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Yes , only i am not using a grid ,i am using a dhtmlxTREE


Yes , only i am not using a grid ,i am using a  dhtmlxTREE 
how do i make just some items editable?  for a tree
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how do i make just some items editable?

for example just the ones that have the id like this id="attrib131", id="attrib44" etc?You can use onEditCell event

mygrid.attachEvent("onEditCell",function(stage,id,ind){
    if (id=="attrib131" || id=="attrib44") return true;
    return false;
});


Also grid allows to lock rows ( it can be done directly from XML ) , locked rows can't be edited

>>how do i make just some items editable?  for a tree

You can use the same approach

mytree.attachEvent("onEdit",function(stage,id){
    if (id=="attrib131" || id=="attrib44") return true;
    return false;
});