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  1. #1
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    Default Answered: Which drag and drop events exist for a tree view panel?

    Answered: Which drag and drop events exist for a tree view panel?


    My problem concerns dragging & dropping nodes of a tree view panel.
    I want to implement an ajax call after a user has drag and drop the node of a tree view.
    Which events fire during drag and drop or are there a functions for overriding? How they are defined?Sorry, I'm new in EXT JS.This is our Tree Panel definition:
    treePanel = Ext.create('Ext.tree.Panel', {
    renderTo: 'our-tree',
    height:600,
    columns: [{
    xtype: 'treecolumn',
    text: 'Name',
    dataIndex: 'text',
    width: 300
    },{
    text: 'Description',
    dataIndex: 'desc',
    width: 500
    }],
    listeners: {
    checkchange: function(node, checked, options) {
    if(checked) var ajaxRequest = ...
    }, ..
    viewConfig: {
    plugins: {
    ptype: 'treeviewdragdrop'
    }
    }, ...
    }

  2. You should config to listen to beforedrop and drop events on TreeView not TreePanel.
    Code:
    var treePanel = Ext.create('Ext.tree.Panel', {
        renderTo: 'our-tree',
        height:600,
        columns: [{
            xtype: 'treecolumn',
            text: 'Name',
            dataIndex: 'text',
            width: 300
        },{
            text: 'Description',
            dataIndex: 'desc',
            width: 500
        }],
    //  listeners: {
    //      beforedrop: function(node, data, overModel, dropPosition, dropFunction, eOpts ) {
    //          var ajaxRequest= new htmldb_Get(..); ..
    //      }
    //  },
        viewConfig: {
            plugins: {
                ptype: 'treeviewdragdrop'
            },
            listeners: {
                beforedrop: function(node, data, overModel, dropPosition, dropFunction, eOpts ) {
                    console.log('beforedrop')
                }
            }
        }
    });

  3. #2
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    Default


    TreeViewDragDrop fires two events through the TreeView. They are beforedrop and drop. You can refer to these here: http://docs.sencha.com/ext-js/4-0/#!...ent-beforedrop and http://docs.sencha.com/ext-js/4-0/#!...rop-event-drop

  4. #3
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    Default The program does not jump in my BeforeDrop event handler.

    The program does not jump in my BeforeDrop event handler.


    Thanks for your answers. However, the program does not jump in my BeforeDrop event handler. What is wrong?
    This is our Tree Panel definition:
    treePanel = Ext.create('Ext.tree.Panel', {
    renderTo: 'our-tree',
    height:600,
    columns: [{
    xtype: 'treecolumn',
    text: 'Name',
    dataIndex: 'text',
    width: 300
    },{
    text: 'Description',
    dataIndex: 'desc',
    width: 500
    }],
    listeners: {
    beforedrop: function(node, data, overModel, dropPosition, dropFunction, eOpts ) {
    var ajaxRequest= new htmldb_Get(..); ..
    }
    viewConfig: {
    plugins: {
    ptype: 'treeviewdragdrop'
    }
    },
    }

  5. #4
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    Default


    You should config to listen to beforedrop and drop events on TreeView not TreePanel.
    Code:
    var treePanel = Ext.create('Ext.tree.Panel', {
        renderTo: 'our-tree',
        height:600,
        columns: [{
            xtype: 'treecolumn',
            text: 'Name',
            dataIndex: 'text',
            width: 300
        },{
            text: 'Description',
            dataIndex: 'desc',
            width: 500
        }],
    //  listeners: {
    //      beforedrop: function(node, data, overModel, dropPosition, dropFunction, eOpts ) {
    //          var ajaxRequest= new htmldb_Get(..); ..
    //      }
    //  },
        viewConfig: {
            plugins: {
                ptype: 'treeviewdragdrop'
            },
            listeners: {
                beforedrop: function(node, data, overModel, dropPosition, dropFunction, eOpts ) {
                    console.log('beforedrop')
                }
            }
        }
    });

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