如何将 xaml 页面转换为 pdf 文件并在 UWP 应用程序内的 pdf 查看器中显示？
How to convert a xaml page to pdf file and show it in a pdf viewer inside a UWP application?
我正在尝试使用 Syncfusion PDF 查看器，但为了使用它，我最终必须将 xaml 页面另存为 pdf 文件。我该怎么做？
我遵循了这个 link 但它没有给我想要的东西。 XAML to PDF Conversion
我正在尝试使用下面的代码从我的视图模型 class 中保存一个 xaml 页面 [new GenericManifestPDF(_manifestPDFDataModel);] 并得到这个错误：此行中的“值不在预期范围内”await renderTargetBitmap.RenderAsync(new GenericManifestPDF(_manifestPDFDataModel));
PdfDocument document = new PdfDocument();
//Add a new page
PdfPage page = document.Pages.Add();
//Initialize render to bitmap
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var renderTargetBitmap = new RenderTargetBitmap();
//Create a Bitmap from XAML page
await renderTargetBitmap.RenderAsync(new GenericManifestPDF(_manifestPDFDataModel));
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
//Save the XAML in bitmap image
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
//Load and draw the bitmap image in PDF
PdfImage img = PdfImage.FromStream(stream.AsStream());
if (img.Width > img.Height)
document.PageSettings.Orientation = PdfPageOrientation.Portrait;
else document.PageSettings.Orientation = PdfPageOrientation.Landscape;
var section = document.Sections.Add();
section.PageSettings.Size = new SizeF(img.Width, img.Height);
page = section.Pages.Add();
page.Graphics.DrawImage(img, new RectangleF(0, 0, img.Width, img.Height));
}
//Save the document
MemoryStream docStream = new MemoryStream();
document.Save(docStream);
//Close the document
document.Close(true);
Save(docStream, "SampleManifest.pdf");
这是保存方法：
public async void Save(Stream stream, string filename)
{
stream.Position = 0;
StorageFile stFile;
if (!(Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons")))
{
FileSavePicker savePicker = new FileSavePicker();
savePicker.DefaultFileExtension = ".pdf";
savePicker.SuggestedFileName = "Output";
savePicker.FileTypeChoices.Add("Adobe PDF Document", new List<string>() { ".pdf" });
stFile = await savePicker.PickSaveFileAsync();
}
else
{
StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
stFile = await local.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
}
if (stFile != null)
{
Windows.Storage.Streams.IRandomAccessStream fileStream = await stFile.OpenAsync(FileAccessMode.ReadWrite);
Stream st = fileStream.AsStreamForWrite();
st.Write((stream as MemoryStream).ToArray(), 0, (int)stream.Length);
st.Flush();
st.Dispose();
fileStream.Dispose();
MessageDialog msgDialog = new MessageDialog("Do you want to view the Document?", "File created.");
UICommand yesCmd = new UICommand("Yes");
msgDialog.Commands.Add(yesCmd);
UICommand noCmd = new UICommand("No");
msgDialog.Commands.Add(noCmd);
IUICommand cmd = await msgDialog.ShowAsync();
if (cmd == yesCmd)
{
// Launch the retrieved file
bool success = await Windows.System.Launcher.LaunchFileAsync(stFile);
}
}
}
这就是我在上面提到的页面构造函数中绑定数据的方式：
public GenericManifestPDF(ManifestPDFDataModel PDFDataModel)
{
this.InitializeComponent();
Function.Text = "Function :" + PDFDataModel.Function;
Counts.Text = "Count :" + PDFDataModel.Counts;
PrintedValue.Text = "Printed :" + PDFDataModel.CreationDate;
RouteValue.Text = "Route :" + PDFDataModel.Route;
BatchIDValue.Text = "Batch :" + PDFDataModel.BatchID;
BatchBarcodeText.Text = "Batch Barcode :" + PDFDataModel.Barcode;
IBarcodeWriter writer = new BarcodeWriter
{
Format = BarcodeFormat.CODE_39,
Options = new ZXing.Common.EncodingOptions
{
Height = 100,
Width = 450
}
};
var result = writer.Write(PDFDataModel.Barcode);
BarcodeImage.Source = result;
PDFItemsList.ItemsSource = PDFDataModel.ItemsPDFList;
}
这是页面的 xaml 代码：
<Grid x:Name="ManifestPDFGrid">
<Grid.RowDefinitions>
<RowDefinition Height="30*"/>
<RowDefinition Height="70*"/>
</Grid.RowDefinitions>
<Grid BorderBrush="Black" BorderThickness="2" Margin="30">
<Grid.RowDefinitions>
<RowDefinition Height="80*"/>
<RowDefinition Height="20*"/>
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="Manifest PDF Report" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="Function" Foreground="Black" Grid.Row="1" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="Counts" Grid.Row="2" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock x:Name="PrintedValue" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="RouteValue" Foreground="Black" Grid.Row="1" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="BatchIDValue" Grid.Row="2" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="2">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Image x:Name="BarcodeImage" Margin="20,0,0,0" HorizontalAlignment="Center"/>
