C# 4 and .NET 4

fixed Documents ❘ 1087
The received ObservableCollection is assigned to the menus variable that is used to build
up the fixed page:
internal void NavigationService_LoadCompleted(object sender,
NavigationEventArgs e)
{
menus = e.ExtraData as ObservableCollection;
fixedDocument = new FixedDocument();
var pageContent1 = new PageContent();
fixedDocument.Pages.Add(pageContent1);
var page1 = new FixedPage();
pageContent1.Child = page1;
page1.Children.Add(GetHeaderContent());
page1.Children.Add(GetLogoContent());
page1.Children.Add(GetDateContent());
page1.Children.Add(GetMenuContent());
viewer.Document = fixedDocument;
}
NavigationService.LoadCompleted -= NavigationService_LoadCompleted;
code snippet CreateXps/DocumentPage.xaml.cs
Fixed documents are created with the FixedDocument class. The FixedDocument element only contains
PageContent elements that are accessible via the Pages property. The PageContent elements must be
added to the document in the order they should appear on the page. PageContent defines the content of a
single page.
PageContent has a Child property such that a FixedPage can be associated with it. To the FixedPage you
can add elements of type UIElement to the Children collection. This is where you can add all the elements
you’ve learned about in the last two chapters, including a TextBlock element that itself can contain Inline
and Block elements.
In the sample code, the children to the FixedPage are created with helper methods GetHeaderContent(),
GetLogoContent(), GetDateContent(), and GetMenuContent().
The method GetHeaderContent() creates a TextBlock that is returned. The TextBlock has the Inline
element Bold added, which in turn has the Run element added. The Run element then contains the header
text for the document. With FixedPage.SetLeft() and FixedPage.SetTop() the position of the TextBox
within the fixed page is defined:
private UIElement GetHeaderContent()
{
var text1 = new TextBlock();
text1.FontFamily = new FontFamily("Mangal");
text1.FontSize = 34;
text1.HorizontalAlignment = HorizontalAlignment.Center;
text1.Inlines.Add(new Bold(new Run("cn|elements")));
FixedPage.SetLeft(text1, 170);
FixedPage.SetTop(text1, 40);
return text1;
}
The method GetLogoContent() adds a logo in the form of an Ellipse with a RadialGradientBrush to
the fixed document:
private UIElement GetLogoContent()
{
var ellipse = new Ellipse
{
Width = 90,
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