Hi, I have a requirement of "editable" Trees. I have set up tree views to show categories in my application. I want to allow editing of those trees but unfortunately HTML has some limitations. Can someone point me to a useful resource in this regard or suggest a nice design for this. I am using Struts-Layout treeview tag (happily :). You can see the suggested solutions below.
Thanks a lot. Regards, Affan ----- Original Message ----- > From: "Aamir Baig" <[EMAIL PROTECTED]> > To: "Toqeer Sardar" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Friday, February 21, 2003 7:58 AM > Subject: Re: Editable Trees > > > > There is another pretty neat way that I just thought of... > > Since the tree that we use currently is open-source we can modify it to > > support editable trees .. > > > > This could be done quite a number of ways... > > > > We could create Add, Del small icons that show up with each node in the > > tree...(to the left or right...watever makes more ergonomical sense), > > > > On clicking Add we could prompt up a javascript box, take input and > > submit....it would execute an action defined in struts for the tree (just > > like the sorting in the collection tags...). > > > > For delete it could prompt up javascript confirmation and do the same... > > > > Once the action is executed, we would have to support action forwarding > > setup for the tree so that it can then forward to an application action > > .....(where we can actually put it in the db...)..As a matter of fact we > > would want to forward to the application action first..in case it fails we > > don't want to update the tree...... > > > > This way we can maintain the same elegant structure that we have right > now, > > have any number of levels....I think it'll work well....we could set the > > tree up to be instantiated in editable or non-editable mode(the > > default)...and contribute it back to the open-source community that way > > their existing code would not be hurt ..and they have capability to setup > > editable ones.... > > > > Also, I am not sure if javascript supports right click pop-up > > menus..otherwise we can add add/edit/del in there.... > > > > As for the ordering, we could add up and down arrow icons too...although > > they would only allow incremental movement upwards and downwards.... > > > > To move by leaps when someone edits a category we can also give the number > > order number field that they can type the order number in, and it moves > the > > order accordingly.... > > > > That's one suggestion...what do you guys think.... > > Regards, > > Aamir > > > > ----- Original Message ----- > > From: "Toqeer Sardar" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Cc: <[EMAIL PROTECTED]> > > Sent: Friday, February 21, 2003 12:29 AM > > Subject: category management > > > > > > > > > > > > > Hi > > > The best way to handle hierarchical structures is an editable tree where > > we > > > can edit, add, delete and move the nodes up and down. But the problem is > > HTML > > > and java script limitations. I did some search but couldn't find such > > > component in HTML/JavaScript... If any one knows or have any idea please > > help > > > me. > > > I have following one solution, which is not the best: > > > Create three lists, for three levels of categories each with > > add/edit/delete > > > and UP/DOWN buttons. Selecting a row in list-1 will populate child > records > > in > > > list-2 and so on. > > > > > > One major disadvantage with this approach is that we can't handle > > dynamically > > > the category levels more than 3 (number of lists we have in UI), it also > > > increases the size of the screen in horizontal direction. > > > > > > Any better idea...? > > > > > > Regards > > > Toqeer. > > > > > > > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