<TextBlock x:Name="BatchBarcodeText" Grid.Row="1" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
</Grid>
<Grid Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Text="Delivered By :" Foreground="Black" Margin="20,0,0,0" VerticalAlignment="Center"/>
<TextBlock Text="Batch Delivery Time :" Foreground="Black" Grid.Column="1" Margin="20,0,0,0" VerticalAlignment="Center"/>
</Grid>
</Grid>
<Grid Grid.Row="2">
<Grid.RowDefinitions>
<RowDefinition Height="10*"/>
<RowDefinition Height="90*"/>
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock FontWeight="Bold" Text="Carrier/PKG/BILL#" Foreground="Black" TextDecorations="Underline" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="1" Foreground="Black" TextDecorations="Underline" Text="Location/Item Type" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="2" Foreground="Black" TextDecorations="Underline" Text="Deliver To/ Sender" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="3" Foreground="Black" TextDecorations="Underline" Text="DATE/TIME/PO/Control#" Margin="20,20,0,0"/>
</Grid>
<ListView Grid.Row="1" x:Name="PDFItemsList" IsItemClickEnabled="False">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="BorderThickness" Value="0,0,0,1" />
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="Width" Value="Auto"/>
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<ContentControl Style="{StaticResource EmptyContentControlStyle}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding CarrierName}" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding PackageID}" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Bill}" Foreground="Black" Grid.Row="2" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding Location}" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding ItemType}" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Quantity}" Foreground="Black" Grid.Row="2" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="2" HorizontalAlignment="Right">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding DeliverTo}" HorizontalAlignment="Right" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Sender}" HorizontalAlignment="Right" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="" Foreground="Black" HorizontalAlignment="Right" TextDecorations="Underline" Grid.Row="2" Margin="20,20,0,0"/>
<TextBlock Text="Signature" HorizontalAlignment="Right" Foreground="Black" FontWeight="ExtraLight" Grid.Row="3" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="3" HorizontalAlignment="Right">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding CreationDate}" HorizontalAlignment="Right" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding PONumber}" HorizontalAlignment="Right" Grid.Row="1" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding ControlNumber}" HorizontalAlignment="Right" Grid.Row="2" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="" Foreground="Black" TextDecorations="Underline" Grid.Row="3" Margin="20,20,0,0"/>
<TextBlock Text="Print Name Here" HorizontalAlignment="Right" Foreground="Black" FontWeight="ExtraLight" Grid.Row="4" Margin="20,20,0,0"/>
</Grid>
</Grid>
</ContentControl>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
</Grid>
我可以将其保存为 pdf 格式，但显示不正确，我想我需要在此处进行一些更改
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
//Load and draw the bitmap image in PDF
PdfImage img = PdfImage.FromStream(stream.AsStream());
if (img.Width > img.Height)
document.PageSettings.Orientation = PdfPageOrientation.Portrait;
else
document.PageSettings.Orientation = PdfPageOrientation.Landscape;
var section = document.Sections.Add();
section.PageSettings.Size = new SizeF(img.Width, img.Height);
PdfPage page = section.Pages.Add();
page.Graphics.DrawImage(img, new RectangleF(0, 0, img.Width, img.Height));
}
我现在面临的唯一问题是如何根据列表视图项目生成pdf页面。上面给出的代码每次只生成 1 页，因此列表不会完全可见。
提前致谢。
您可以直接将 pdf 文件保存在 Windows.Storage.ApplicationData.Current.LocalFolder 中并使用 Windows.Data.Pdf Namespace API 在应用程序中显示 pdf，而不是调用 Windows.System.Launcher.LaunchFileAsync(stFile) 方法启动其他应用程序打开 pdf文件。
有关详细信息，请参阅 UWP PDF document sample。
我正在尝试使用 Syncfusion PDF 查看器，但为了使用它，我最终必须将 xaml 页面另存为 pdf 文件。我该怎么做？
我遵循了这个 link 但它没有给我想要的东西。 XAML to PDF Conversion
