Hi



I am creating AggregateFunctions code-behind (see example code below).  The CountFunction works but when I include a SumFunction the program crashes with the following error:



No generic method 'Sum' on type

'System.Linq.Enumerable' is compatible with the supplied type arguments. No type argiuments should be provided if the method is non-generic.   



I can only see two possible explanations:

1. I am not setting the AggregateFunction properties correctly.

2. Setting Grid.ItemsSource to ObservableCollection<dynamic>

This collections data is correct since is working correctly when not using AggregateFunctions.

Is a dynamically created class a problem?  The actual class properties are not dynamic but the actual system data types.



I am also using Grouping and it also works correctly.  To make sure that grouping was not the problem I eliminated the grouping but the program still crashes.

---- The following is being looped ----

GridViewDataColumn dataCol = new GridViewDataColumn();

dataCol.DataMemberBinding = new Binding(column.ColumnName);

dataCol.Header = column.ColumnName;

dataCol.UniqueName = column.ColumnName;

dataCol.DataType = Type.GetType(column.SystemDataType);

dataCol.FilterMemberType = Type.GetType(column.SystemDataType);

--- Hard coded to test AggregateFunctions

if (dataCol.UniqueName == "Uid")

{

 SumFunction sumFunction = new SumFunction();

 sumFunction.SourceField = "Uid";

        sumFunction.ResultFormatString = "Tot Uid: {0}";

        sumFunction.SourceFieldType = Type.GetType(column.SystemDataType);     // System.Int32

        dataCol.AggregateFunctions.Add(sumFunction);

}

--- End hard coding ---

grid.Columns.Add(dataCol);

---- End of Loop ----

grid.ShowColumnFooters = true;

grid.ShowGroupFooters = true;

grid.ItemsSource = new QueryableCollectionView(clientData.Result);

Crashed at this point setting the ItemsSource.

Before putting in the SumFunction code everything was working correctly!

clientData.Result is ObservableCollection<dynamic>

====================================

If you don't have the answer could you provide the code-behind to create AggregrateFunctions.  The following xaml snippet is from the WPF example Aggregates which is under the Grouping and Aggregates category.  In looking at numerous past posts of this problem I think it would be most helpful to many developers to take the aggregate example and define the grid properties in code-behind.  I would like to see a AggregateFunctions example that works using code-behind.



Thanks

Rich





<telerik:GridViewDataColumn Header="Freight"

           DataMemberBinding="{Binding Freight, StringFormat=c}">

                    <telerik:GridViewDataColumn.AggregateFunctions>

                        <telerik:SumFunction SourceField="Freight" ResultFormatString="Total: {0:c}" />

                    </telerik:GridViewDataColumn.AggregateFunctions>

 </telerik:GridViewDataColumn>

Hi Team,



I have a telerik pivot grid control with three levels to be diplayed in the pivot and the total of the items in one column,But am facing the issue here, where it displays the total correctly when it is expanded but when the pivot grid is collapsed it is showing another value as shown in the attachment..'

As shown in the image total is displaying correctly when expanded but when collapsed it is displaying double of total .Please help me out of this issue

Thanks,
Ruth

Hi!

Nested categories are supported?

I want to do something similar to the image attached.
Which is slightly different from the management of the nested properties.

Thanks

I am getting a pretty tough error that is coming from ItemsControlExtensions used by the TileList control. I get this error when I run the my application using Narrator.

I found an article about this on StackOverflow where somebody encountered this issue on some custom controls they had in their own solution that caused the error. But in my case, I am using Telerik. So I am kind of stuck unless Telerik fixes it.



Here is the link to the stack over flow find.



http://stackoverflow.com/questions/16245732/nullreferenceexception-from-presentationframework-dll



All I am trying to do is launch the app. The app uses a TileList control as well as a RadAutoCompleteBox, RadComboBox, and RadGridView.



When I run the app on Windows 8 I get two errors when the application starts:



First Error:

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: System.NullReferenceException

Stack:

   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)

   at System.Windows.Threading.DispatcherOperation.InvokeImpl()

   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)

   at System.Windows.Threading.DispatcherOperation.Invoke()

   at System.Windows.Threading.Dispatcher.ProcessQueue()

   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)

   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)

   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)

   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)

   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)

   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)

   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)

   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)

   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)

   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)

   at System.Windows.Application.RunInternal(System.Windows.Window)

   at System.Windows.Application.Run()

Error 2:

Faulting application name: xxx.exe, version: 1.0.0.0, time stamp: 0x525495d8

Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000

Exception code: 0xc0000005

Fault offset: 0x000007fe546901ab

Faulting process id: 0x1e5c

Faulting application start time: 0x01cec47f37ad9317

Faulting application path: C:\Users\xxx\Desktop\xxx\Sprint1b\xxx.exe

Faulting module path: unknown

Report Id: 7f5853ab-3072-11e3-bef0-5c514f0c8fb3

Faulting package full name:

Faulting package-relative application ID:

I am able to run the app on Windows 7 and Windows 8.1 BUT when I run narrator on Windows 8.1 I get this error:



   at Telerik.Windows.Controls.ItemsControlExtensions.<GetContainers>d__0`1.MoveNext() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Common\ItemsControlExtensions.cs:line 45

