• Ext 实现grid之间的拖放（D&D between 2 grids） 【转】

    Ext 提供了丰富的界面效果，其一便是拖动。我试着实现两个grid间的拖动。效果不错。

    原理很简单，就是两个gird都设置支持拖拽的属性： enableDragDrop: true,   dropConfig: { appendOnly:true },  ddGroup: "GridDD2"

    然后 new Ext.dd.DropTarget ，在其notifyDrop里面写拖动的处理函数。

    话不多说，上代码！

    HTML:

    <html>
    <head>
    <title>dd 2 grids</title>

                <link rel="stylesheet" type="text/css" href="ext-2.0.2/resources/css/ext-all.css" /> 
                <script type="text/javascript" src="ext-2.0.2/adapter/ext/ext-base.js"></script> 
                <script type="text/javascript" src="ext-2.0.2/ext-all-debug.js"></script>
                <script type="text/javascript" src="mydd2grids.js"></script>
    </head>
    <body>
    <div id="grid1-example"></div>
    <div id="grid2-example"></div>
    </body>
    </html>

    JAVASCRIPT(mydd2grids.js):

    /*
     *  by Patrickchen 2008
         */

    Ext.onReady(    function(){

        Ext.state.Manager.setProvider(    new Ext.state.CookieProvider());

            var myData = [
            [    '3m Co',71.72,0.02,0.03,'9/1 12:00am'],
            [    'Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],
            [    'Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],
            [    'American Express Company',52.55,0.01,0.02,'9/1 12:00am'],
            [    'American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],
            [    'AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],
            [    'Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],
            [    'Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],
            [    'Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],
            [    'E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],
            [    'Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],
            [    'General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],
            [    'General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],
            [    'Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],
            [    'Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],
            [    'Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],
            [    'International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],
            [    'Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am']
        ];

            // example of custom renderer function
        function change(val){
                if(val > 0){
                    return '<span style="color:green;">' + val + '</span>';
            }    else if(val < 0){
                    return '<span style="color:red;">' + val + '</span>';
            }
                return val;
        }

            // example of custom renderer function
        function pctChange(val){
                if(val > 0){
                    return '<span style="color:green;">' + val + '%</span>';
            }    else if(val < 0){
                    return '<span style="color:red;">' + val + '%</span>';
            }
                return val;
        }

            // create the data store
        var store = new Ext.data.SimpleStore({
            fields: [
               {name:     'company'},
               {name:     'price', type: 'float'},
               {name:     'change', type: 'float'},
               {name:     'pctChange', type: 'float'},
               {name:     'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
            ]
        });
        store.loadData(myData);

            // create the Grid
        var grid1 = new Ext.grid.GridPanel({
            store: store,
            columns: [
                {id:    'company',header: "Company",  160, sortable: true, dataIndex: 'company'},
                {header:     "Price",  75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},
                {header:     "Change",  75, sortable: true, renderer: change, dataIndex: 'change'},
                {header:     "% Change",  75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
                {header:     "Last Updated",  85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
            ],
            stripeRows:     true,
            autoExpandColumn:     'company',
            height:    350,
                600,
            title:    'Array Grid1',
                //most important as follow
            enableDragDrop: true,
            dropConfig: {
                appendOnly:    true
            },
            ddGroup:     "GridDD"
        });

        grid1.render(    'grid1-example');
        
            //grid2 -----
         var myData2 = [
            [    'JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],
            [    'McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],
            ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],
            [    'Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],
            [    'Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],
            [    'The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],
            [    'The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],
            [    'The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],
            [    'United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],
            [    'Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],
            [    'Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']
        ];
             var store2 = new Ext.data.SimpleStore({
            fields: [
               {name:     'company'},
               {name:     'price', type: 'float'},
               {name:     'change', type: 'float'},
               {name:     'pctChange', type: 'float'},
               {name:     'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
            ]
        });
        store2.loadData(myData2);
        
             var grid2 = new Ext.grid.GridPanel({
            store: store2,
            columns: [
                {id:    'company',header: "Company",  160, sortable: true, dataIndex: 'company'},
                {header:     "Price",  75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},
                {header:     "Change",  75, sortable: true, renderer: change, dataIndex: 'change'},
                {header:     "% Change",  75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
                {header:     "Last Updated",  85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
            ],
            stripeRows:     true,
            autoExpandColumn:     'company',
            height:    350,
                600,
            title:    'Array Grid2',
                //most important as follow
            enableDragDrop: true,
            dropConfig: {
                appendOnly:    true
            },
            ddGroup:     "GridDD2"
        });

        grid2.render(    'grid2-example');
        
            //grid1->grid2
        //this is a grid DragDrop
        var ddrow = new Ext.dd.DropTarget(grid2.getEl(), {
            ddGroup:     "GridDD",  // Data come from
            // copy:true,
            notifyDrop : function(dd, e, data){
                    var rows=grid1.getSelectionModel().getSelections();
                    var count = rows.length;
                    var cindex=dd.getDragData(e).rowIndex;
                    var array=[];
                    for(var i=0;i<count;i++){
                        var index = cindex+i;
                    array.push(index);
                }
                
                store2.insert(cindex,data.selections);     //在grid2中新增拖动列
                grid2.getView().refresh(); 
                grid2.getSelectionModel().selectRows(array);     //选中拖动过来的列
            }
        });

    原文地址：http://www.cnblogs.com/patrickchen/archive/2008/10/29/1322025.html
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  • 原文地址：https://www.cnblogs.com/myssh/p/1736106.html
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