我正在尝试使用下面的代码从我的视图模型 class 中保存一个 xaml 页面 [new GenericManifestPDF(_manifestPDFDataModel);] 并得到这个错误：此行中的“值不在预期范围内”await renderTargetBitmap.RenderAsync(new GenericManifestPDF(_manifestPDFDataModel));
PdfDocument document = new PdfDocument();
//Add a new page
PdfPage page = document.Pages.Add();
//Initialize render to bitmap
var logicalDpi = DisplayInformation.GetForCurrentView().LogicalDpi;
var renderTargetBitmap = new RenderTargetBitmap();
//Create a Bitmap from XAML page
await renderTargetBitmap.RenderAsync(new GenericManifestPDF(_manifestPDFDataModel));
var pixelBuffer = await renderTargetBitmap.GetPixelsAsync();
//Save the XAML in bitmap image
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
//Load and draw the bitmap image in PDF
PdfImage img = PdfImage.FromStream(stream.AsStream());
if (img.Width > img.Height)
document.PageSettings.Orientation = PdfPageOrientation.Portrait;
else document.PageSettings.Orientation = PdfPageOrientation.Landscape;
var section = document.Sections.Add();
section.PageSettings.Size = new SizeF(img.Width, img.Height);
page = section.Pages.Add();
page.Graphics.DrawImage(img, new RectangleF(0, 0, img.Width, img.Height));
}
//Save the document
MemoryStream docStream = new MemoryStream();
document.Save(docStream);
//Close the document
document.Close(true);
Save(docStream, "SampleManifest.pdf");
这是保存方法：
public async void Save(Stream stream, string filename)
{
stream.Position = 0;
StorageFile stFile;
if (!(Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons")))
{
FileSavePicker savePicker = new FileSavePicker();
savePicker.DefaultFileExtension = ".pdf";
savePicker.SuggestedFileName = "Output";
savePicker.FileTypeChoices.Add("Adobe PDF Document", new List<string>() { ".pdf" });
stFile = await savePicker.PickSaveFileAsync();
}
else
{
StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
stFile = await local.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
}
if (stFile != null)
{
Windows.Storage.Streams.IRandomAccessStream fileStream = await stFile.OpenAsync(FileAccessMode.ReadWrite);
Stream st = fileStream.AsStreamForWrite();
st.Write((stream as MemoryStream).ToArray(), 0, (int)stream.Length);
st.Flush();
st.Dispose();
fileStream.Dispose();
MessageDialog msgDialog = new MessageDialog("Do you want to view the Document?", "File created.");
UICommand yesCmd = new UICommand("Yes");
msgDialog.Commands.Add(yesCmd);
UICommand noCmd = new UICommand("No");
msgDialog.Commands.Add(noCmd);
IUICommand cmd = await msgDialog.ShowAsync();
if (cmd == yesCmd)
{
// Launch the retrieved file
bool success = await Windows.System.Launcher.LaunchFileAsync(stFile);
}
}
}
这就是我在上面提到的页面构造函数中绑定数据的方式：
public GenericManifestPDF(ManifestPDFDataModel PDFDataModel)
{
this.InitializeComponent();
Function.Text = "Function :" + PDFDataModel.Function;
Counts.Text = "Count :" + PDFDataModel.Counts;
PrintedValue.Text = "Printed :" + PDFDataModel.CreationDate;
RouteValue.Text = "Route :" + PDFDataModel.Route;
BatchIDValue.Text = "Batch :" + PDFDataModel.BatchID;
BatchBarcodeText.Text = "Batch Barcode :" + PDFDataModel.Barcode;
IBarcodeWriter writer = new BarcodeWriter
{
Format = BarcodeFormat.CODE_39,
Options = new ZXing.Common.EncodingOptions
{
Height = 100,
Width = 450
}
};
var result = writer.Write(PDFDataModel.Barcode);
BarcodeImage.Source = result;
PDFItemsList.ItemsSource = PDFDataModel.ItemsPDFList;
}
这是页面的 xaml 代码：
<Grid x:Name="ManifestPDFGrid">
<Grid.RowDefinitions>
<RowDefinition Height="30*"/>
<RowDefinition Height="70*"/>
</Grid.RowDefinitions>
<Grid BorderBrush="Black" BorderThickness="2" Margin="30">
<Grid.RowDefinitions>
<RowDefinition Height="80*"/>
<RowDefinition Height="20*"/>
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="Manifest PDF Report" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="Function" Foreground="Black" Grid.Row="1" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="Counts" Grid.Row="2" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock x:Name="PrintedValue" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="RouteValue" Foreground="Black" Grid.Row="1" FontWeight="Bold" Margin="20,20,0,0"/>
<TextBlock x:Name="BatchIDValue" Grid.Row="2" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="2">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Image x:Name="BarcodeImage" Margin="20,0,0,0" HorizontalAlignment="Center"/>
