What is utility class ?

Question

I am surfing a lot but i didn't find any single article, afterso long i came to know that it is a class which have some common functionality. Can anyone explain it in a brief and how do i add in a  web api.

 

For any answer would really appreciate....!!!

Answer 1

Hi Hemant,

CoolJSTree is bit different. To get the file element from javascript, the tree should expand atleast once.. The span / anchor tags are rendered only on expand option. So I made expand all on tree load. Whenever you try to search some file, the tree will collapse and expand only the result tree hierarchy. Here is my code.. I have tried "PIP", it works fine..  Please let me know if you need any clarifications.

 

 

<script>

alert('started in index.jsp');

var tree1 = new COOLjsTree("tree1", TREE_NODES, TREE_FORMAT);

tree1.expandAll();

alert('ended in index.jsp');

$(function() {

$('#submit').on('click', function() {

tree1.collapseAll();

var results = $("a.treeNode[href^='download_documents.jsp']:contains('" + $('#search').val() + "')");

if (results.length == 0) {

alert("file not found!");

return false;

}

var targetElement = $(results[0]);

var targetAnchor = targetElement.is("span") ? $(targetElement.parent()[0]) : targetElement;

var targetUrl = targetAnchor.attr('href').replace(targetAnchor[0].protocol + '//' + targetAnchor[0].host, "");

var targetNodeIndex = tree1.nodeByURL(targetUrl).index;

var node = tree1.nodeByIndex(targetNodeIndex);

var expandList = [];

while (node.parentNode != null && node.parentNode.index > -1) {

if (!node.parentNode.expanded) expandList.push(node.parentNode.index);

node = node.parentNode;

}

expandList.reverse();

$.each(expandList, function(index, v) {

tree1.expandNode(v, true, true);

});

tree1.draw();

return false;

});

});

</script> 

Answer 2

hii harish

i have attached my source code please go through. set start page as newtree.aspx and see .

 

Answer 3

Can you share the code which you wrote for treeview display. so that we can try for search functionality...