Its back up. So you can check that out if you want. But the exampl linked is really more for if you want to create the series based on a template in Xaml. If you are already creating the series collection in your View Model have you tried just binding it to the chart?

I.E if the property holding the SeriesCollection on your DataContext is called Series. Have you tried

<XamWebChart Series="{Binding Series} ...

-Graham

its xamDataChart,

 this.grdXmlData.ItemsSource = markets;  //this for the grid and its working great

            CategoryXAxis xAxis = new CategoryXAxis();
            xAxis.ItemsSource = markets;
            xAxis.Label = "{Date}";
            NumericYAxis numYAxis = new NumericYAxis();

           this.DataChart.Axes.Add(xAxis);
          this.DataChart.Axes.Add(numYAxis);

   StackedColumnSeries stackedColumnSeries = new StackedColumnSeries();        
   stackedColumnSeries.XAxis = xAxis;
   stackedColumnSeries.YAxis = numYAxis;
    stackedColumnSeries.ItemsSource = markets;

 for (int nbrand = 0; nbrand < brandcount; nbrand++)
 {

             StackedFragmentSeries stackedFragment = new StackedFragmentSeries();
                // creating the brands' graphs and assigning the values
                stackedFragment.Name = "g" + nbrand;
                stackedFragment.Title = cbrand;
               // stackedFragment.SetBinding(StackedFragmentSeries.ItemsSourceProperty, new Binding("Item.value" + nbrand));
                //stackedFragment.ItemsSource = markets;
                stackedFragment.ValueMemberPath = "value" + nbrand;
                // stackedFragment.LegendItemTemplate = customLegendItemTemplate;
                StackPanel sp = new StackPanel();
                TextBlock tb1 = new TextBlock();
                TextBlock tb2 = new TextBlock();
                sp.Orientation = System.Windows.Controls.Orientation.Vertical;
                sp.Children.Add(tb1);
                sp.Children.Add(tb2);
                tb1.SetBinding(TextBlock.TextProperty, new Binding("Series.Title"));
                tb2.SetBinding(TextBlock.TextProperty, new Binding("Item.value" + nbrand));
                stackedFragment.ToolTip = sp;
                // add the brands' graphs to the chart         
                stackedColumnSeries.Series.Add(stackedFragment);

}

     this.DataChart.Series.Add(stackedColumnSeries);

//here is the class

  Markets markets = new Markets();

 public class Markets : ObservableCollection<Market>
    {
        public Markets()
        {

//data retrieval from xml

 field2 = "value" + i;

  Market.AddProperty(field2, typeof(double)); 

 Market market1 = new Market();

  market1.SetPropertyValue(field2, msval);

  market1.SetPropertyValue("Date",  String.Format("{0:y}", curDate).ToString());
               
 Add(market1);

}

 public class Market : ICustomTypeProvider
    {
      //  public String Date { get; set; }

        CustomTypeHelper<Market> helper = new CustomTypeHelper<Market>();


        public static void AddProperty(String name)
        {
            CustomTypeHelper<Market>.AddProperty(name);
        }

        public static void AddProperty(String name, Type propertyType)
        {
            CustomTypeHelper<Market>.AddProperty(name, propertyType);
        }

        public static void AddProperty(String name, Type propertyType, List<Attribute> attributes)
        {
            CustomTypeHelper<Market>.AddProperty(name, propertyType, attributes);
        }


        public void SetPropertyValue(string propertyName, object value)
        {
            helper.SetPropertyValue(propertyName, value);
        }

        public object GetPropertyValue(string propertyName)
        {
            return helper.GetPropertyValue(propertyName);
        }

        public PropertyInfo[] GetProperties()
        {
            return helper.GetProperties();
        }

        public Type GetCustomType()
        {
            return helper.GetCustomType();
        }
    }

//

Hi,

We don't have direct support for that interface yet, as its Silverlight 5. The chart doesn't directly use the Silverlight binding system for fetching column values because its too slow for volume scenarios.

I'm uncertain where that interface hooks into Silverlight, not having read into it yet. If it hooks into the binding system, then it wont work for describing a type to the chart yet, but if it hooks in to the reflection subsystem at a lower level, then it has a chance of working.

I'll try to run an experiment, but I can tell you that it will work if you use nominal types instead of dynamic types such as you are currently. You can also generate nominal types on the fly if the columns you are dealing with are completely dynamic. I'll try to find some samples I've done of this before.

