Questions on UI for WPF Forum

9 answers

342 views

Hi,

I have a grid that i am populating Programmatically. I create the Columns and add them in code. I have changed the edit type of one of the columns to use a combo box. Everything works cool and the grid loads and the combo box on the cell is populated. The problem comes in when selecting a value in the combobox. That selected value updates not only the current cell, butt all cells of the column in the other rows.

P.S.

It seems like it updates all cell with a similar value before the change.

If anybody can help with this i would be every gratefull. I have been trying to sort this problem out for the last week.

Below is the code in my app.

DataGridResults.AutoGenerateColumns = false;

GridViewDataColumn columnID = new GridViewDataColumn();

columnID.DataType = typeof(string);

columnID.UniqueName = "ID";

columnID.DataMemberPath = "ID";

columnID.HeaderText = "ID";

columnID.IsVisible = false;

GridViewDataColumn columnBarcode = new GridViewDataColumn();

columnBarcode.DataType = typeof(string);

columnBarcode.UniqueName = "Barcode";

columnBarcode.DataMemberPath = "Barcode";

columnBarcode.HeaderText = "Barcode";

GridViewDataColumn columnStatus_ID = new GridViewDataColumn();

columnStatus_ID.DataType = typeof(string);

columnStatus_ID.UniqueName = "Status";

columnStatus_ID.DataMemberPath = "Status.Name";

columnStatus_ID.HeaderText = "Status";

columnStatus_ID.Width = new System.Windows.GridLength(200);

DataGridResults.Columns.Add(columnID);

DataGridResults.Columns.Add(columnBarcode);

DataGridResults.Columns.Add(columnName);

DataGridResults.Columns.Add(columnStatus_ID);

//Status Combo and Column

ComboBoxEditorSettings comboBoxEditorSettings = new ComboBoxEditorSettings();

Granite.Objects.Status _stat = new Granite.Objects.Status();

comboBoxEditorSettings.ItemsSource = _stat.GetAll(Granite.Objects.AppliesTo.LOCATION);

comboBoxEditorSettings.DisplayMemberPath = "Name";

comboBoxEditorSettings.SelectedValuePath = "Name";

((GridViewDataColumn)DataGridResults.Columns["Status"]).EditorSettings = comboBoxEditorSettings;

GridView

answered on 05 May 2009

2 answers

70 views

Bugs in Grid or old version?

I am trying to figure out why I have a few bugs in using the WPF grid. I am open to the possibility that i have an old version of the GridView but since I did download the trail components fairly recently (within the last 4 weeks) im hoping im not too out-of-date.

Here are my three issues that need immediate attention:

Bug: Column Sorting

We have a bug that if we click to sort a column, click again to sort the other way, then click again to reset, it will break sort. Clicking after that will NOT sort anymore. It does nothing!

In your demo that we downloaded we also see this in the following sample of this bug, so we don’t think it sour code:

Populating with Data > Data Sources > Property Path

Online though, this works, so is this a bug that has been fixed and we simply need to get updated components?

Bug: Binding, then Rebinding

I have an application with a BackgroundWorker class that does some work, puts together a custom collection in a LIST<> and in the Worker completed method binds it to the grid. This works fine, but once i run the worker again, the new set of data is not visible. My original content vanishes, grid scrollbars change, but i dont see anything.

The code is VERY simple, MyGrid.Itemsource = e.Results

i've tried adding a .rebind and even setting Itemsource to NULL before assigning the new results, nothing fixes this issue.

I switched to use a LISTBOX standard .NET control instead and now things work perfectly using the same exact code.

Bug: Missing scrollbars

We have a large example that i simply am not allowed to post in full here, but it seems that for whatever reason us NOT auto generating columns and instead creating them manually is not turning on the scrollbars.

We generate the columns in code and add them to the grid.

I made sure its an issue with your control and not a XAML layout problem by putting a border around the grid that shows perfectly with right/bottom ending where I expected it to end visually, but still no scrollbars from your control that clearly has data in both directions that is not visible.

