1、代码没有问题;
2、如果还不能打印,试试改成这样
Dim t As Table = Tables("条码") '指定数据来源表
Dim idx As Integer = 0
For i As Integer = 0 To t.Rows.count - 1
Dim doc As New PrintDoc
doc.PageSetting.Width = 65 '纸张宽度为65毫米
Doc.PageSetting.Height = 25
doc.AutoRotate = False
Dim rg As New prt.RenderGraphics
Dim Bar As New BarCodeBuilder
Bar.Symbology = Barpro.Symbology.Code128
Dim r As Row =t.Rows(i)
Bar.Code = r("条码")
Bar.HumanReadableText = r("生成条码")
Bar.CodeAlignment = Barpro.Alignment.BelowLeft
Bar.Font = New Font("Consolas",11)
Bar.BarWidth = 0.25
Bar.BarHeight = 10
Bar.Text = r("型号")
Bar.TextFont = New Font("OCR-B-Seagull",CSng(10.5),FontStyle.Bold)
Bar.TextAlignment = Barpro.Alignment.AboveLeft
Bar.TopMargin = 1
Bar.BottomMargin = 1
Bar.Code128CharSet = Barpro.Code128.B
rg = new prt.RenderGraphics
bar.DrawOnCanvas(rg.Graphics,0,0,1)
rg.x=9
rg.y = 3
'rg.Style.Spacing.All = 2
Doc.Body.Children.Add(rg)
idx += 1
Doc.PrinterName = "TSC TTP-244 Pro"
'Doc.print
Doc.Preview()
Next