问题
I have a WPF page used as an input form which contains a number of controls on one side, and a flow document reader on the other.
I want to set the content of this document reader to a specific part of a flow document which is loaded when the form is loaded, (via a loaded event).
I have found an article explaining how to do this, using fragments, but the examples shown are only expressed in XAML.
In my case I need to update the document property of the flow document reader when the user gives focus to one the controls (I have wired up the events already) therefore I need to do this in the code behind rather than XAML.
I have tried setting the document property to:
Document#Control_Sport
where Document is the name of XAML flow document and Control_Sport is the name of the fragment I need to navigate to.
However this gives an error, it doesn't like the hash sign being there.
I tried looking on MSDN but its XAML only. Is there a way I can do this through code?
Any help would be appreciated.
Felix,
Link to MSDN article: http://msdn.microsoft.com/en-us/library/ms750478.aspx#FragmentNavigation
回答1:
You can navigate to any Block within a FlowDocument by calling Block.BringIntoView.
回答2:
First, create a Frame object inside your Page or Window object. Setting the JournalOwnership property to "OwnsJournal" will give the document its own navigation bar (forward and back arrows plus a history). You will probably need to add additional parameters to size and locate the frame within your document as well, but I didn't include them in my example since I don't know what your app requires:
<Frame Name="MyFrame" JournalOwnership="OwnsJournal" />
Then, create a pack URI for your document fragment. This document is assumed to be in the same directory as the application's executable; you will need to add more to the path to navigate to the directory where the document resides in your project:
Uri MyUri = new Uri("pack://application:,,,/MyXamlDocument.xaml#MyFragment");
Then, navigate to it from inside your button's Click handler or whatever other means you like to initiate the navigation:
MyFrame.Navigate(MyUri);
来源：https://stackoverflow.com/questions/2180517/navigating-to-a-specific-fragment-in-a-flow-document-from-code-behind