ExtJS5学习之Grid与Grid之间的数据拖拽

      拖拽是一个提升用户体验的一个特色功能，虽然不是必需的，但如果添加上此功能，必然就立马变得高大上了，有木有。Grid与Grid之间的数据拖拽是由gridviewdragdrop插件，官方源码已经内置了该插件，无须自己实现，进行一些简单配置就完事儿了。下面是示例代码：

    

Ext.require([
    'Ext.grid.*',
    'Ext.data.*',
    'Ext.dd.*'
]);

Ext.define('DataObject', {
    extend: 'Ext.data.Model',
    fields: ['name', 'column1', 'column2']
});

Ext.onReady(function(){

    var myData = [
        { name : "Rec 0", column1 : "0", column2 : "0" },
        { name : "Rec 1", column1 : "1", column2 : "1" },
        { name : "Rec 2", column1 : "2", column2 : "2" },
        { name : "Rec 3", column1 : "3", column2 : "3" },
        { name : "Rec 4", column1 : "4", column2 : "4" },
        { name : "Rec 5", column1 : "5", column2 : "5" },
        { name : "Rec 6", column1 : "6", column2 : "6" },
        { name : "Rec 7", column1 : "7", column2 : "7" },
        { name : "Rec 8", column1 : "8", column2 : "8" },
        { name : "Rec 9", column1 : "9", column2 : "9" }
    ];

    // create the data store
    var firstGridStore = Ext.create('Ext.data.Store', {
        model: 'DataObject',
        data: myData
    });


    // Column Model shortcut array
    var columns = [
        {text: "Record Name", flex: 1, sortable: true, dataIndex: 'name'},
        {text: "column1", width: 70, sortable: true, dataIndex: 'column1'},
        {text: "column2", width: 70, sortable: true, dataIndex: 'column2'}
    ];

    // declare the source Grid
    var firstGrid = Ext.create('Ext.grid.Panel', {
        viewConfig: {
            plugins: {
                ptype: 'gridviewdragdrop',
                dragGroup: 'firstGridDDGroup',
                dropGroup: 'secondGridDDGroup'
            },
            listeners: {
                drop: function(node, data, dropRec, dropPosition) {
                    var dropOn = dropRec ? ' ' + dropPosition + ' ' + dropRec.get('name') : ' on empty view';
                    Ext.example.msg("Drag from right to left", 'Dropped ' + data.records[0].get('name') + dropOn);
                }
            }
        },
        store            : firstGridStore,
        columns          : columns,
        stripeRows       : true,
        title            : 'Grid-1',
        margins          : '0 2 0 0'
    });

    var secondGridStore = Ext.create('Ext.data.Store', {
        model: 'DataObject'
    });

    var secondGrid = Ext.create('Ext.grid.Panel', {
        viewConfig: {
            plugins: {
                ptype: 'gridviewdragdrop',
                dragGroup: 'secondGridDDGroup',
                dropGroup: 'firstGridDDGroup'
            },
            listeners: {
                drop: function(node, data, dropRec, dropPosition) {
                    var dropOn = dropRec ? ' ' + dropPosition + ' ' + dropRec.get('name') : ' on empty view';
                    Ext.example.msg("Drag from left to right", 'Dropped ' + data.records[0].get('name') + dropOn);
                }
            }
        },
        store            : secondGridStore,
        columns          : columns,
        stripeRows       : true,
        title            : 'Grid-2',
        margins          : '0 0 0 3'
    });

    var displayPanel = Ext.create('Ext.Panel', {
        width        : 650,
        height       : 300,
        layout       : {
            type: 'hbox',
            align: 'stretch',
            padding: 5
        },
        renderTo     : 'panel',
        defaults     : { flex : 1 },
        items        : [
            firstGrid,
            secondGrid
        ],
        dockedItems: {
            xtype: 'toolbar',
            dock: 'bottom',
            items: ['->',
                {
                    text: '重置两个Grid',
                    handler: function(){
                        firstGridStore.loadData(myData);
                        secondGridStore.removeAll();
                    }
                }]
        }
    });
});

示例截图：


 接下来打算研究下treePanel的节点拖拽。

代码请在附件里下载。如有疑问，请加裙咨询