Catch XamlParseException : Exception « Windows Presentation Foundation « C# / CSharp Tutorial

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C# / CSharp Tutorial » Windows Presentation Foundation » Exception 
24.128.12.Catch XamlParseException
<Window x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="FlowDocReader Load/Save Sample" Width="640" Height="480">
  <StackPanel>
    <FlowDocumentReader Name="FlowDocRdr" Grid.Row="1"/>
  </StackPanel>
</Window>
//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Forms;
using System.IO;
using System.Windows.Markup;

namespace WpfApplication1
{

    public partial class Window1 : Window
    {

        public Window1()
        {
            InitializeComponent();

            FlowDocument content = null;
            
            OpenFileDialog openFile = new OpenFileDialog();
            openFile.Filter = "FlowDocument Files (*.xaml)|*.xaml|All Files (*.*)|*.*";

            if (openFile.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                FileStream xamlFile = openFile.OpenFile() as FileStream;
                if (xamlFile == nullreturn;
                else
                {   
                    try 
                    
                        content = XamlReader.Load(xamlFileas FlowDocument; 
                        if (content == null
                            throw(new XamlParseException("The specified file could not be loaded as a FlowDocument."));
                    }
                    catch (XamlParseException e)
                    {
                        String error = "There was a problem parsing the specified file:\n\n";
                        error += openFile.FileName;
                        error += "\n\nException details:\n\n";
                        error += e.Message;
                        System.Windows.MessageBox.Show(error);
                        return;
                    }
                    catch (Exception e
                    {
                        String error = "There was a problem loading the specified file:\n\n";
                        error += openFile.FileName;
                        error += "\n\nException details:\n\n";
                        error += e.Message;
                        System.Windows.MessageBox.Show(error);
                        return;
                    }

                    FlowDocRdr.Document = content;
                }
            }
        }
    }
}
WPF Catch Xaml Parse Exception
24.128.Exception
24.128.1.Cross Thread Exception RaisingCross Thread Exception Raising
24.128.2.Cross Thread Exception Raising WorkerThreadCross Thread Exception Raising WorkerThread
24.128.3.Check Exception type for DispatcherUnhandledExceptionCheck Exception type for DispatcherUnhandledException
24.128.4.Raise exception from button click eventRaise exception from button click event
24.128.5.Security ExceptionSecurity Exception
24.128.6.Throw Handled ExceptionThrow Handled Exception
24.128.7.Throw Unhandled ExceptionThrow Unhandled Exception
24.128.8.Throw Unhandled Exception From ThreadThrow Unhandled Exception From Thread
24.128.9.Customize UpdateSourceExceptionFilterCustomize UpdateSourceExceptionFilter
24.128.10.Manage unhandled exceptions that are thrown on secondary worker threads.Manage unhandled exceptions that are thrown on secondary worker threads.
24.128.11.Throw Exception from button click actionThrow Exception from button click action
24.128.12.Catch XamlParseExceptionCatch XamlParseException
24.128.13.Manage unhandled exceptions that are thrown on secondary user interface (UI) threads.Manage unhandled exceptions that are thrown on secondary user interface (UI) threads.
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