-Graham

My experimentation is indicating that ICustomTypeProvider works at the level of the bindings, and since the chart does lower level data access. for performance reasons. it evades this.
You can bind the chart against a collection of such objects though, by generating types dynamically that have the required properties. The proxies can even be made to work with INotifyPropertyChanged.
Please see the below sample:

<Grid x:Name="LayoutRoot" Background="White">
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <igChart:XamDataChart x:Name="theChart">
            <igChart:XamDataChart.Axes>
                <igChart:NumericYAxis x:Name="yAxis" />
                <igChart:CategoryXAxis 
                    x:Name="xAxis"
                    ItemsSource="{Binding}"
                    Label="{}{Label}"/>
            </igChart:XamDataChart.Axes>
            <igChart:XamDataChart.Series>
                
            </igChart:XamDataChart.Series>
        </igChart:XamDataChart>
        
        <Button Grid.Row="1" Content="Click" Click="Button_Click" />
    </Grid>

And code behind:

public partial class MainPage : UserControl
    {
        private ObservableCollection<Market> _data = null;

        public MainPage()
        {
            InitializeComponent();

            _data = CreateTestData();

            var view = new SolidifiedView();
            view.Inner = _data;

            this.DataContext = view;

            var series = new StackedColumnSeries();
            series.ItemsSource = view;
            series.XAxis = (CategoryXAxis)theChart.Axes[1];
            series.YAxis = (NumericYAxis)theChart.Axes[0];

            series.Series.Add(new StackedFragmentSeries() { Title = "Value1", ValueMemberPath = "Value1" });
            series.Series.Add(new StackedFragmentSeries() { Title = "Value2", ValueMemberPath = "Value2" });
            series.Series.Add(new StackedFragmentSeries() { Title = "Value3", ValueMemberPath = "Value3" });

            theChart.Series.Add(series);
        }

        private ObservableCollection<Market> CreateTestData()
        {
            var ret = new ObservableCollection<Market>();

            Market.AddProperty("Label", typeof(string));
            Market.AddProperty("Value1", typeof(double));
            Market.AddProperty("Value2", typeof(double));
            Market.AddProperty("Value3", typeof(double));

            Market m1 = new Market();
            m1.SetPropertyValue("Label", "A");
            m1.SetPropertyValue("Value1", 1d);
            m1.SetPropertyValue("Value2", 2d);
            m1.SetPropertyValue("Value3", 1d);
            ret.Add(m1);

            Market m2 = new Market();
            m2.SetPropertyValue("Label", "B");
            m2.SetPropertyValue("Value1", 2d);
            m2.SetPropertyValue("Value2", 1d);
            m2.SetPropertyValue("Value3", 2d);
            ret.Add(m2);

            Market m3 = new Market();
            m3.SetPropertyValue("Label", "C");
            m3.SetPropertyValue("Value1", 3d);
            m3.SetPropertyValue("Value2", 1d);
            m3.SetPropertyValue("Value3", 2d);
            ret.Add(m3);

            var p1 = m1.GetType().GetProperty("Value1");

            return ret; 
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            _data[0].SetPropertyValue("Value1", 2d);
        }
    }


    public class SolidifiedView
       : ObservableCollection<object>
    {
        private IList _inner;
        public IList Inner
        {
            get { return _inner; }
            set
            {
                IList oldValue = _inner;
                _inner = value;
                OnInnerChanged(oldValue, _inner);
            }
        }

        private void OnInnerChanged(
            IList oldValue,
            IList newValue)
        {
            if (oldValue != null &&
                oldValue is INotifyCollectionChanged)
            {
                ((INotifyCollectionChanged)oldValue).CollectionChanged -=
                    DataSolidifier_CollectionChanged;
            }
            if (newValue != null &&
                newValue is INotifyCollectionChanged)
            {
                ((INotifyCollectionChanged)newValue).CollectionChanged +=
                    DataSolidifier_CollectionChanged;
            }
            ResetItems();
        }

        private void ResetItems()
        {
            this.Clear();
            if (Inner == null)
            {
                return;
            }
            foreach (var item in Inner)
            {
                var newItem = Proxy(item);
                Add(newItem);
            }
        }

        protected override void ClearItems()
        {
            foreach (var item in this)
            {
                if (item is ProxyBase)
                {
                    ((ProxyBase)item)
                        .Detach();
                }
            }
        }

        void DataSolidifier_CollectionChanged(
            object sender,
            NotifyCollectionChangedEventArgs e)
        {
            switch (e.Action)
            {
                case NotifyCollectionChangedAction.Add:
                    foreach (var item in e.NewItems)
                    {
                        var newItem = Proxy(item);
                        this.Add(newItem);
                    }
                    break;
                case NotifyCollectionChangedAction.Remove:
                    foreach (var item in e.OldItems)
                    {
                        var toRemove = this[e.OldStartingIndex];
                        if (toRemove is ProxyBase)
                        {
                            ((ProxyBase)toRemove).Detach();
                        }
                        RemoveAt(e.OldStartingIndex);
                    }
                    break;
                case NotifyCollectionChangedAction.Replace:
                    foreach (var item in e.OldItems)
                    {
                        var toRemove = this[e.OldStartingIndex];
                        if (toRemove is ProxyBase)
                        {
                            ((ProxyBase)toRemove).Detach();
                        }
                        RemoveAt(e.OldStartingIndex);
                    }
                    int index1 = e.NewStartingIndex;
                    foreach (var item in e.NewItems)
                    {
                        var newItem = Proxy(item);
                        this.Insert(index1++, newItem);
                    }
                    break;
                case NotifyCollectionChangedAction.Reset:
                    ResetItems();
                    break;
            }
        }

