1. #1
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    Exclamation DnD between treepanels

    DnD between treepanels


    I've been working with ExtJS for a while now and I am currently stuck on a problem, so here's my problem...

    - I have a tree panel let's call it MainTree
    - I have an explore function that when a user right-clicks a node from MainTree, it displays all the child nodes of that node in a separate tree and window, let's call this tree..Tree2. You can display numerous trees in a separate window from exploring the nodes from MainTree, so you can have Tree3, Tree4, Tree5, and so on..
    - Now from the windows and trees that are created in this explore function, I need to be able to drag nodes from Tree2 to the MainTree or vice versa, Tree2 to Tree3 and vice versa..and so on. Basically, I need to be able to drag nodes from wherever tree I want.

    Currently, I was able to drag & drop nodes from Tree2 to the MainTree, it only works during the first drop, but on the second time, the Tree2 events doesn't trigger anymore...and I wonder why that happens...why actually does it only work for the first DnD?

    Hope you could help.

  2. #2
    jay@moduscreate.com's Avatar
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    Default


    I'm going to post this quick and dirty example on my blog soon:
    Code:
    Ext.BLANK_IMAGE_URL='/ext2/resources/images/default/s.gif'
    Ext.onReady(function() {
        var childItems = [{
            text     :  'woot',
            children : [
                {
                    text      : 'woot1',
                    allowDrag : true,
                    allowDrop : false,
                    leaf      : true
                },
                {
                    text      : 'woot2',
                    allowDrag : true,
                    allowDrop : false,
                    leaf      : true
                }
            ]
        },
        {
            text     :  'foo',
            children : [
                {
                    text      : 'bar1',
                    allowDrag : true,
                    allowDrop : false,
                    leaf      : true
                },
                {
                    text      : 'bar2',
                    allowDrag : true,
                    allowDrop : false,
                    leaf      : true
                }
            ]
        }];
    
       
        var srcTree = new Ext.tree.TreePanel({
            title       : 'source tree',
            columnWidth : .5,
            height      : 200,
            enableDD    : true,
            ddConfig    : {
                allowDrop : false
            },
            root     : new Ext.tree.AsyncTreeNode({
                text      : 'Tree root',
                children  : childItems,
                expanded  : true,
                allowDrag : false
       
            })
        });
       
        var destTree = new Ext.tree.TreePanel({
            title       : 'dest tree',
            columnWidth : .5,
            height      : 200,
            enableDD    : true,
            ddConfig    : {
                allowDrop : false
            },
            root     : new Ext.tree.AsyncTreeNode({
                text      : 'Tree root',
                allowDrag : false,
                children  : [],
                expanded  : true
            })
        });
    
    
       new Ext.Panel({
            renderTo : Ext.getBody(),
            layout   : 'column',
            height   : 200,
            width    : 400,
            items    : [
                srcTree,
                destTree    
            ]
        });
    });

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