Hi Guys
I seem to be having troubles with the filtering function.
I have a very simple grid, I create manually its columns, and bind them programatically to a IList<MyClass> object retreive from WCF.
So far so good.
I've added a function on the filtered event, so that I can perform some logic related to the ChartAggregateGrouping.
If the member is a string, no issue, but if it is an int or a double value, the application turns blank
Here's the stacktrace
Erreur : Unhandled Error in Silverlight Application Impossible d'effectuer un cast de l'objet de type 'System.Int32' en type 'System.String'. à lambda_method(ExecutionScope , GridBO )
à System.Linq.Enumerable.WhereListIterator`1.MoveNext()
à System.Linq.Buffer`1..ctor(IEnumerable`1 source)
à System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext()
à Telerik.Windows.Data.QueryableCollectionView.PopulateInternalList(IQueryable view)
à Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
à Telerik.Windows.Data.QueryableCollectionView.EnsureInternalList()
à Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
à Telerik.Windows.Data.QueryableCollectionView.get_IsEmpty()
à Telerik.Windows.Controls.GridView.BaseItemsControl.OnItemCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.DataItemCollection.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
à Telerik.Windows.Data.QueryableCollectionView.RefreshAndRaiseCollectionChanged(NotifyCollectionChangedEventArgs args)
à Telerik.Windows.Data.QueryableCollectionView.Refresh()
à Telerik.Windows.Data.QueryableCollectionView.EndDefer()
à Telerik.Windows.Data.QueryableCollectionView.DeferHelper.Dispose()
à Telerik.Windows.Data.DataItemCollection.OnGroupDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
à Telerik.Windows.Data.RadObservableCollection`1.RemoveItem(Int32 index)
à Telerik.Windows.Data.ObservableItemCollection`1.RemoveItem(Int32 index)
à System.Collections.ObjectModel.Collection`1.Remove(T item)
à Telerik.Windows.Controls.GridView.GridViewDataControl.Ungroup(String member)
à Telerik.Windows.Controls.GridView.GridViewDataControl.<>c__DisplayClass2d.<GroupingRequested>b__2c()
à Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
à Telerik.Windows.Controls.GridView.GridViewDataControl.GroupingRequested(Object origin, GroupingRequestedEventArgs e)
Fichier Source : http://localhost:49232/Default.aspx
Ligne : 0
And there's the class definition :
Apparently, there's an Int to string cast error somewhere, but not in my own code, since the filtered event isn't being launched at all.
I seem to be having troubles with the filtering function.
I have a very simple grid, I create manually its columns, and bind them programatically to a IList<MyClass> object retreive from WCF.
So far so good.
I've added a function on the filtered event, so that I can perform some logic related to the ChartAggregateGrouping.
If the member is a string, no issue, but if it is an int or a double value, the application turns blank
Here's the stacktrace
Erreur : Unhandled Error in Silverlight Application Impossible d'effectuer un cast de l'objet de type 'System.Int32' en type 'System.String'. à lambda_method(ExecutionScope , GridBO )
à System.Linq.Enumerable.WhereListIterator`1.MoveNext()
à System.Linq.Buffer`1..ctor(IEnumerable`1 source)
à System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext()
à Telerik.Windows.Data.QueryableCollectionView.PopulateInternalList(IQueryable view)
à Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
à Telerik.Windows.Data.QueryableCollectionView.EnsureInternalList()
à Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
à Telerik.Windows.Data.QueryableCollectionView.get_IsEmpty()
à Telerik.Windows.Controls.GridView.BaseItemsControl.OnItemCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.DataItemCollection.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
à Telerik.Windows.Data.QueryableCollectionView.RefreshAndRaiseCollectionChanged(NotifyCollectionChangedEventArgs args)
à Telerik.Windows.Data.QueryableCollectionView.Refresh()
à Telerik.Windows.Data.QueryableCollectionView.EndDefer()
à Telerik.Windows.Data.QueryableCollectionView.DeferHelper.Dispose()
à Telerik.Windows.Data.DataItemCollection.OnGroupDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
à System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
à System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
à Telerik.Windows.Data.RadObservableCollection`1.RemoveItem(Int32 index)
à Telerik.Windows.Data.ObservableItemCollection`1.RemoveItem(Int32 index)
à System.Collections.ObjectModel.Collection`1.Remove(T item)
à Telerik.Windows.Controls.GridView.GridViewDataControl.Ungroup(String member)
à Telerik.Windows.Controls.GridView.GridViewDataControl.<>c__DisplayClass2d.<GroupingRequested>b__2c()
à Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
à Telerik.Windows.Controls.GridView.GridViewDataControl.GroupingRequested(Object origin, GroupingRequestedEventArgs e)
Fichier Source : http://localhost:49232/Default.aspx
Ligne : 0
And there's the class definition :
public class ChartCollection1 |
{ |
private String Attraa; |
private String Attrab; |
private String Attrac; |
private String Attrad; |
public int attraa |
{ |
get |
{ |
return Convert.ToInt32(Attraa.ToString()); |
} |
set |
{ |
Attraa = value.ToString(); |
} |
} |
public String attrab |
{ |
get |
{ |
return Attrab; |
} |
set |
{ |
Attrab = value.ToString(); |
} |
} |
public String attrac |
{ |
get |
{ |
return Attrac; |
} |
set |
{ |
Attrac = value.ToString(); |
} |
} |
public Double attrad |
{ |
get |
{ |
return Convert.ToDouble(Attrad.ToString()); |
} |
set |
{ |
Attrad = value.ToString(); |
} |
} |
public ChartCollection1(GridBO result) |
{ |
this.Attraa = result.attraa.ToString(); |
this.attrab = result.attrab.ToString(); |
this.attrac = result.attrac.ToString(); |
this.Attrad = result.attrad.ToString(); |
} |
} |
Apparently, there's an Int to string cast error somewhere, but not in my own code, since the filtered event isn't being launched at all.