Introduction
This is a tree control menu in JavaScript. Usage is simple and
convenient.
Explanation
I will introduce this tree control embodying to JavaScript. This menu will be
more accurate than other such controls. First point that this control differs
with other controls is that this is embodied by multiplex distribution. It is
actually possible, though some people think that multiplex arrangement is
impossible with JavaScript.
Item[iLength] = new Array();
Item[iLength][0] = parentItem;
Item[iLength][1] = description;
Item[iLength][2] = hreference;
Item[iLength][3] = target;
Item[iLength][4] = iDepth;
Item[iLength][5] = true;
I enabled multiplex arrangement by assigning distribution (that is new again)
on the 0th arrangement article. In this way, that we have an embodied
arrangement of multidimensional items.
And I will explain about the code that changes the tree node image. First,
see code.
DocWrite("<img id=wsTreeNodeImg_" + i +
" src='" + ImgDir + TempNodeImg + "' border='0'>");
...
Doc.getElementById(ItemName + iItem).src = ImgName;
Doc[ItemName + iItem].src = ImgName;
Method that checks for browser:-
if (document.all) {
Doc = document.all;
browserVersion = 1;
}else if (document.layers) {
Doc = document.layers;
browserVersion = 2;
}else if(document.getElementById) {
Doc = document;
browserVersion = 3;
}else {
Doc = document.all;
browserVersion = 0;
}
First, I create wsTreeCtrl
's instance. And I call initialization
function (initializeDocument
).
m_wsTreeCtrl = new wsTreeCtrl();
m_wsTreeCtrl.initializeDocument();
Now, I put items to add in the tree through InsItem
function.
The first parameter is the parent item (in some cases, it is child item.), the
second parameter establishes the text to be seen, and the third is the hyper
link, and I establish target of hyper link finally. The following is the code
that establishes tree of contents such as an upside image.
iItem = m_wsTreeCtrl.InsItem(null, "Profile", "", "_blank");
m_wsTreeCtrl.InsItem(iItem,
"whitespray", "http://whitespray.com/">http:
iItem = m_wsTreeCtrl.InsItem(null, "Homepage", "", "_blank");
m_wsTreeCtrl.InsItem(iItem, "jongha.pe.kr",
"http://jongha.pe.kr/">http:
m_wsTreeCtrl.InsItem(iItem, "whitespray.com",
"http://whitespray.com/">http:
m_wsTreeCtrl.InsItem(iItem, "hizine.net",
"http://hizine.net/">http:
iItem = m_wsTreeCtrl.InsItem(null, "Email",
"mailto:ahn@jongha.pe.kr">mailto:ahn@jongha.pe.kr", "_blank");
m_wsTreeCtrl.GenerateCode();
m_wsTreeCtrl.RecudeAllTree();
function Recude() {
m_wsTreeCtrl.RecudeAllTree();
}
function Expand() {
m_wsTreeCtrl.ExpandAllTree();
}