I struggled for ages with the problem of having controls show through a control that was painted on top of them. It seems that ControlStyles.SupportsTransparentBackColor just allowed the control to pick up the container's background colour/image and
ie6 下背景图片不透明的方法,加上下面的js即可解决 //解决IE6下图片不透明 function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6. { var arVersion = navigator.appVersion.split("MSIE") var version = parseFloat(arVersion[1]) if ((version >= 5.5) &