ext Table中CommandColumn用法

<ext:CommandColumn Width="250" Header="功能菜单" ColumnID="test"  ButtonAlign="Left">

    <Commands>

        <ext:GridCommand CommandName="CPCost" Text="按钮1" />

        <ext:CommandSpacer />

        <ext:GridCommand CommandName="VOCost" Text="按钮2" />

        <ext:CommandSpacer />

        <ext:GridCommand CommandName="CPJD" Text="按钮3" />

        <ext:CommandSpacer />

        <ext:GridCommand CommandName="VOJD" Text="按钮4" />

    </Commands>

</ext:CommandColumn>