        private object Proxy(object item)
        {
            if (item is ICustomTypeProvider)
            {
                var list = new PropertyInfoList(
                    item as ICustomTypeProvider);
                var proxy = ProxyCreator.GetProxyInstance(
                    list,
                    item as ICustomTypeProvider);
                return proxy;
            }
            else
            {
                return item;
            }
        }
    }

    public class PropertyInfoItem
    {
        public string PropertyName { get; set; }
        public Type PropertyType { get; set; }

        public override string ToString()
        {
            return "{" +
                PropertyName +
                "}:[" +
                PropertyType.FullName +
                "]";
        }
    }

    public class PropertyInfoList
        : List<PropertyInfoItem>
    {
        public PropertyInfoList(ICustomTypeProvider dyn)
        {
            foreach (var member in
                dyn.GetCustomType().GetProperties())
            {
                Add(new PropertyInfoItem()
                {
                    PropertyName = member.Name,
                    PropertyType = member.PropertyType
                });
            }
        }

        public override string ToString()
        {
            var sb = new StringBuilder();
            var props = from item in this
                        orderby item.PropertyName
                        select item;
            foreach (var prop in props)
            {
                sb.Append(prop.ToString());
            }
            return sb.ToString();
        }
    }

    public abstract class ProxyBase
        : INotifyPropertyChanged
    {
        private ICustomTypeProvider _inner;

        public ProxyBase(ICustomTypeProvider inner)
        {
            _inner = inner;
            if (_inner is INotifyPropertyChanged)
            {
                ((INotifyPropertyChanged)_inner).PropertyChanged +=
                    ProxyBase_PropertyChanged;
            }
        }

        public void Detach()
        {
            if (_inner == null)
            {
                return;
            }
            if (_inner is INotifyPropertyChanged)
            {
                ((INotifyPropertyChanged)_inner).PropertyChanged -=
                    ProxyBase_PropertyChanged;
            }
            _inner = null;
        }

        protected Dictionary<string, bool> _existingProperties =
            new Dictionary<string, bool>();

        void ProxyBase_PropertyChanged(
            object sender,
            PropertyChangedEventArgs e)
        {
            RaisePropertyChanged(e.PropertyName);
        }

        public event PropertyChangedEventHandler PropertyChanged;

        private void RaisePropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(
                    this,
                    new PropertyChangedEventArgs(
                        propertyName));
            }
        }

        private Dictionary<string, CallSite<Func<CallSite, object, object>>>
            _sites = new Dictionary<string, CallSite<Func<CallSite, object, object>>>();

        public object GetPropertyByName(string propertyName)
        {
            var info = _inner.GetCustomType().GetProperty(propertyName);
            return info.GetValue(_inner, null);
        }
    }

    public static class ProxyCreator
    {
        private static Dictionary<
            string,
            Func<ICustomTypeProvider, object>> _cachedTypes =
            new Dictionary<
                string,
                Func<ICustomTypeProvider, object>>();
        private static object _lock = new object();

        public static object GetProxyInstance(
            PropertyInfoList list,
            ICustomTypeProvider toWrap)
        {
            var type = GetProxyType(list);
            return type(toWrap);
        }

        private static Func<ICustomTypeProvider, object>
            GetProxyType(PropertyInfoList list)
        {
            string key = list.ToString();
            Func<ICustomTypeProvider, object> output = null;
            lock (_lock)
            {
                if (_cachedTypes.TryGetValue(key, out output))
                {
                    return output;
                }
            }
            output = CreateProxyType(list);
            lock (_lock)
            {
                if (!_cachedTypes.ContainsKey(key))
                {
                    _cachedTypes.Add(key, output);
                }
            }
            return output;
        }

        private static AssemblyBuilder _ab = null;
        private static ModuleBuilder _mb = null;

