Keep track of parent node

[rmlakshmanan@gmail.com]

In javascript a tree structure node i have a subnode and it has
parentnode and that parentnode has one parent how do i get all parent
node when i click the subnode

[impaler]

Re: Keep track of parent node


rmlakshmanan@gm ail.com wrote:[color=blue]
> In javascript a tree structure node i have a subnode and it has
> parentnode and that parentnode has one parent how do i get all parent
> node when i click the subnode[/color]

var arrayParents = new Array;
if (child.parent) {
var currentParent = child.parent;
arrayParents.pu sh(currentParen t);
while(currentPa rent.parent) {
currentParent = currentParent.p arent;
arrayParents.pu sh(currentParen t);
}
}

and there you have the array of parents. Adapt this algorithm to your
tree and code

[rmlakshmanan@gmail.com]

Re: Keep track of parent node

Thanks a lot

[RobG]

Re: Keep track of parent node

impaler wrote:[color=blue]
> rmlakshmanan@gm ail.com wrote:
>[color=green]
>>In javascript a tree structure node i have a subnode and it has
>>parentnode and that parentnode has one parent how do i get all parent
>>node when i click the subnode[/color]
>
>
> var arrayParents = new Array;
> if (child.parent) {
> var currentParent = child.parent;
> arrayParents.pu sh(currentParen t);
> while(currentPa rent.parent) {
> currentParent = currentParent.p arent;
> arrayParents.pu sh(currentParen t);
> }
> }[/color]

More concisely:

function getParentArray( el)
{
var parent, parentArray = [];
while((el = el.parentNode)) {
parentArray.pus h(el);
}
return parentArray;
}




--
Rob

[RobG]

Re: Keep track of parent node

RobG wrote:
[...][color=blue]
>
> function getParentArray( el)
> {
> var parent, parentArray = [];[/color]

Aggh...

var parentArray = [];

[color=blue]
> while((el = el.parentNode)) {
> parentArray.pus h(el);
> }
> return parentArray;
> }[/color]


--
Rob

[Thomas 'PointedEars' Lahn]

Re: Keep track of parent node

RobG wrote:
[color=blue]
> RobG wrote:
> [...][color=green]
>> function getParentArray( el)
>> {
>> var parent, parentArray = [];[/color]
>
> Aggh...
>
> var parentArray = [];[/color]

That is equivalent :)


Regards,
PointedEars