WPF xps打印预览问题
问题
-
怎么能让所有的列都显示，实现预览打印！
我的代码实现：
第一步：
public class FileHelper
{
#region GetXPSFromDialog
/// <summary>
/// GetXPSFromDialog
/// </summary>
/// <param name="isSaved"></param>
/// <returns></returns>
public static string GetXPSFromDialog(bool isSaved)
{
if (isSaved)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "XPS Document files (*.xps)|*.xps|Txt Document files(*.txt)|*.txt";
saveFileDialog.FilterIndex = 1;
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
return saveFileDialog.FileName;
}
else
{
return null;
}
}
else return string.Format("{0}\\temp.xps", Environment.CurrentDirectory);//制造一个临时存储
}
#endregion
#region 打开XPS文件
/// <summary>
/// 打开XPS文件
/// </summary>
/// <returns></returns>
public static string OpenXPSFileFromDialog()
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "XPS Document Files(*.xps)|*.xps";
if (openFileDialog.ShowDialog() == DialogResult.OK)
return openFileDialog.FileName;
else
return null;
}
#endregion
#region 保存XPS文件
/// <summary>
/// 保存XPS文件
/// </summary>
/// <param name="page"></param>
/// <param name="isSaved"></param>
/// <returns></returns>
public static bool SaveXPS(FixedPage page, bool isSaved)
{
FixedDocument fixedDoc = new FixedDocument();//创建一个文档 fixedDoc.DocumentPaginator.PageSize = new Size(96 * 8.5, 96 * 11);
fixedDoc.DocumentPaginator.PageSize = new Size(96 * 8.5, 96 * 11);
PageContent pageContent = new PageContent();
((IAddChild)pageContent).AddChild(page);
fixedDoc.Pages.Add(pageContent);//将对象到当前文档中
string containerName = GetXPSFromDialog(isSaved);
if (containerName != null)
{
try
{
File.Delete(containerName);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
XpsDocument _xpsDocument = new XpsDocument(containerName, FileAccess.Write);
XpsDocumentWriter xpsdw = XpsDocument.CreateXpsDocumentWriter(_xpsDocument);
xpsdw.Write(fixedDoc);//写入XPS文件
_xpsDocument.Close();
return true;
}
else return false;
}
#endregion
#region 装入到显示容器
static XpsDocument xpsPackage = null;
/// <summary>
/// 装入到显示容器
/// </summary>
/// <param name="xpsFileName"></param>
/// <param name="viewer"></param>
public static void LoadDocumentViewer(string xpsFileName, DocumentViewer viewer)
{
XpsDocument oldXpsPackage = xpsPackage;//保存原来的XPS
xpsPackage = new XpsDocument(xpsFileName, FileAccess.Read, CompressionOption.NotCompressed);//从文件中读取文档
FixedDocumentSequence fixedDocumentSequence = xpsPackage.GetFixedDocumentSequence();//从XPS文档对象得到FixedDocumentSequence
viewer.Document = fixedDocumentSequence as IDocumentPaginatorSource;
if (oldXpsPackage != null)
oldXpsPackage.Close();
xpsPackage.Close();
}
#endregion
}第二步：
<FixedPage xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:extVisifireChart="clr-namespace:Visifire.Charts;assembly=WPFVisifire.Charts"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" >
<!--<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="820" Background="Yellow" Canvas.Top="40" Name="grid_showData">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid Grid.Row="1">
<extVisifireChart:Chart Name="visifire_Times" Margin="20,20,0,20" HorizontalAlignment="Left" VerticalAlignment="Stretch" Width="260" Height="400"/>
<extVisifireChart:Chart Name="visifire_Dosage" Margin="320,20,20,20" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
</Grid>
<Grid Grid.Row="2">
<extVisifireChart:Chart Name="visifire_PerbeddayUsage" Margin="20,0,20,20" Height="400" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
</Grid>
</Grid>-->
<Grid x:Name="frame" Margin="0,0,0,0" >
<Canvas Margin="0,0,0,8">
<!--<Rectangle Margin="0" Stroke="Black" Fill="#FF4B4B9F" Opacity="0.4" RadiusX="5" RadiusY="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Canvas.Left="3" Canvas.Top="2"/>-->
<Label Width="530" FontSize="20" HorizontalContentAlignment="Center" HorizontalAlignment="Center" Margin="164,6,153,0" Name="lbl_showDataTitle" VerticalAlignment="Top" />
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="Yellow" Canvas.Top="40" Name="grid_showData">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<DataGrid Name="dgShowData" AutoGenerateColumns="True" ScrollViewer.HorizontalScrollBarVisibility="Disabled" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" CanUserAddRows="False" HeadersVisibility="Column" GridLinesVisibility="Horizontal" >
<DataGrid.ColumnHeaderStyle>
<Style TargetType="DataGridColumnHeader">
<Setter Property="HorizontalContentAlignment" Value="Center"></Setter>
<Setter Property="FontSize" Value="18"></Setter>
</Style>
</DataGrid.ColumnHeaderStyle>
</DataGrid>
</Grid>
</Canvas>
</Grid>
</Grid>
</FixedPage>第三步：
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="Workpiece.PrintWindow"
x:Name="Window"
Title="PrintWindow"
UseLayoutRounding="True"
Width="640" Height="480" Loaded="Window_Loaded">
<Grid x:Name="LayoutRoot">
<DocumentViewer x:Name="docViewer" />
</Grid>
</Window>public PrintWindow()
{
this.InitializeComponent();
// Insert code required on object creation below this point.
}
//传递一个公共的数据类
public string fixedDocFile;
private void Window_Loaded(object sender, RoutedEventArgs e)
{
FileHelper.LoadDocumentViewer(fixedDocFile, docViewer);
}第四步：
//打印
private void button1_Click(object sender, RoutedEventArgs e)
{
Uri printViewUri = new Uri("/Print/FixPage.xaml", UriKind.Relative);
FixedPage printPage = (FixedPage)Application.LoadComponent(printViewUri);
DataGrid dg = printPage.FindName("dgShowData") as DataGrid;
dg.ItemsSource = GetDataList().Tables[0].DefaultView;
Label lbl = printPage.FindName("lbl_showDataTitle") as Label;
lbl.Content = "T_Users";
Grid mygrid = printPage.FindName("grid_showData") as Grid;
FileHelper.SaveXPS(printPage, false);
string xpsFileName = FileHelper.GetXPSFromDialog(false); //得到临时的文件存储
PrintWindow window = new PrintWindow(); //调用显示容器
window.fixedDocFile = xpsFileName;
printPage.Width = dg.ActualWidth;
MessageBox.Show(mygrid.ActualWidth.ToString() + "___" + dg.ActualWidth + "___" + printPage.ActualWidth);
window.Show();}
麻烦大侠指导！
wy926
