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Issue with tree

Hi
Iam using dhtmltree in my code.I want the functionality of expanding all the nodes once after clicked a button.
After clicking the button i called a function which is internally called the tree function
tree.openAllItems(0);
After expanding, the page become very slow and almost in the state of unresopnsive mode.
I used smartXml parsing also.
what shall i do for making the page responsive
please provide me solution

thanks
aalekhya

Hello,
Using SmartXMLParsing allows to decrease rendering time. As in this case tree is parsed by portions.
But when all items open, the whole tree must be parsed - in this case, smart parsing can't help.
And unfortunately there is no opportunity to make opening all items faster.
If you tree is not big, please provide the complete sample to support@dhtmlx.com - possibly we will be able to help you.