        private static Func<ICustomTypeProvider, object>
            CreateProxyType(PropertyInfoList list)
        {
            lock (_lock)
            {
                if (_ab == null)
                {
                    AssemblyName assmName =
                        new AssemblyName("DynamicAssembly");
                    _ab = AppDomain.CurrentDomain.DefineDynamicAssembly(
                        assmName,
                        AssemblyBuilderAccess.Run);
                    _mb = _ab.DefineDynamicModule(assmName.Name);
                    _getPropertyValue = typeof(ProxyBase).GetMethod(
                        "GetPropertyByName");
                    _baseCons = typeof(ProxyBase).GetConstructor(
                        new Type[] { typeof(ICustomTypeProvider) });
                }

                var tb = _mb.DefineType(
                    Guid.NewGuid().ToString() +
                    "__proxy",
                    TypeAttributes.Public | TypeAttributes.Class,
                    typeof(ProxyBase));

                foreach (var prop in list)
                {
                    CreateProperty(tb, prop);
                }

                ConstructorBuilder cons =
                    tb.DefineConstructor(
                    MethodAttributes.Public,
                    CallingConventions.Standard,
                    new Type[] { typeof(ICustomTypeProvider) }
                    );
                ILGenerator ilGen = cons.GetILGenerator();
                ilGen.Emit(OpCodes.Ldarg_0);
                ilGen.Emit(OpCodes.Ldarg_1);
                ilGen.Emit(OpCodes.Call,
                    _baseCons);
                ilGen.Emit(OpCodes.Ret);

                Type type = tb.CreateType();

                ConstructorInfo typeCons =
                    type.GetConstructor(
                    new Type[]    
                    {    
                        typeof (ICustomTypeProvider)   
                    });

                ParameterExpression param =
                    System.Linq.Expressions.Expression.Parameter(
                    typeof(ICustomTypeProvider));
                Func<ICustomTypeProvider, object> res =
                    System.Linq.Expressions.Expression.Lambda<Func<ICustomTypeProvider, object>>(
                    System.Linq.Expressions.Expression.New(typeCons, param), param).Compile();

                return res;
            }
        }

        private static MethodInfo _getPropertyValue;
        private static ConstructorInfo _baseCons;

        private static void CreateProperty(TypeBuilder tb, PropertyInfoItem prop)
        {
            PropertyBuilder pb = tb.DefineProperty(
                prop.PropertyName, PropertyAttributes.None,
                prop.PropertyType, null);

            MethodBuilder mb = tb.DefineMethod(
            "get_" + prop.PropertyName,
            MethodAttributes.Public |
            MethodAttributes.HideBySig,
            prop.PropertyType, null);

            ILGenerator ilGen = mb.GetILGenerator();
            ilGen.Emit(OpCodes.Ldarg_0);
            ilGen.Emit(OpCodes.Ldstr, prop.PropertyName);
            ilGen.Emit(OpCodes.Call, _getPropertyValue);
            if (prop.PropertyType.IsValueType)
            {
                ilGen.Emit(OpCodes.Unbox, prop.PropertyType);
                ilGen.Emit(OpCodes.Ldobj, prop.PropertyType);
            }
            else
            {
                ilGen.Emit(OpCodes.Castclass, prop.PropertyType);
            }
            ilGen.Emit(OpCodes.Ret);

            pb.SetGetMethod(mb);
        }
    }  



    public class Market : ICustomTypeProvider, INotifyPropertyChanged
    {
        //  public String Date { get; set; }

        CustomTypeHelper<Market> _helper = null;
        public Market()
        {
            _helper = new CustomTypeHelper<Market>();
            _helper.PropertyChanged += new PropertyChangedEventHandler(_helper_PropertyChanged);
        }

        void _helper_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(e.PropertyName));
            }
        }

        public static void AddProperty(String name, Type propertyType)
        {
            CustomTypeHelper<Market>.AddProperty(name, propertyType);
        }

        public void SetPropertyValue(string propertyName, object value)
        {
            _helper.SetPropertyValue(propertyName, value);
        }

        public object GetPropertyValue(string propertyName)
        {
            return _helper.GetPropertyValue(propertyName);
        }

        public PropertyInfo[] GetProperties()
        {
            return _helper.GetProperties();
        }

        public Type GetCustomType()
        {
            return _helper.GetCustomType();
        }

        public event PropertyChangedEventHandler PropertyChanged;
    }

Note, I modified your Market type to raise PropertyChanged if the helper raises it.

Hope this helps!
-Graham

Hi Graham,

I am facing the same issue with xamGrid - Silverlight. From the description you gave in the post above, it make sense that ICustomTypeProvider works at silverlight binding level but xamGrid works at a level lower than that.

The workaround you suggested of creating runtime types works fine but causes performance overhead. I would ideally like to see ICustomTypeProvider or DynamicObjects binding seamlessly with Infragistics components.

Is there any plan to support this in upcoming Infragistics releases ? I have tried Infragistics 12.1 as well, but its still not implemented.