Undo/Redo

Just edit any data in grid, and then you can check UNDO | REDO functionality which allows you to restore previous state of data.

THIS PAGE CONTAINS SAMPLE FUNCTIONALITY OF PROFESSIONAL EDITION FOR DEMONSTRATION PURPOSE ONLY.
UNAUTHORIZED USE IS PROHIBITED. PLEASE CONTACT SALES@DHTMLX.COM TO OBTAIN A LEGAL COPY OF PROFESSIONAL EDITION.

Source

<link rel="STYLESHEET" type="text/css" href="../../codebase/dhtmlxgrid.css">
<link rel="stylesheet" type="text/css" href="../../codebase/skins/dhtmlxgrid_dhx_skyblue.css">
<script  src="../../codebase/dhtmlxcommon.js"></script>
<script  src="../../codebase/dhtmlxgrid.js"></script>        
<script  src="../../codebase/dhtmlxgridcell.js"></script>
<script  src="../../codebase/ext/dhtmlxgrid_undo.js"></script>        
 
 
<table width="600px">
    <tr>
        <td width="50%" valign="top">
            <div id="gridbox" style="width:100%;height:270px;background-color:white;"></div>
        </td>
    </tr>
    <tr>
        <td>
            <div><input id='z1' type="button"  onclick='mygrid.doUndo();' value='Undo'></div>
            <div><input id='z1' type="button"  onclick='mygrid.doRedo();' value='Redo'></div>
            <div><input id='z1' type="button"  onclick='alert(mygrid.getRedo().length);' value='Get redo count'></div>
            <div><input id='z1' type="button"  onclick='alert(mygrid.getUndo().length)' value='Get undo count'></div>
        </td>
    </tr>
</table>
<br>
<script>function doOnLoad() {
    mygrid = new dhtmlXGridObject('gridbox');
    mygrid.setImagePath("../../codebase/imgs/");
    mygrid.setHeader("Sales,Book Title,Author,Price,In Store,Shipping,Bestseller,Date of Publication");
    mygrid.setInitWidths("50,150,120,80,80,80,80,200");
    mygrid.setColAlign("right,left,left,right,center,left,center,center");
    mygrid.setColTypes("dyn,ed,ed,price,ch,co,ra,ro");
    mygrid.setColSorting("int,str,str,int,str,str,str,date");
    mygrid.init();
    mygrid.setSkin("dhx_skyblue");
    mygrid.loadXML("../common/grid_16_rows_columns_manipulations.xml");
    mygrid.enableUndoRedo();
}</script>