I can press keydown and go off screen!

Next Steps

For next steps and in general can you tell me how i can check if we have the latest build? Is there hot fixes we can apply?

I know we are still in "trial" mode but we need to finish this proof of concept before the work order can go ahead purchasing your control suite. Please help me fix my issues so i can help get you this sale.

GridView

answered on 05 May 2009

1 answer

91 views

Telerik bug: divided by zero

Hi,
I found a bug in your chart control, mainly when I set DataSeries with only 1 element and another with many, I get errors:

    
               w System.TimeSpan.Interval(Double value, Int32 scale) 
        
               w System.TimeSpan.FromSeconds(Double value) 
        
               w Telerik.Windows.Controls.Charting.DelayConverter.CalculateItemDelayBasedOnTotalDuration() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Animations\DelayConverter.cs:wiersz 87

It looks like you divide by zero and then try to use it in TimeSpan.FromSeconds method.

Complete stacktrace:

    
               w System.TimeSpan.Interval(Double value, Int32 scale) 
        
               w System.TimeSpan.FromSeconds(Double value) 
        
               w Telerik.Windows.Controls.Charting.DelayConverter.CalculateItemDelayBasedOnTotalDuration() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Animations\DelayConverter.cs:wiersz 87 
        
               w Telerik.Windows.Controls.Charting.DelayConverter.CalculateValue(Double[] delayCoefficients) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Animations\DelayConverter.cs:wiersz 47 
        
               w Telerik.Windows.Controls.Charting.BaseAnimationConverter.Convert(Object value, Type targetType, Object parameter, CultureInfo culture) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Animations\BaseAnimationConverter.cs:wiersz 88 
        
               w Telerik.Windows.Controls.Charting.StaticConverter`2.Convert(Object value, Object parameter, CultureInfo culture) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Converters\StaticConverter.cs:wiersz 12 
        
               w Telerik.Windows.Controls.Charting.StaticConverter`2.Convert(Object value, Object parameter) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Converters\StaticConverter.cs:wiersz 22 
        
               w Telerik.Windows.Controls.Charting.BaseChartItem.ConfigureAnimationSettings() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Base\BaseChartItem.cs:wiersz 440 
        
               w Telerik.Windows.Controls.Charting.BaseChartItem.SetAnimationSettings() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Base\BaseChartItem.cs:wiersz 775 
        
               w Telerik.Windows.Controls.Charting.BaseChartItem.OnApplyTemplate() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Base\BaseChartItem.cs:wiersz 377 
        
               w Telerik.Windows.Controls.Charting.BaseLabelChartItem.OnApplyTemplate() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Base\BaseLabelChartItem.cs:wiersz 164 
        
               w Telerik.Windows.Controls.Charting.BasePointMarkChartItem.OnApplyTemplate() w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\Base\BasePointMarkChartItem.cs:wiersz 359 
        
               w System.Windows.FrameworkElement.ApplyTemplate() 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w Telerik.Windows.Controls.Charting.LinearSeriesPanel.MeasureOverride(Size availableSize) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\ChartArea\Series\LinearSeriesPanel.cs:wiersz 139 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) 
        
               w System.Windows.Controls.ItemsPresenter.MeasureOverride(Size constraint) 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w System.Windows.Controls.Control.MeasureOverride(Size constraint) 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w Telerik.Windows.Controls.Charting.ChartPanel.MeasureOverride(Size availableSize) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\ChartArea\ChartPanel.cs:wiersz 39 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) 
        
               w System.Windows.Controls.ItemsPresenter.MeasureOverride(Size constraint) 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w Telerik.Windows.Controls.Charting.ClipPanel.MeasureOverride(Size availableSize) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\ChartArea\ClipPanel.cs:wiersz 30 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w Telerik.Windows.Controls.Charting.PlotAreaPanel.MeasureOverride(Size availableSize) w c:\Builds\WPF_Scrum\Charting_CI_Build\Sources\Development\Charting\Telerik.Windows.Controls.Charting\Chart\ChartArea\PlotAreaPanel.cs:wiersz 63 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV) 
        
