Silverlight Page turn using C#

2008-06-28T17:36:00.003-04:00

Mitsu of Microsoft France has an excellent WPF and Silverlight Page turn control that is written in C# and it works in Silverlight 2 Beta 2.

He is using ItemsControl to store the pages for the book and that is throwing an exception after turning pages for a few times. I thing there may be an issue with the ItemsControl in the framework itself.

I have created a custom class that you can use instead of the ItemsControl and still use the page turn code.

using System.Collections.Generic;

namespace SLBookDemoApp
{
    public class  BookPageList<T> : List<T>, SLMitsuControls.IDataProvider
    {
        #region IDataProvider Members

        public object GetItem(int index)
        {
            return this[index];
        }

        public int GetCount()
        {
            return this.Count;
        }

        #endregion

    }
}

This class inherits List<T> and implements the required iDataProvider interface.
Your Page no longer needs to implement iDataProvider interface and you can remove the code that implements
this interface from Page.xaml.cs.

Your new Page.xaml.cs looks like this:

<UserControl x:Class="SLBookDemoApp.Page"
    xmlns="http://schemas.microsoft.com/client/2007"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:SLMitsuControls;assembly=SLMitsuControls"
    Loaded="UserControl_Loaded">
    <Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
        <local:UCBook x:Name="book" Margin="150" />
    </Grid>
</UserControl>

Page.xaml.cs looks like  this:

using System.Windows;
using System.Windows.Controls;

namespace SLBookDemoApp
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            BookPageList<FrameworkElement> pages = new BookPageList<FrameworkElement>();

            for (int i = 1; i < 5; i++)
            {
                Button b = new Button();
                if (i % 2 == 1)
                    b.Click += new RoutedEventHandler(Button_Click);
                else
                    b.Click += new RoutedEventHandler(Button_Click_1);

                b.Content = "Page - " + i;

                pages.Add(b);
            }

            book.SetData(pages);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            book.AnimateToNextPage(500);
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            book.AnimateToPreviousPage(500);
        }
    }
}

Venkat Polisetti

Silverlight Page turn using C#