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I created a class structure like this:

class ParentClass


      public Context Context {get; set;}


class ChildClass : ParentClass


      public new ClientContext Context {get; set;}


And then set my itemssource to a List<ChildClass>(). When I set the itemssource it throws this exception:

System.ArgumentException: 'An item with the same key has already been added. Key: Context'

The stack trace implies that it's harvesting all the properties and adding them to a collection and this is causing an issue because it finds both "Context" properties and tries to add each as a key:

   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)

   at Syncfusion.Data.PropertyInfoCollection.<.ctor>b__3_0(PropertyInfo p)

   at Syncfusion.Data.Extensions.FunctionalExtensions.ForEach[T](IEnumerable`1 items, Action`1 action)

   at Syncfusion.Data.PropertyInfoCollection..ctor(Type type)

   at Syncfusion.Data.CollectionViewAdv.SetItemProperties(IEnumerable dataSource)

   at Syncfusion.Data.CollectionViewAdv.InitiateCollectionViewAdv()

   at Syncfusion.Data.CollectionViewAdv..ctor(IEnumerable _source, Type sourceType)

   at Syncfusion.UI.Xaml.Grid.GridQueryableCollectionViewWrapper..ctor(IEnumerable source, SfDataGrid grid)

   at Syncfusion.UI.Xaml.Grid.SfDataGrid.CreateCollectionViewAdv(IEnumerable source, SfDataGrid dataGrid)

   at Syncfusion.UI.Xaml.Grid.SfDataGrid.CreateCollectionView(Object itemsSource)

   at Syncfusion.UI.Xaml.Grid.SfDataGrid.SetSourceList(Object itemsSource)

   at Syncfusion.UI.Xaml.Grid.SfDataGrid.OnItemsSourceChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)

   at Syncfusion.UI.Xaml.Grid.GridPropertyMetadata.OnDependencyPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

   at Syncfusion.UI.Xaml.Grid.GridPropertyMetadata.OnInternalDependencyPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

   at Windows.UI.Xaml.DependencyObject.SetValue(DependencyProperty dp, Object value)

   at Syncfusion.UI.Xaml.Grid.SfDataGrid.set_ItemsSource(Object value)

   at General.Common.DataGrid.DataGridControl.SetItemsSource()