C#

public void constructStartScreen()
        {
            ucSystemStartScreen _ucSystemStartScreen = new ucSystemStartScreen();
            foreach (PluginInterface Plugin in TPlugins.PluginList)
            {
                // Uses selected plug in 
                if (Plugin.getSystemTag() == TPlugins.theSelectedPlugin)
                {
                    ucBaseUserControl theStartScreen = new ucBaseUserControl();
                    theStartScreen = Plugin.getStartScreen();
                    
                    if (theStartScreen != null)
                    {
                        theStartScreen.Dock = DockStyle.Fill;
                        theStartScreen.UserCurrentInfo.SetUserInfo(TUserInfo.UserID);
                        theStartScreen.UserCurrentInfo.IsLogedOn = TUserInfo.IsLogedOn;
                        theStartScreen.UserCurrentInfo.Connection = TUserInfo.Connection;
                        theStartScreen.theSystemDBTag = Plugin.getSystemDBTag();

                        //  theDock.SendConroleToMainTabRequest += new SendConroleToMainTabHandler(SendConroleToMainTabHandler);
                        _ucSystemStartScreen.setStartScreen(theStartScreen);
                        _ucSystemStartScreen.Dock = DockStyle.Fill;
                        DataTable RecentList = _MenuSystemDAO.getRecentList(TUserInfo.UserID);
                        _ucSystemStartScreen.loadRecentList(RecentList);
                        _ucSystemStartScreen.CanClose = true;
                        _ucSystemStartScreen.UserCurrentInfo.SetUserInfo(TUserInfo.UserID);
                        _ucSystemStartScreen.UserCurrentInfo.IsLogedOn = TUserInfo.IsLogedOn;
                        _ucSystemStartScreen.UserCurrentInfo.Connection = TUserInfo.Connection;
                        _ucSystemStartScreen.theSystemDBTag = Plugin.getSystemDBTag();

                        addStartScreen(_ucSystemStartScreen);

                    }
                    break;
                }
            }
        }

public ucBaseUserControl getStartScreen()
{
    ucHRStartScreen _ucHRStartScreen = new ucHRStartScreen();
    return _ucHRStartScreen;
   // return null;
}

ucHRStartScreen

<lectures>
   <lecture>
       <speakername>
       </speakername>      

       <subject>
       </subject>
    
       <date>
       </date>

       <time>
       </time>

       <location>
       </location>
   </lecture>
</lectures>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;

namespace PhoneAppSolution
{
    public partial class MainPage : PhoneApplicationPage
    {
        int count = 0;
        //remember what the user typed for future actuvations or launches:
        Setting<int> savedCount = new Setting<int>("SavedCount", 0);

        // Constructor
        public MainPage()
        {
            InitializeComponent();
        }

        //Handle a tap anywhere on the page (other than button)
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
        {
            base.OnMouseLeftButtonDown(e);
            this.count++;
            this.CountTextBlock.Text = this.count.ToString("NO");
        }
            //Handle a tap on the button
            void ResetButton_Click(object sender, RoutedEventArgs e)
            {
                this.count = 0;
                this.CountTextBlock.Text = this.count.ToString("NO");
            }
        protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
{
     base.OnNavigatedFrom(e);
            // Persist state when leaving for any reason (Deactivated or Closing)
            this.savedCount.Value = this.count;
        }
        protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
     base.OnNavigatedTo(e);
            // restore persisted value state:
            this.count = this.savedCount.Value;
            this.CountTextBlock.Text = this.count.ToString("NO");

}
}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.IsolatedStorage;

namespace PhoneAppSolution
{
    public class Setting<num>
    {
        string name;
        num value;
        num defaultValue;
        bool hasValue;
        public Setting(string name, num defaultValue)
        {
            this.name = name;
            this.defaultValue = defaultValue;
        }

        public num Value
        {
            get
            {
                //check for cached value
                if(!this.hasValue)
                {
                    // try to get value from isolated storage
                    if (!IsolatedStorageSettings.ApplicationSettings.TryGetValue(
                        this.name, out this.value))
                    {
                        //if this hasn't yet set
                        this.value = this.defaultValue;
                        IsolatedStorageSettings.ApplicationSettings[this.name] = this.value;
                    }
                    this.hasValue = true;
                }
                return this.value;
            }

            set
            {
                //save the value to isolated storage
                IsolatedStorageSettings.ApplicationSettings[this.name] = value;
                this.value = value;
                this.hasValue = true;

            }
        }

        public num DefaultValue
        {
            get { return this.DefaultValue; }
        }

        // "clear" cached value:
        public void ForceRefresh()
        {
            this.hasValue = false;
        }
    }
}

<phone:PhoneApplicationPage
    x:Class="PhoneAppSolution.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeHuge}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="PortraitOrLandscape" Orientation="Portrait"
    shell:SystemTray.IsVisible="True">

    <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot" >
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel x:Name="TitlePanel" Margin="12,17,0,28" Grid.ColumnSpan="2">
            <TextBlock x:Name="ApplicationTitle" Text="Tally" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="tap to count" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
        </StackPanel>

        <!--Row 1 text block containg count-->
            <TextBlock x:Name="CountTextBlock" Grid.Row="1" TextAlignment="Center" Text="0" Grid.ColumnSpan="2" />
        <!-- Row 2 : the reset button-->
            <Button x:Name="ResetButton" Grid.Row="1" Click="ResetButton_Click" Content="reset" Margin="21,343,1,143" />
    </Grid>

</phone:PhoneApplicationPage>