   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()

   at Telerik.Windows.Automation.Peers.RadAutoCompleteBoxAutomationPeer.GetChildrenCore() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\AutoCompleteBox\AutomationPeers\RadAutoCompleteBoxAutomationPeer.cs:line 173

   at System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()

   at System.Windows.Automation.Peers.AutomationPeer.GetChildren()

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.ValidateConnected(AutomationPeer connectedPeer)

   at MS.Internal.Automation.ElementProxy.StaticWrap(AutomationPeer peer, AutomationPeer referencePeer)

   at System.Windows.Automation.Peers.AutomationPeer.RaiseAutomationEvent(AutomationEvents eventId)

   at System.Windows.Automation.Peers.SelectorAutomationPeer.RaiseSelectionEvents(SelectionChangedEventArgs e)

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.End()

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)

   at System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)

   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)

   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)

   at System.Windows.DependencyObject.SetCurrentValueInternal(DependencyProperty dp, Object value)

   at System.Windows.Controls.TabControl.OnGeneratorStatusChanged(Object sender, EventArgs e)

   at System.EventHandler.Invoke(Object sender, EventArgs e)

   at System.Windows.Controls.ItemContainerGenerator.SetStatus(GeneratorStatus value)

   at System.Windows.Controls.ItemContainerGenerator.Generator.System.IDisposable.Dispose()

   at System.Windows.Controls.Panel.GenerateChildren()

   at System.Windows.Controls.Primitives.TabPanel.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Border.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.ContextLayoutManager.UpdateLayout()

   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)

   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()

   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)

   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)

   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

Hi,

i have a urgent problem. We have to bind a observalcollection to a RadGridView. The Problem ist that this collection must be dynamic. For Example:
We have a tabel "Customer" with 20 columns and a table "purchasing" with 40 columns and so on... We have to create on runtime all the properties
and the collection!

Is there any standalone wpf example somewhere? All i found are Silverlight-Examples and these will not work with wpf...

Thanks a lot
Best Regards
MJ

Hello,

I upgraded from version 2012.3.1129.40 to 2013.3.1204.40.
In our application, we can drag a node from a treeview and drop it in a WinForms control.
With the old version of Telerik, we were able to change the TreeViewDragCue object from the WinForm control, like this:

Now with the new version, I'm using the recommended DragDropManager and DragDropPayloadManager objects, I tried this:

Unfortunately, the options object is always null.
Is there a way to change the TreeViewDragVisual object to give a feedback ?

Best regards,

I try created my first WPF Telerik WPF app.

I installed RAD Controls for Window.

In VS 2013 I chose File > New > Project >Telerik > Windows > C# RadControls WPF Application

In wizard I added ref to DLL Telerik.Windows.Controls, Telerik.Windows.Controls.Navigation and Telerik.Windows.Data.

VS creted WPF project but startup window is type of System.Windows.Window.

I hope that startup window will be type of RadWindow.

Ok, I deleted it and added Project > New Item > Telerik Scenarion > RadWindow.

VS added RadWindow. I changed startup URI in App.xaml.

Run WPF app and what happen :D

RadWindow is open in NavigationWindow :D 

I don’t understand why this magic happen. 

I know that in WPF in startup URI is on Page WPF automatically create NavigationWindow as host container for Page.

So where is problem?

Thanks for support

Hi, how can I set custom color for Doughnut3D slices ?

I've this code, and I want that "Slice 1" in Blue, "Slice 2" in Green, "Slice 3" in Red and "Slice 4" in Yellow. I need to use my personal colors.

// CODE
                    rcTimes.DefaultView.ChartArea.DataSeries.Clear();
                    rcTimes.DefaultView.ChartLegend.Header = string.Empty;
                    DataSeries serPT = new DataSeries();
                    Doughnut3DSeriesDefinition sdWorking = new Doughnut3DSeriesDefinition();
                    sdWorking.ShowItemLabels = false;
                    serPT.Definition = sdWorking;
                    DataPoint dp = new DataPoint(report.WorkingTime.TotalSeconds);
                    dp.LegendLabel = "Slice 1";
                    serPT.Add(dp);
                    dp = new DataPoint(report.WorkingExtraTime.TotalSeconds);
                    dp.LegendLabel = "Slice 2";
                    serPT.Add(dp);
                    dp = new DataPoint(report.PauseTime.TotalSeconds);
                    dp.LegendLabel = "Slice 3";
                    serPT.Add(dp);
                    dp = new DataPoint(report.AlarmTime.TotalSeconds);
                    dp.LegendLabel = "Slice 4";
                    serPT.Add(dp);
                    rcTimes.DefaultView.ChartArea.DataSeries.Add(serPT);

Hi,

I am using the DisplayIndex property on a RadGridView to set the column order in runtime (through databinding). The problem is that I receive an ArgumentOutOfRangeException when my window is opened.

The XAML looks like the following:



I've verified that I do get a callback to my property methods in the ViewModel. If I set the DisplayIndex to a static value in the XAML (i.e. DisplayIndex="3") works fine.

Why doesn't this work with data binding?

Details:
.NET version: 4.5
Telerik version. 2013.Q1

Would really appreciate a solution to this, thanks!

Hi!
The behaviour when the child dialog window blinks, when user clicks on currenlty inactive parent window is usual for regular non-telerik Window control.
Unfortunately, RadWindow doesn't blink, and our customers have noticed that. How do I achieve such behaviour?
Thank you!