Tree state - Line 1965 'tree' is null or not an object

Suite and Optimus Suite 5
#1

When I try to save the tree state with “sample 1”, the code works fine. However, when I try to save the tree state with “sample 2” code I get the following error “Line 1965 ‘tree’ is null or not an object”.



The only difference in the two sample is that in sample 2 I name the tree object oTreeMenus instead of tree.



Question 1 - Does the tree object always have to be named “tree”?



Question 2 - If so how is it possible for me to with more than one tree on a page?



Question 3 - The way I currently am going about placing multiple tree controls on a page is to declare 2 global variables oTree1, oTree2 and then I can get a handle on those objects later when I submit the page, but if I always have to name my tree objects “tree”, what is the best way to get a handle on those items later when I want to submit the page?



This only became an issue when I tried using loadOpenStates() function. Prior to that I was always able to name my tree object whatever I wanted.



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Sample 1

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tree = new dhtmlXTreeObject(“divMenuTree”,“100%”,“100%”,0);

tree.setImagePath(“…/…/DHTMLXSuite/imgs/”);

tree.enableCheckBoxes(1);

tree.enableThreeStateCheckboxes(true);

tree.loadXML(“…/BusinessLogic/BL_DHTMLXDataProcessor.php?caller=P_RolePrivileges&action=getMenus&roleId=” + roleId, function(){tree.loadOpenStates()});

tree.attachEvent(“onOpenEnd”,function(){

tree.saveOpenStates();

});



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Sample 2

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oTreeMenus = new dhtmlXTreeObject(“divMenuTree”,“100%”,“100%”,0);

oTreeMenus.setImagePath(“…/…/DHTMLXSuite/imgs/”);

oTreeMenus.enableCheckBoxes(1);

oTreeMenus.enableThreeStateCheckboxes(true);

oTreeMenus.loadXML(“…/BusinessLogic/BL_DHTMLXDataProcessor.php?caller=P_RolePrivileges&action=getMenus&roleId=” + roleId, function(){oTreeMenus.loadOpenStates()});

oTreeMenus.attachEvent(“onOpenEnd”,function(){

oTreeMenus.saveOpenStates();

});

#2

There was a bug in original release , which cause problem with state saving, when tree object named differently.
The issue already fixed in latest build
support@dhtmlx.com we will provide a separate fix.

#3


Ok.  I downloaded and installed the newest bug fixes.  The error is no longer present.  However, when I place two trees on the same page, the folder tree states seem to be mutually exclusive now.  When I click on oTreeMenus and oTreeDocLib, it only saves the state of the last tree I click on.



example 1 - click on oTreeMenus and submit -> it will save state of oTreeMenu



example 2 - click on oTreeDocLib and submit -> it will save state of oTreeDocLib



example 3 - first click on oTreeMenus and then click on oTreeDocLib -> only oTreeDocLib state is saved



example 4 - first click o oTreeDocLib and then click on oTreeMenus -> only oTreeMenus state is saved



 



/
* @desc Initialize the dhtmlxTree for menus tab
*/
function initializeMenuTree()
{ 
    oTreeMenus = new dhtmlXTreeObject(“divMenuTree”,“100%”,“100%”,0);
    oTreeMenus.setImagePath("…/…/DHTMLXSuite/imgs/");
    oTreeMenus.enableCheckBoxes(1);
    oTreeMenus.enableThreeStateCheckboxes(true);
    oTreeMenus.enableTreeImages(false);
    oTreeMenus.loadXML("…/BusinessLogic/BL_DHTMLXDataProcessor.php?caller=P_RolePrivileges&action=getMenus&roleId=" + roleId, function(){oTreeMenus.loadOpenStates()});
    oTreeMenus.attachEvent(“onOpenEnd”,function(){
    oTreeMenus.saveOpenStates();
    });
}



/
* @desc Initialize the dhtmlxTree for document library folder tab
*/
function initializeDocumentLibraryFolderTree()
{
    oTreeDocLib = new dhtmlXTreeObject(“divDocumentLibraryFolderTree”,“100%”,“100%”,0);
    oTreeDocLib.setImagePath("…/…/DHTMLXSuite/imgs/");
    oTreeDocLib.enableCheckBoxes(1);
    oTreeDocLib.enableThreeStateCheckboxes(true);
    oTreeDocLib.loadXML("…/BusinessLogic/BL_DHTMLXDataProcessor.php?caller=P_RolePrivileges&action=getDocLibFolders&roleId=" + roleId, function(){oTreeDocLib.loadOpenStates()});
    oTreeDocLib.attachEvent(“onOpenEnd”,function(){
    oTreeDocLib.saveOpenStates();
    });
}

#4

Has this been confirmed?

#5

Both - saveOpenStates and loadOpenStates allow to provide a name of saving as parameter, if you want to save setting for different tree, you need to use those commands with different names, in other case settings will be overwritten.

#6

Thank you.  That worked.