               w System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV) 
        
               w System.Windows.Controls.Grid.MeasureOverride(Size constraint) 
        
               w System.Windows.FrameworkElement.MeasureCore(Size availableSize) 
        
               w System.Windows.UIElement.Measure(Size availableSize) 
        
               w System.Windows.ContextLayoutManager.UpdateLayout() 
        
               w System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg) 
        
               w System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork() 
        
               w System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks() 
        
               w System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget) 
        
               w System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget) 
        
               w System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) 
        
               w System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) 
        
               w System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) 
        
               w System.Windows.Threading.DispatcherOperation.InvokeImpl() 
        
               w System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state) 
        
               w System.Threading.ExecutionContext.runTryCode(Object userData) 
        
               w System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) 
        
               w System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) 
        
               w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
        
               w System.Windows.Threading.DispatcherOperation.Invoke() 
        
               w System.Windows.Threading.Dispatcher.ProcessQueue() 
        
               w System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 
        
               w MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 
        
               w MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) 
        
               w System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) 
        
               w System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) 
        
               w System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) 
        
               w System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter) 
        
               w System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg) 
        
               w MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) 
        
               w MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) 
        
               w System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) 
        
               w System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame) 
        
               w System.Windows.Threading.Dispatcher.Run() 
        
               w System.Windows.Application.RunDispatcher(Object ignore) 
        
               w System.Windows.Application.RunInternal(Window window) 
        
               w System.Windows.Application.Run(Window window) 
        
               w System.Windows.Application.Run() 
        
               w RHEAClient.App.Main() w F:\RHEAClient\obj\Release\App.g.cs:wiersz 0 
        
               w System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) 
        
               w System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) 
        
               w Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() 
        
               w System.Threading.ThreadHelper.ThreadStart_Context(Object state) 
        
               w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
        
               w System.Threading.ThreadHelper.ThreadStart()

Regards,
Jacek Ciereszko

Chart

answered on 05 May 2009

5 answers

120 views

Declarative Heirarchy defintion

Hi guys,

Are there plans to allow parent/child grid hierarchies to be declared declaratively in XAML in future releases of the DataGrid? If not, this is definitely a feature I would like to request. I would make the construction of child grids much simpler and easier to implement.

Cheers

Justin

GridView

answered on 05 May 2009

3 answers

236 views

RadGridView ColumnsWidthMode="Fill" Issue

Hi,

I am using version 2009.1.312.35.

The RadGridView is wrapped in a StackPanel which is in a column of a Grid with a splitter.

In the following code, The last column does not take up the remaining space. Are there additional tricks to get it to work? I read this post: http://www.telerik.com/community/forums/wpf/gridview/documentation-is-frustrating.aspx, and I think I did what it suggests, but it doesn't work.

Also, will the column resize when the splitter is moved?

    
            <telerik:RadGridView   
        
            HorizontalAlignment="Stretch"   
        
            x:Name="uxLibraryView"   
        
            MultipleSelect="True"   
        
            AutoGenerateColumns="False"   
        
            ColumnsWidthMode="Fill"   
        
            AllowDrop="False"   
        
            ShowGroupPanel="False"   
        
            ItemsSource="{Binding Path=LibraryMembers,Diagnostics:PresentationTraceSources.TraceLevel=High}"   
        
            IsFilteringAllowed="False"   
        
            telerik:GridViewCell.EditEnded="uxLibraryView_EditEnded"   
        
            SelectionChanged="uxLibraryView_SelectionChanged">   
        
            <telerik:RadGridView.Resources>   
        
            ...Context Menu Stuff ...  
        
