在WPF中使用PrintDialog.PrintDocument方法进行打印
使用PrintDialog.PrintDocument方法进行打印需要提前布局流文档,流文档不能直接在编辑器中显示,可以考虑在用户控件或者窗口中进行布局后,将代码拷贝进流文档中。
对流文档进行数据赋值时,可以考虑在流文档中预定义TextBlock文本,对其进行命名。之后在渲染时,通过遍历源数据中的属性名,在流文档中查找相应的TextBlock文本,找到后对其进行赋值。
打印参数设置等思路可以参考:TSC TTP-244Pro标签打印机打印步骤小结
1、流文档示例
<FlowDocument xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" FontFamily="宋体"> <FlowDocument.Resources> <Style x:Key="LineStyle" TargetType="{x:Type Line}"> <Setter Property="Stroke" Value="Black"/> <Setter Property="StrokeThickness" Value="1"/> </Style> </FlowDocument.Resources> <Paragraph> <Border> <Canvas Name="MainCanvas" Width="200" Height="100" Background="White"> <Line Style="{StaticResource LineStyle}" X1="3" Y1="3" X2="194" Y2="3"/> <Line Style="{StaticResource LineStyle}" X1="194" Y1="3" X2="194" Y2="96"/> <Line Style="{StaticResource LineStyle}" X1="3" Y1="96" X2="194" Y2="96"/> <Line Style="{StaticResource LineStyle}" X1="3" Y1="3" X2="3" Y2="96"/> <Grid Canvas.Left="5" Canvas.Top="5" Width="190" Height="90"> <Grid.RowDefinitions> <RowDefinition Height="1*"/> <RowDefinition Height="1*"/> <RowDefinition Height="1*"/> <RowDefinition Height="1*"/> <RowDefinition Height="2"/> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="123456有限公司" TextAlignment="Center" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Bottom"/> <StackPanel Grid.Row="1" Orientation="Horizontal"> <TextBlock Text="商品批号:" FontSize="12" Margin="5,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Bottom"/> <Line Style="{StaticResource LineStyle}" X1="-5" Y1="21" X2="113" Y2="21"/> </StackPanel> <StackPanel Grid.Row="2" Orientation="Horizontal"> <TextBlock Text="物料编号 :" FontSize="12" Margin="5,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Bottom"/> <Line Style="{StaticResource LineStyle}" X1="-5" Y1="21" X2="113" Y2="21"/> </StackPanel> <StackPanel Grid.Row="3" Orientation="Horizontal"> <TextBlock Text="订 单 号 :" FontSize="12" Margin="5,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Bottom"/> <Line Style="{StaticResource LineStyle}" X1="-5" Y1="21" X2="113" Y2="21"/> </StackPanel> </Grid> <!-- 商品批号 --> <TextBlock Name="BatchNumber" Canvas.Left="75" Canvas.Top="34" FontSize="12" Text="商品批号"/> <!-- 物料编号 --> <TextBlock Name="MaterialNumber" Canvas.Left="75" Canvas.Top="56" FontSize="12" Text="物料编号"/> <!-- 订单号 --> <TextBlock Name="OrderNumber" Canvas.Left="75" Canvas.Top="78" FontSize="12" Text="订单号"/> </Canvas> </Border> </Paragraph> </FlowDocument>
2、打印实体类
public class PrintModel { /// <summary> /// 批号 /// </summary> public string BatchNumber { get; set; } /// <summary> /// 订单号 /// </summary> public string OrderNumber { get; set; } /// <summary> /// 物料代码 /// </summary> public string MaterialNumber { get; set; } }
3、渲染类
public interface IDocumentRenderer { void Render(FlowDocument doc, object data); } public class CommonDocumentRenderer : IDocumentRenderer { public void Render(FlowDocument doc, object data) { var model = data as PrintModel; if (model == null) { throw new ArgumentException("data is not PrintModel"); } var type = typeof(PrintModel); var properties = type.GetProperties(); foreach (var property in properties) { //文本赋值 if (doc.FindName(property.Name) is TextBlock textBlock) { textBlock.Text = property.GetValue(model)?.ToString(); } } } }
4、打印代码示例
public void Print(FlowDocument document, object data, string printer, int copyCount) { var renderer = new CommonDocumentRenderer(); renderer.Render(document, data); Print(document, printer, entity.Description, copyCount); } /// <summary> /// 打印 /// </summary> /// <param name="document">流文档</param> /// <param name="printer">打印机名称</param> /// <param name="description">打印描述</param> /// <param name="copyCount">打印个数</param> public static void Print(FlowDocument document, string printer, string description, int copyCount) { var localPrintServer = new LocalPrintServer(); var printQueue = localPrintServer.GetPrintQueue(printer); if (printQueue.IsInError) { throw new Exception("打印机处于错误状态"); } var printDialog = new PrintDialog { PrintQueue = printQueue, //打印队列 PrintTicket = {CopyCount = copyCount} //打印个数 }; //设置纸张大小 var pageWidth = (int) Math.Ceiling(printDialog.PrintableAreaWidth); //小标签:114 var pageHeight = (int) Math.Ceiling(printDialog.PrintableAreaHeight); //小标签:227 printDialog.PrintTicket.PageMediaSize = new PageMediaSize(pageWidth, pageHeight); //设置纸张边距 var paperSize = GetPaperSize(printer); //小标签:118*246 var offsetX = (int) Math.Ceiling((paperSize.Width - pageWidth) / 2f); var offsetY = (int) Math.Ceiling((paperSize.Height - pageHeight) / 2f); document.PagePadding = new Thickness(offsetX, offsetY, offsetX, offsetY); //打印 var paginator = ((IDocumentPaginatorSource) document).DocumentPaginator; printDialog.PrintDocument(paginator, description); }
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