主题：请教下条码标签的设计

看了下帮助文件 自定义设计了一个标签 代码如下  现在有几个问题 

1.如何加入条码

2.自定义了纸张 为什么生成以后的页面 内容不是铺满整个页面 而是偏右下呢

 

 

Dim doc As New PrintDoc
doc.PageSetting.Width = 60
doc.PageSetting.Height = 40

doc.Stacking = prt.StackingRulesEnum.InlineLeftToRight

    Dim ra As New prt.RenderArea
    Dim rt As prt.RenderText
    ra.Width = 50
    ra.Height = 30
    ra.Style.Spacing.All = 1
    ra.Style.Borders.All = New prt.Linedef(0.3, Color.black)
    ra.SplitHorzBehavior = prt.SplitBehaviorEnum.Never
    ra.SplitVertBehavior = prt.SplitBehaviorEnum.Never
    Doc.Body.ChildRen.Add(ra)

    rt = New prt.RenderText
    rt.Text = "名称:" & "海尔冰箱"
    rt.X = 2
    rt.Y = 2
    ra.Children.Add(rt)

    rt = New prt.RenderText
    rt.Text = "单位" & "台"
    rt.X = 2
    rt.Y = "Prev.Bottom + 2"
    ra.Children.Add(rt)

    rt = New prt.RenderText
    rt.Text = "条码:" & "5690058765423"
    rt.X = 2
    rt.Y = "Prev.Bottom + 2"
    ra.Children.Add(rt)

    Doc.Preview()