            </telerik:RadGridView.Resources>   
        
            <telerik:RadGridView.Columns>   
        
                <telerik:GridViewDataColumn HeaderText="{x:Static properties:Resources.Common_Label_Type}"   
        
                    IsReadOnly="True"   
        
                    UniqueName="LibraryContentType"   
        
                    Width="23">   
        
                        <telerik:GridViewColumn.CellStyle>   
        
                        <Style TargetType="{x:Type telerik:GridViewCell}">   
        
                            <Setter Property="Template">   
        
                                <Setter.Value>   
        
                                    <ControlTemplate TargetType="{x:Type telerik:GridViewCell}">   
        
                                        <Image Stretch="None" Width="16" Height="16"   
        
                                                    Source="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content, Converter = {StaticResource ContentTypeToImageConverter}}"   
        
                                                     Margin="2,0,5,0"/>   
        
                                    </ControlTemplate>   
        
                                </Setter.Value>   
        
                            </Setter>   
        
                        </Style>   
        
                    </telerik:GridViewColumn.CellStyle>   
        
                </telerik:GridViewDataColumn>   
        
                <telerik:GridViewDataColumn HeaderText="{x:Static properties:Resources.Common_Label_Name}"   
        
                        UniqueName="Name"   
        
                        Width="*"    />   
        
                </telerik:RadGridView.Columns> 
        
            </telerik:RadGridView>

Thank you

GridView

answered on 05 May 2009

5 answers

131 views

Style on AppSettings

Guys,

Do we have an appsettings to set the style to all Telerik Controls for WPF like we have for ASP.NET AJAX Controls?

Regards,

Henrique

General Discussions

answered on 04 May 2009

4 answers

138 views

Validation on child gridView/table

I followed the Validation example from the demos to add validation to my gridView that happens to have a child grid. It is working fine on the master table, however, on the child gridView, it's not working, the event is not even firing. I'm assuming I'll have to bind the validation event to the child gridview as well, but how do I go about doing so?

Thanks,
Marty

GridView

answered on 04 May 2009

1 answer

173 views

InvalidOperationException when trying to filter

Hi,

In the application I'm working on, we're using CSLA.NET as the Business Object Framework. In the framework there are a couple of list classes that can be used, 2 of them are: BusinessListBase<T,C> and ReadOnlyListBase<T,C>.

In the UI I have a RadGridView bound to a list. If this list is of the type ReadOnlyListBase, everything works fine. But if I change it to a BusinessListBase, I get the following exception:

    
            System.InvalidOperationException: No method 'OrderBy' on type 'System.Linq.Queryable' is compatible with the supplied arguments.  
        
               at System.Linq.Expressions.Expression.FindMethod(Type type, String methodName, Type[] typeArgs, Expression[] args, BindingFlags flags)  
        
               at System.Linq.Expressions.Expression.Call(Type type, String methodName, Type[] typeArguments, Expression[] arguments)  
        
               at Telerik.Windows.Data.QueryableExtensions.Ordered(IQueryable source) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\Data\Collections\QueryableExtensions.cs:line 88  
        
               at Telerik.Windows.Data.RecordTreeBuilder`1.GetDistinctValues(String fieldName) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\Data\Data\RecordTreeBuilder.cs:line 185  
        
               at Telerik.Windows.Data.RecordManager.GetDistinctValues(String fieldName) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\Data\Data\RecordManager.cs:line 294  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.PopulateDistinctValues() in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 541  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.DropDownPopupOpened(Object sender, EventArgs e) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 470  
        
               at System.Windows.FrameworkElement.RaiseClrEvent(EventPrivateKey key, EventArgs args)  
        
               at System.Windows.Controls.Primitives.Popup.OnOpened(EventArgs e)  
        
               at System.Windows.Controls.Primitives.Popup.CreateWindow(Boolean asyncCall)  
        
               at System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(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, OperationType operationType)  
        
               at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)  
        
               at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)  
        
               at System.Windows.Controls.Primitives.Popup.set_IsOpen(Boolean value)  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.OnIsDropDownOpenChanged(Boolean oldValue, Boolean newValue) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 251  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.OnIsDropDownOpenChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 126  
        