<TextBlock x:Name="BatchBarcodeText" Grid.Row="1" Foreground="Black" FontWeight="Bold" Margin="20,20,0,0"/>
</Grid>
</Grid>
<Grid Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Text="Delivered By :" Foreground="Black" Margin="20,0,0,0" VerticalAlignment="Center"/>
<TextBlock Text="Batch Delivery Time :" Foreground="Black" Grid.Column="1" Margin="20,0,0,0" VerticalAlignment="Center"/>
</Grid>
</Grid>
<Grid Grid.Row="2">
<Grid.RowDefinitions>
<RowDefinition Height="10*"/>
<RowDefinition Height="90*"/>
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock FontWeight="Bold" Text="Carrier/PKG/BILL#" Foreground="Black" TextDecorations="Underline" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="1" Foreground="Black" TextDecorations="Underline" Text="Location/Item Type" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="2" Foreground="Black" TextDecorations="Underline" Text="Deliver To/ Sender" Margin="20,20,0,0"/>
<TextBlock FontWeight="Bold" Grid.Column="3" Foreground="Black" TextDecorations="Underline" Text="DATE/TIME/PO/Control#" Margin="20,20,0,0"/>
</Grid>
<ListView Grid.Row="1" x:Name="PDFItemsList" IsItemClickEnabled="False">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="BorderThickness" Value="0,0,0,1" />
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="Width" Value="Auto"/>
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<ContentControl Style="{StaticResource EmptyContentControlStyle}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
<ColumnDefinition Width="1*"/>
</Grid.ColumnDefinitions>
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding CarrierName}" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding PackageID}" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Bill}" Foreground="Black" Grid.Row="2" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding Location}" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding ItemType}" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Quantity}" Foreground="Black" Grid.Row="2" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="2" HorizontalAlignment="Right">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding DeliverTo}" HorizontalAlignment="Right" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding Sender}" HorizontalAlignment="Right" Foreground="Black" Grid.Row="1" Margin="20,20,0,0"/>
<TextBlock Text="" Foreground="Black" HorizontalAlignment="Right" TextDecorations="Underline" Grid.Row="2" Margin="20,20,0,0"/>
<TextBlock Text="Signature" HorizontalAlignment="Right" Foreground="Black" FontWeight="ExtraLight" Grid.Row="3" Margin="20,20,0,0"/>
</Grid>
<Grid Grid.Column="3" HorizontalAlignment="Right">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding CreationDate}" HorizontalAlignment="Right" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding PONumber}" HorizontalAlignment="Right" Grid.Row="1" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="{Binding ControlNumber}" HorizontalAlignment="Right" Grid.Row="2" Foreground="Black" Margin="20,20,0,0"/>
<TextBlock Text="" Foreground="Black" TextDecorations="Underline" Grid.Row="3" Margin="20,20,0,0"/>
<TextBlock Text="Print Name Here" HorizontalAlignment="Right" Foreground="Black" FontWeight="ExtraLight" Grid.Row="4" Margin="20,20,0,0"/>
</Grid>
</Grid>
</ContentControl>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
</Grid>
我可以将其保存为 pdf 格式，但显示不正确，我想我需要在此处进行一些更改
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)renderTargetBitmap.PixelWidth,
(uint)renderTargetBitmap.PixelHeight,
logicalDpi,
logicalDpi,
pixelBuffer.ToArray());
await encoder.FlushAsync();
//Load and draw the bitmap image in PDF
PdfImage img = PdfImage.FromStream(stream.AsStream());
if (img.Width > img.Height)
document.PageSettings.Orientation = PdfPageOrientation.Portrait;
else
document.PageSettings.Orientation = PdfPageOrientation.Landscape;
var section = document.Sections.Add();
section.PageSettings.Size = new SizeF(img.Width, img.Height);
PdfPage page = section.Pages.Add();
page.Graphics.DrawImage(img, new RectangleF(0, 0, img.Width, img.Height));
}
我现在面临的唯一问题是如何根据列表视图项目生成pdf页面。上面给出的代码每次只生成 1 页，因此列表不会完全可见。
提前致谢。
您可以直接将 pdf 文件保存在 Windows.Storage.ApplicationData.Current.LocalFolder 中并使用 Windows.Data.Pdf Namespace API 在应用程序中显示 pdf，而不是调用 Windows.System.Launcher.LaunchFileAsync(stFile) 方法启动其他应用程序打开 pdf文件。
有关详细信息，请参阅 UWP PDF document sample。