OrangeUI

 
ListBox添加头分隔线，也就是第一个列表项顶部的线，
只要把SelfOwnMaterial.DrawGroupBeginDevideParam.IsFill设置为True就可以了,

ListBox添加尾分隔线，也就是最后一个列表项底部的线，
只要把SelfOwnMaterial.DrawGroupEndDevideParam.IsFill设置为True就可以了,

效果如下:

默认情况下，ListBox.SelfOwnMaterial.IsSimpleDrawGroupBeginDevide为True,
ListBox.SelfOwnMaterial.IsSimpleDrawGroupEndDevide为True,
它表示使用简单常用的头尾分隔线，即宽度1个像素的细线,
所以如果要自定义ListBox头尾分隔线的宽度,
那就要先把SelfOwnMaterial.IsSimpleDrawGroupBeginDevide设置为False,
SelfOwnMaterial.IsSimpleDrawGroupEndDevide设置为False,

效果如下:

因为IsSimpleDrawGroupBeginDevide和IsSimpleDrawGroupEndDevide为False了之后，
DrawGroupBeginDevideParam和DrawGroupEndDevideParam会画在整个列表项上面，
这样，整个列表项都被分隔线盖住了，
所以，还需要指定头尾分隔线绘制参数的高度,
 
把DrawGroupBeginDevideParam.DrawEffectSetting.Enabled设置为True,
DrawGroupBeginDevideParam.DrawEffectSetting.Height设置为2,
DrawGroupBeginDevideParam.DrawEffectSetting.PositionVertType设置为dppvtTop,
DrawGroupBeginDevideParam.DrawEffectSetting.SizeType设置为dpstPixel,
 
把DrawGroupEndDevideParam.DrawEffectSetting.Enabled设置为True,
DrawGroupEndDevideParam.DrawEffectSetting.Height设置为2,
DrawGroupEndDevideParam.DrawEffectSetting.PositionVertType设置为dppvtBottom,
DrawGroupEndDevideParam.DrawEffectSetting.SizeType设置为dpstPixel,
 
效果如下:

再设置一致的分隔线颜色:
DrawGroupBeginDevideParam.FillColor.Color设置为#80808080,
DrawGroupEndDevideParam.FillColor.Color设置为#80808080,