Question

I have tried for several hours and searching on the net for examples on how to pull multiple elements with the same name however different attributes and binding those to my XAML in my app for wp7,

the easiest way for me to explain is to simply show you,

heres what I have so far

       public class Match
    {
        public string HomeTeam { get; set; }
        public string AwayTeam { get; set; }
        public string HomeScore { get; set; }
        public string AwayScore { get; set; }
        public string GoalsPlayer { get; set; }
        public string goal { get; set; }
        public string GoalsTime { get; set; }
        public string DismissalsPlayer { get; set; }
        public string DismissalsTime { get; set; }
        public string BookingPlayer { get; set; }
        public string BookingTime { get; set; }
        public string GameTime { get; set; }
    }

 void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
    {
        XElement element = XElement.Parse(e.Result);
        try
        {
            listBox2.ItemsSource = from item in element.Descendants("competition")
                                   from match in item.Elements("match").Where(arg => arg.Attribute("awayTeam").Value == team | arg.Attribute("homeTeam").Value == team)
                                   select new Match
                                   {
                                       HomeTeam = (string)match.Attribute("homeTeam"),
                                       AwayTeam = (string)match.Attribute("awayTeam"),
                                       HomeScore = (string)match.Attribute("homeTeamScore"),
                                       AwayScore = (string)match.Attribute("awayTeamScore"),
                                       GoalsPlayer = (string)match.Attribute("playerName"),
                                       GoalsTime = (string)match.Attribute("time"),
                                   };
        }
        catch (Exception ex)
        {
             Debug.WriteLine(ex.StackTrace);
        }

here is my XAML

<ListBox Name="listBox2" Grid.Row="0">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel Name="teams" Orientation="Vertical">
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Margin="0,10,0,0" Foreground="White" HorizontalAlignment="Left" Text="{Binding HomeTeam}"/>
                                    <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding HomeScore}" TextWrapping="Wrap" FontSize="20" />
                                    <TextBlock Margin="0,10,0,0" Foreground="White" HorizontalAlignment="Left" Text="{Binding AwayTeam}"/>
                                    <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding AwayScore}" TextWrapping="Wrap" FontSize="20" />
                                </StackPanel>
                                <StackPanel Name="scores" Orientation="Horizontal">
                                    <TextBlock Margin="0,10,0,0" Foreground="White" Text="{Binding GoalsPlayer}" TextWrapping="Wrap" FontSize="20" />
                                    <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding GoalsTime}" TextWrapping="Wrap" FontSize="20" />
                                </StackPanel>
                                <StackPanel Name="dismissals">
                                    <TextBlock Foreground="White" Text="{Binding DismissalsPlayer}" TextWrapping="Wrap" FontSize="20"/>
                                    <TextBlock Foreground="White" Text="{Binding DismissalsTime}" TextWrapping="Wrap" FontSize="20"/>
                                </StackPanel>
                            </StackPanel>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

here is my XML

<match homeTeam="Arsenal" awayTeam="Liverpool" homeTeamScore="0" awayTeamScore="2">
<goal time="77:13" playerName="Aaron Ramsey" />
<goal time="89:57" playerName="Luis Suarez"/>
<dismissal time="69:59" playerName="Emmanuel Frimpong"/>
</match>

I understand that I will only get one entry on my Page for Goals, which would be the first goal element in my XML

how can I go about that and implement every

<goal ...>
<goal ...>

into my Datatemplate that currently only shows the first entry, another potential problem is I cannot guarantee how many goals there will be so I am a really unsure on how to go about it entirely

thanks

John

Answer 1

Should playerName even resolve on your match? Because that’s where you are resolving it in your XML query.

Regardless, what you are looking for here is a sub-object that can be held in a list property of the Match object:

listBox2.ItemsSource = from item in element.Descendants("competition")
                       from match in item.Elements("match")
                           .Where(arg => arg.Attribute("awayTeam").Value == team || 
                                         arg.Attribute("homeTeam").Value == team)
                       select new Match
                       {
                           HomeTeam = (string)match.Attribute("homeTeam"),
                           AwayTeam = (string)match.Attribute("awayTeam"),
                           HomeScore = (string)match.Attribute("homeTeamScore"),
                           AwayScore = (string)match.Attribute("awayTeamScore"),
                           Goals = match.Elements("goals").Select(ev => new MatchEvent
                           {
                               Player = (string)ev.Attribute("playerName"),
                               Time = (string)ev.Attribute("time")
                           }).ToList(),
                           Dismissals = match.Elements("dismissals").Select(ev => new MatchEvent
                           {
                               Player = (string)ev.Attribute("playerName"),
                               Time = (string)ev.Attribute("time")
                           }).ToList(),
                       };

And the updated XAML:

<ListBox Name="listBox2" Grid.Row="0">
    <ListBox.ItemTemplate>
        <DataTemplate>
             <StackPanel Name="teams" Orientation="Vertical">
             <StackPanel Orientation="Horizontal">
                  <TextBlock Margin="0,10,0,0" Foreground="White" HorizontalAlignment="Left" Text="{Binding HomeTeam}"/>
                  <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding HomeScore}" TextWrapping="Wrap" FontSize="20" />
                  <TextBlock Margin="0,10,0,0" Foreground="White" HorizontalAlignment="Left" Text="{Binding AwayTeam}"/>
                  <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding AwayScore}" TextWrapping="Wrap" FontSize="20" />
              </StackPanel>
              <ItemsControl ItemsSource="{Binding Goals}">
                  <ItemsControl.ItemTemplate>
                      <DataTemplate>
                          <StackPanel Name="scores" Orientation="Horizontal">
                              <TextBlock Margin="0,10,0,0" Foreground="White" Text="{Binding Player}" TextWrapping="Wrap" FontSize="20" />
                              <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding Time}" TextWrapping="Wrap" FontSize="20" />
                          </StackPanel>
                      </DataTemplate>
                  </ItemsControl.ItemTemplate>
              </ItemsControl>

              <ItemsControl ItemsSource="{Binding Dismissals}">
                  <ItemsControl.ItemTemplate>
                      <DataTemplate>
                          <StackPanel Name="scores" Orientation="Horizontal">
                              <TextBlock Margin="0,10,0,0" Foreground="White" Text="{Binding Player}" TextWrapping="Wrap" FontSize="20" />
                              <TextBlock Margin="10,10,30,0" Foreground="White" Text="{Binding Time}" TextWrapping="Wrap" FontSize="20" />
                          </StackPanel>
                      </DataTemplate>
                  </ItemsControl.ItemTemplate>
              </ItemsControl>
          </StackPanel>
      </DataTemplate>
  </ListBox.ItemTemplate>
</ListBox>