          window.location = 'repository.asp';

                                    } else {
                                          getScreenResponse().innerHTML = messageBL;
                                          getScreenResponse().style.visibility = "visible";
                                    }
                                    //getScreenResponse().innerHTML = o.responseText;
                                    //getScreenResponse().style.visibility = "visible";
                                    //delete oTextNodeMap[oCurrentTextNode.labelElId];
                                    //oTreeView.removeNode(oCurrentTextNode);
                                    //oTreeView.draw();

                              },
                              failure : function(o) {
                                    //content.innerHTML = o.responseText;
                                    getScreenResponse().innerHTML = o.responseText;
                                    getScreenResponse().visibility = "visible";
                                    getScreenResponse().innerHTML = "CONNECTION FAILED! " + o.responseText;
                              }
                  } // End CallBackDelete

                  // Connect to our data source and load the data
                  var url = "../../BussinessLayer/folder_BL.asp?" +
                               "<%=PARAM_ACTION%>" + "=" + "<%=DELETE_FOLDER%>" + "&" +
                               "<%=PARAM_FOLDER_ID%>" + "=" + idFolder + "&" +
                               "<%=USER_ID%>" + "=" + <%= userId %> + "&" +
                               "<%=PARAM_BOOL_DELETE%>" + "=" + "true";

                  var conn = YAHOO.util.Connect.asyncRequest("GET", url, callbackDelete);
            } // END DeleteNode()\

How to disable the cache in Internet Explorer 7?

Thanks

dosth

what you have is right, can you clear cache manulally one time and see it is caching?

zoropoteame

ASKER

I delete a folder in the page, I went to other page and back again and IE no refresh it,
then, I repeated the same process but clearing cache manulally and i can see the change.
definitely is a client side cache issue

ASKER CERTIFIED SOLUTION

webfullcircle

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

the_cyman

I think you need to do:
oTreeView.removeNode(oCurrentTextNode);
oTreeView.render();
oTreeView.draw();

You forgot to render before the draw.