This samples shows how to add a custom renderer / editor to a DataGridView cell.
Sample Code
qx.Class.define("my.JSONCellRenderer", { extend:wisej.web.datagrid.cellRenderer.Cell, members: {/** * Returns the value to render inside the cell. * * This method may be overridden by sub classes. * * @param cellInfo {Map} The information about the cell. * See {@link qx.ui.table.cellrenderer.Abstract#createDataCellHtml}. */_getCellValue:function (cellInfo) {var jsonObj =JSON.parse(cellInfo.value);return"<b>"+jsonObj.Value1 +"</b><br/>"+jsonObj.Value2 +"<br/>"+jsonObj.Value3; } }});