使用WPF动态创建xps报表的最佳方法是什么? [英] what is the best approch to create a xps report dynamically using WPF

问题描述

我正在使用wpf动态创建xps报告.我的方法是使用

绘图上下文类提供的用于绘制文本，矩形，线条等的方法，

但是"alignment"不是很正确.我所有的"alignment"都是使用一些复杂的方法完成的

计算.我知道WPF是自由流动的，任何人都可以提出更好的方法，

这样我就可以使用WPF的全部功能，并且可以避免计算.

我将发送一些示例代码:

 visual = 新 DrawingVisual();
drawingContext = visual.RenderOpen();

私有 无效 PrintHeader(){

      x = Sizes.Gutter;
      y = Sizes.Margin;
      Rect rect = 新 Rect(Sizes.Gutter，Sizes.Margin，Sizes.Width，Sizes.Header);
      drawingContext.DrawRectangle(color，Pens.Blueline，rect);
      位图位图= Resources.Logo;
      BitmapSource imgSource = ConvertToBitmapSource(位图);
     drawingContext.DrawImage(imgSource，新 Rect(Sizes.Gutter +  10 ，Sizes.Margin +  10 ， 150 ， 50 )))；

 DrawCentered(GetMetaText(" ).ToUpper()，Font.Header，Brushes.White，rect ，FontSizes.Header);
      rect.Offset( 0 ， 20 );
      DrawCentered(GetMetaText(" )，Font.Body，Brushes.White，rect，FontSizes.Body );
      rect.Offset( 0 ， 10 );
      DrawCentered(GetMetaText(" )，Font.Body，Brushes.White，rect，FontSizes.Body );

 Rect lineRect = 新 Rect(rect.Left， 0 ，rect.Width，Sizes.Leading);
        lineRect.Y =矩形底部-(((( float ) value -bounds.MinY)*矩形.高度/(bounds.Height));

}

  内部 无效 DrawLeft(字符串文本，字体字体，画笔，矩形， int 大小){
      rect.Inflate(-Sizes.Padding，-Sizes.Padding);
      drawingContext.DrawText(新 FormattedText(text，CultureInfo.GetCultureInfo(" )，
                                                FlowDirection.LeftToRight，字体，
                                                 12 ，画笔)，新 Point(rect.X，rect.Y));

    }

    内部 无效 DrawCentered(字符串文本，字体字体，画笔，矩形，浮动大小){
      drawingContext.DrawText(新 FormattedText(text，CultureInfo.GetCultureInfo(" )，
                                  FlowDirection.LeftToRight，字体，
                                  大小，画笔)，新 Point(rect.X，rect.Y));

    }

    内部 无效 DrawRight(字符串文本，字体字体，画笔，矩形，浮动大小){
      rect.Inflate(-Sizes.Padding，-Sizes.Padding);
      drawingContext.DrawText(新 FormattedText(text，CultureInfo.GetCultureInfo(" )，
                                                FlowDirection.LeftToRight，字体，
                                                大小，画笔)，新点(正Y- 20 ，正Y))；
    } 

解决方案

我会使用FlowDocument.这样，您可以在XAML中生成报告.

<FlowDocumentReader>
    <FlowDocument
        Name="flowDocument"
        ColumnWidth="400" FontSize="14" FontFamily="Georgia">
        <Paragraph>
            <Grid>
                <Rectangle Fill="Red" Width="200" Height="100"/>
                <TextBlock Text="Hello World!" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Grid>
        </Paragraph>
    </FlowDocument>
</FlowDocumentReader>

使用一些C#代码将其另存为XPS:

 公共 静态  void  SaveAsXps(字符串路径，FlowDocument文档)
{
    使用( var  package = Package.Open(路径，FileMode.Create))
    {
        使用( var  xpsDocument = 新 XpsDocument(包，System.IO.Packaging.CompressionOption.Maximum))
        {
             var  xpsSerializationManager = 新 XpsSerializationManager(新 XpsPackagingPolicy (xpsDocument)， false )；
             var  documentPaginator =(((IDocumentPaginatorSource)document).DocumentPaginator;
            xpsSerializationManager.SaveAsXaml(documentPaginator);
        }
    }
}

最后是对该函数的调用:

 SaveAsXps(" ，flowDocument);  

Hi,

I am creating xps report dynamically using wpf. My approach was to use the

method provided by drawing context class to draw text, rectangle, line and etc,

but the "alignment" is not so correct. All my "alignment" is done using some complex

calculation. I Know that WPF is freeflowing can any one suggest the better approach,

so that I can use WPF full functionality and I can aviod the calculation.

