JavaScript中使用sencha gridpanel 编辑单元格、改变单元格颜色

{
xtype: 'gridpanel',
region: 'north',
height: 150,
title: 'My Grid Panel',
store: 'A_Test_Store',
columns: [
{
xtype: 'gridcolumn',
dataIndex: 'Name',
text: 'Name',
editor: {
xtype: 'textfield'
}
},
{
xtype: 'gridcolumn',
dataIndex: 'Content',
text: 'Content'
},
{
xtype: 'gridcolumn',
dataIndex: 'Time',
text: 'Time'
}
],
plugins: [
Ext.create('Ext.grid.plugin.CellEditing', {
clicksToEdit: 1, //点击单元格编辑
listeners: {
beforeedit: {
fn: me.onCellEditingBeforeEdit,
scope: me
},
validateedit: {
fn: me.onCellEditingValidateedit,
scope: me
}
}
})
]
}
onCellEditingBeforeEdit: function(editor, e, eOpts) {//动态赋值用.正常情况下不需要该事件.
   e.record.data[e.field]= "my test";
e.value="my test";
e.record.commit(); //提交,不提交无效
}
onCellEditingValidateedit: function(editor, e, eOpts) {
if(e.row==1) //验证逻辑
{
e.cancel=true; //取消
e.record.data[e.field] = e.value;
}
e.record.commit();
}

{
xtype: 'gridcolumn',
renderer: function(value, metaData, record, rowIndex, colIndex, store, view) {
metaData.tdAttr = 'data-qtip="'+record.data.Content+'"';

if(record.data.Content.indexOf('审核通过')!=-1)
{
metaData.style="color:green";
}
else if(record.data.Content.indexOf('拒绝')!=-1)
{
metaData.style="color:red";
}
return value;
}
,
width: '*',
dataIndex: 'Title',
text: '标题'
}