               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, OperationType operationType)  
        
               at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)  
        
               at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.set_IsDropDownOpen(Boolean value) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 108  
        
               at Telerik.Windows.Controls.GridView.FilteringDropDown.DropDownButtonClick(Object sender, RoutedEventArgs e) in c:\Builds\WPF_Scrum\WPF_Team\Sources\Development\WPF\GridView\GridView\Filtering\FilteringDropDown.cs:line 486  
        
               at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)  
        
               at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)  
        
               at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)  
        
               at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)  
        
               at System.Windows.Controls.Primitives.ButtonBase.OnClick()  
        
               at System.Windows.Controls.Primitives.ToggleButton.OnClick()  
        
               at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)  
        
               at System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)  
        
               at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)  
        
               at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)  
        
               at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)  
        
               at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)  
        
               at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)  
        
               at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)  
        
               at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)  
        
               at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)  
        
               at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)  
        
               at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)  
        
               at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)  
        
               at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)  
        
               at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)  
        
               at System.Windows.Input.InputManager.ProcessStagingArea()  
        
               at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)  
        
               at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)  
        
               at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)  
        
               at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)  
        
               at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)  
        
               at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)  
        
               at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)  
        
               at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)  
        
               at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

I tried a lot of things only to come to the conclusion that this (hopefully) is a bug in the RadGridView.

Any suggestions whether I'm wrong or if this is already known and maybe solved in a new release?

Thanks in advance.

GridView

answered on 01 May 2009

1 answer

307 views

Removing a Series/DataPoints from a series

Hi

I'm working with the WPF controls and trying to build an application to display call data on a screen.

My screen has 2 charts, the first of which is a line graph showing call volume over time. In this, I add a new data point to a series as the day progresses - this works OK.

The second chart is a summary of all calls by a business area. Therefore, it is possible that all the data points on this chart could change. Therefore I would either need to refresh or remove and add the data points. I cannot find anything in documentation or examples to suggest how this could be done.

There seems to be a Remove() method on the DataSeries object, but this takes a DataPoint object - so therefore I wrote code to enumerate the data points in a series and attempt to remove them :

                                    
                       DataSeries inboundBarSeries = new DataSeries();         
                        DataSeries outboundBarSeries = new DataSeries();         
                        inboundBarSeries.Definition = new BarSeriesDefinition();         
                        outboundBarSeries.Definition = new BarSeriesDefinition();         
                        inboundBarSeries.Label = "Inbound";         
                        outboundBarSeries.Label = "Outbound";         
                        skillBarChart.DefaultView.ChartArea.DataSeries.Add(inboundBarSeries);         
                        skillBarChart.DefaultView.ChartArea.DataSeries.Add(outboundBarSeries);         
                               
                                
                    }         
                    public void PopulateSkillChart()         
                    {         
                     
                                 
                     
                        foreach(DataPoint dp in skillBarChart.DefaultView.ChartArea.DataSeries[0])         
                        {         
                            skillBarChart.DefaultView.ChartArea.DataSeries[0].Remove(dp);         
                        }         
                     
                        DataSeries inboundBarSeries = skillBarChart.DefaultView.ChartArea.DataSeries[0];         
                        DataSeries outboundBarSeries = skillBarChart.DefaultView.ChartArea.DataSeries[1];         
                        this.loadInboundSkillChart(inboundBarSeries, outboundBarSeries);         
                              
                    }         
                     
                     

The first chunk of code runs once when the screen is initialised, and adds the empty series to the chart. The PopulateSkillChart code then runs on a periodic basis and is intended to remove the data points and re-add them. However this code fails with "Collection was modified; enumeration operation may not execute." when I try and execute it.

Would this be recommended as a way to refresh the data set or is there an easier method which I am missing?

I would appreciate your help on this.

Thanks

Richard

Chart

answered on 01 May 2009

1 answer

136 views

Set initial zoom level of the 3D chart?

How can I set the initial zoom level of the 3d chart? In my situation, the 3D pie chart fills only a small fraction of the available space available. The user can't interact with the chart, so it needs to happen when the chart gets created.

Thanks
Greg

Chart

answered on 30 Apr 2009