Databinding for RadCycleHubTile

2 posts, 0 answers
  1. Ashok
    Ashok avatar
    1 posts
    Member since:
    May 2013

    Posted 19 Oct 2013 Link to this post

    Hi I'm doing simple phone contact binding to RadCycleHubTile in a MVVM way. But is throwing exception as follows -

       at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
       at System.ThrowHelper.ThrowArgumentOutOfRangeException()
       at System.Collections.Generic.List`1.get_Item(Int32 index)
       at System.Collections.ObjectModel.Collection`1.System.Collections.IList.get_Item(Int32 index)
       at Telerik.Windows.Controls.EnumerableExtensions.ElementAt(IEnumerable enumerable, Int32 index)
       at Telerik.Windows.Controls.RadCycleHubTile.GetRandomItem()
       at Telerik.Windows.Controls.RadCycleHubTile.GetItem(Boolean random)
       at Telerik.Windows.Controls.RadCycleHubTile.OnFullyInitialized()
       at Telerik.Windows.Controls.HubTileBase.OnLoaded(Object sender, RoutedEventArgs e)
       at MS.Internal.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
       at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)

    Below are my binding details
    Namespace -  xmlns:tp="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Primitives"

     <tp:RadCycleHubTile ItemsSource="{Binding Items}" x:Name="tileAll" Title="All" Margin="6"  Background="Red"
                    Width="450" IsFrozen="True"
                    Height="150" >
                    <tp:RadCycleHubTile.ItemTemplate>
                        <DataTemplate>
                            <Grid Margin="0, 12, 0, 0">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="140"/>
                                </Grid.ColumnDefinitions>
                              
                                <TextBlock Text="{Binding DisplayName}" Style="{StaticResource PhoneTextLargeStyle}"
                                               TextWrapping="Wrap"
                                               Margin="12, 0, 0, 0"
                                               Grid.Column="1"
                                               VerticalAlignment="Center"
                                               HorizontalAlignment="Left"/>
                            </Grid>
                        </DataTemplate>
                    </tp:RadCycleHubTile.ItemTemplate>
                </tp:RadCycleHubTile>

    I have singletone MainViewModel

      public class MainViewModel : INotifyPropertyChanged
        {
            public MainViewModel()
            {
                Items = new ObservableCollection<Contact>();
            }

            private ObservableCollection<Contact> _items = new ObservableCollection<Contact>();
       
            public ObservableCollection<Contact> Items
            {
                get
                {
                    return _items;
                }
                set
                {
                    if (value != _items)
                    {
                        _items = value;
                        NotifyPropertyChanged("Items");
                    }
                }
            }

            public bool IsDataLoaded
            {
                get;
                private set;
            }
        
            public void LoadData()
            {
                Contacts c = new Contacts();

                c.SearchCompleted += (s, e) =>
                {
                    Items = new ObservableCollection<Contact>(e.Results);
                };
                c.SearchAsync(string.Empty, FilterKind.None, null);

                this.IsDataLoaded = true;
            }

            public event PropertyChangedEventHandler PropertyChanged;
            private void NotifyPropertyChanged(String propertyName)
            {
                PropertyChangedEventHandler handler = PropertyChanged;
                if (null != handler)
                {
                    handler(this, new PropertyChangedEventArgs(propertyName));
                }
            }
        }

    How should I handle this?
  2. Kiril Stanoev
    Admin
    Kiril Stanoev avatar
    1511 posts

    Posted 23 Oct 2013 Link to this post

    Hello Ashok,

    Thank you for contacting us. I was unable to reproduce the issue. Could you please take a look at the attached files and let me know if I'm missing anything. I'd be glad to assist you further.  

    Regards,
    Kiril Stanoev
    Telerik
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