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QuestionWPF C# - Get Images Off Windows Phone 7 Pin
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QuestionCharging problem on Sansung Omnia i900. Pin
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Questionhow to integrate web application to Mobile application Pin
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QuestionConnect commercial printer with android Pin
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QuestionWindows Mobile Phone question Pin
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QuestionProblem binding to ItemSource in WP7 Pin
nitin_ion1-Apr-12 22:48
nitin_ion1-Apr-12 22:48 
I am using MVVM pattern and I am trying to bind a
public ObservableCollection<Model.Friends> Friends
property to LongListSelector

XML
<toolkit:LongListSelector
                ItemsSource="{Binding Friends}"
                GroupHeaderTemplate="{StaticResource movieGroupHeader}"
                ListHeaderTemplate="{StaticResource movieListHeader}">
                <toolkit:LongListSelector.ItemTemplate>
                    <DataTemplate>
                        <Grid Margin="12,8,0,8">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>

                            <StackPanel Grid.Column="1" VerticalAlignment="Top">
                                <TextBlock Text="{Binding MyBoxName}" Style="{StaticResource PhoneTextLargeStyle}" FontFamily="{StaticResource PhoneFontFamilySemiBold}" Margin="12,-12,12,6"/>
                                <TextBlock Text="{Binding MyBoxID}" Style="{StaticResource PhoneTextNormalStyle}" TextWrapping="Wrap" FontFamily="{StaticResource PhoneFontFamilySemiBold}"/>
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="Status:" Style="{StaticResource PhoneTextSmallStyle}"/>
                                    <TextBlock Text="{Binding Status}" Style="{StaticResource PhoneTextSmallStyle}" FontFamily="{StaticResource PhoneFontFamilySemiBold}"/>
                                </StackPanel>

                            </StackPanel>
                        </Grid>
                    </DataTemplate>
                </toolkit:LongListSelector.ItemTemplate>
            </toolkit:LongListSelector>


Now issues is when i try to add
C#
_friends.Add(new Model.Friends
            {
                MyBoxID = e.RosterItem.Jid,
                MyBoxName = e.RosterItem.Name,
                Status = Matrix.Xmpp.PresenceType.unavailable
            });

it gives InvalidCastException so i tried List instead of ObservableCollection. Now i don't get exception but nothing is displayed in LLS. How can i bind My ObservableCollection property to LLS with Grouping.
AnswerRe: Problem binding to ItemSource in WP7 Pin
yukie_all2-Apr-12 15:40
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AnswerRe: Problem binding to ItemSource in WP7 Pin
nitin_ion2-Apr-12 22:40
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Questionmillennial ads is not working in windows phone 7 XNA Games Pin
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QuestionGetting the Signal Strength of wifi access points in Android Pin
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QuestionWhiteboard for Windows Phone 7 Pin
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