<cc1:ToggleButtonExtender    ID="ToggleButtonExtender1"                                                               runat="server"                               

TargetControlID="CheckBox1"
                     ImageHeight="16"
                     ImageWidth="16"
                     UncheckedImageUrl="~/pict/ToggleButton_Unchecked.gif"
                     CheckedImageUrl="~/pict/ToggleButton_Checked.gif"
                     CheckedImageAlternateText="Check"
                     UncheckedImageAlternateText="UnCheck"
                     >

这个控件很简单，只是图片的选择要注意，否则可能导致界面不友好！