I will send the some sample code:

visual = new DrawingVisual();
drawingContext = visual.RenderOpen();

private void PrintHeader() {

      x = Sizes.Gutter;
      y = Sizes.Margin;
      Rect rect = new Rect(Sizes.Gutter,Sizes.Margin,Sizes.Width,Sizes.Header);
      drawingContext.DrawRectangle(color,Pens.Blueline,rect);
      Bitmap bitmap = Resources.Logo;
      BitmapSource imgSource = ConvertToBitmapSource(bitmap);
     drawingContext.DrawImage(imgSource, new Rect(Sizes.Gutter + 10, Sizes.Margin + 10, 150, 50));   

 DrawCentered(GetMetaText("Title").ToUpper(), Font.Header, Brushes.White, rect, FontSizes.Header);
      rect.Offset(0,20);
      DrawCentered(GetMetaText("Department"), Font.Body, Brushes.White, rect, FontSizes.Body);
      rect.Offset(0,10);
      DrawCentered(GetMetaText("Phone"), Font.Body, Brushes.White, rect, FontSizes.Body);

 Rect lineRect = new Rect(rect.Left,0,rect.Width,Sizes.Leading);
        lineRect.Y = rect.Bottom - (((float)value - bounds.MinY) * rect.Height / (bounds.Height));

}

  internal void DrawLeft(string text,Typeface font,Brush brush,Rect rect,int size) {
      rect.Inflate(-Sizes.Padding,-Sizes.Padding);
      drawingContext.DrawText(new FormattedText(text,CultureInfo.GetCultureInfo("en-us"),
                                                FlowDirection.LeftToRight,font,
                                                12,brush),new Point(rect.X,rect.Y));

    }

    internal void DrawCentered(string text,Typeface font,Brush brush,Rect rect,float size) {
      drawingContext.DrawText(new FormattedText(text,CultureInfo.GetCultureInfo("en-us"),
                                  FlowDirection.LeftToRight,font,
                                  size,brush),new Point(rect.X,rect.Y));

    }

    internal void DrawRight(string text,Typeface font,Brush brush,Rect rect,float size) {
      rect.Inflate(-Sizes.Padding,-Sizes.Padding);
      drawingContext.DrawText(new FormattedText(text,CultureInfo.GetCultureInfo("en-us"),
                                                FlowDirection.LeftToRight,font,
                                                size,brush),new Point(rect.Y - 20,rect.Y));
    }

解决方案

I would use the FlowDocument. That way, you can produce your report in XAML.

<FlowDocumentReader>
    <FlowDocument
        Name="flowDocument"
        ColumnWidth="400" FontSize="14" FontFamily="Georgia">
        <Paragraph>
            <Grid>
                <Rectangle Fill="Red" Width="200" Height="100"/>
                <TextBlock Text="Hello World!" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Grid>
        </Paragraph>
    </FlowDocument>
</FlowDocumentReader>

With some C# code to save it as XPS:

public static void SaveAsXps(string path, FlowDocument document)
{
    using (var package = Package.Open(path, FileMode.Create))
    {
        using (var xpsDocument = new XpsDocument(package, System.IO.Packaging.CompressionOption.Maximum))
        {
            var xpsSerializationManager = new XpsSerializationManager(new XpsPackagingPolicy(xpsDocument), false);
            var documentPaginator = ((IDocumentPaginatorSource)document).DocumentPaginator;
            xpsSerializationManager.SaveAsXaml(documentPaginator);
        }
    }
}

And finally the call to this function:

SaveAsXps("temp.xps", flowDocument);

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