Tree / TreeGrid - Dynamic loading - Loading indicator

Suite and Optimus Suite 5
#1

Hi,



How can we display a loading indicator while the content of a node is loading?



The following does not seem to be the right method:



myTreeGrid.setOnOpenStartHandler(function(id,m){showLoading(); return true;});

myTreeGrid.setOnOpenEndHandler(function(id,m){hideLoading()});



Actually returning true in OnOpenStartHandler will end the open method even if the node content is not loaded yet…



This question is for both components Tree and TreeGrid.



Regards,

Jean.

#2

The code, which you provide - must work for dhtmlxtree 1.6 and dhtmlxtreegrid 1.5, but it will react only on loading initiated by branch loading.
   
If you are using latest dhtmlxTreeGrid 1.6 ( it will work for tree, or older versions of grid and treegrid as well ), the the next code will work for all loading operation
    myTreeGrid.attachEvent(“onXLS”,function(id,m){ showLoading(); });

    myTreeGrid.attachEvent(“onXLE”,function(id,m){ hideLoading(); });