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Closed Issue: InvalidOperationException when adding row to single selection DataGrid [7529]

BenCarter — Thu, 16 May 2013 12:31:19 GMT

If you set the DataGrid SelectionMode="Single" and CanUserAddRows="True" and try to add a row by double clicking on the placeholder, you get the following exception:

System.InvalidOperationException was unhandled
Message="Can only change SelectedItems collection in multiple selection modes. Use SelectedItem in single select modes."
Source="PresentationFramework"
StackTrace:
at System.Windows.Controls.Primitives.Selector.OnSelectedItemsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
at System.Windows.Controls.SelectedItemCollection.RemoveItem(Int32 index)
at System.Collections.ObjectModel.Collection`1.Remove(T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Remove(Object value)
at Microsoft.Windows.Controls.DataGrid.UnselectItem(Object item) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 3837
at Microsoft.Windows.Controls.DataGrid.OnExecutedBeginEdit(ExecutedRoutedEventArgs e) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 1527
at Microsoft.Windows.Controls.DataGrid.OnExecutedBeginEdit(Object sender, ExecutedRoutedEventArgs e) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 1492
at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.UIElement.OnExecutedThunk(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)
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.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
at System.Windows.Input.RoutedCommand.Execute(Object parameter, IInputElement target)
at Microsoft.Windows.Controls.DataGrid.BeginEdit(RoutedEventArgs editingEventArgs) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 2336
at Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDown(MouseButtonEventArgs e) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGridCell.cs:line 658
at Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e) in C:\Work\WPF\DataGridCTPSample\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGridCell.cs:line 636
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.OnMouseDownThunk(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)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at DataGridCTPSample.App.Main() in C:\Work\WPF\DataGridCTPSample\DataGridCTPSample\obj\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

The code breaks on line 3837 of DataGrid.cs (CTP).

You can reproduce this behavior using Vincent Sibal's sample found at: http://blogs.msdn.com/vinsibal/archive/2008/08/25/wpf-datagrid-sample-add-a-preview-tooltip-to-a-scrollviewer.aspx
Just pick "Single" in the SelectionMode drop down and then double click on the empty row at the bottom of the grid.

Closed Issue: CanUserAddRows="False" and CanUserDeleteRows="False" are not respected and cause exceptions [7565]

BenCarter — Thu, 16 May 2013 12:31:19 GMT

I want a sortable, read-only view of my data with no ability to add or remove rows. To accomplish this I used the following (real app has more columns):

<dg:DataGrid ItemsSource="{Binding Path=Users}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False" >
<dg:DataGrid.Columns>
<dg:DataGridTemplateColumn Header="User Name" SortMemberPath="UserName" >
<dg:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=UserName}" />
</DataTemplate>
</dg:DataGridTemplateColumn.CellTemplate>
</dg:DataGridTemplateColumn>
</dg:DataGrid.Columns>
</dg:DataGrid>

The problem is that the DataGrid does not respect the CanUserAddRows and CanUserDeleteRows properties and includes an extra row in the resulting DataGrid. This extra row is always editable. When the user edits one of the cells in the extra row, the DataGrid attempts to add another item to the collection. Since I have set CanUserAddRows="False" this violates an assertion (see attached image). If I attempt to continue past the assertion, a null reference exception is thrown (see below), likely because I am now trying to edit an item that doesn't exist. This extra row should not appear when CanUserAddRows is set to false. The DataGrid is pretty much unusable until this is fixed :(

Exception detail:
System.NullReferenceException was unhandled by user code
Message="Object reference not set to an instance of an object."
Source="WPFToolkit"
StackTrace:
at Microsoft.Windows.Controls.DataGrid.OnExecutedBeginEdit(ExecutedRoutedEventArgs e) in C:\Source\Azaleos\ThirdPartyAssemblies\DataGrid_CTP\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 1575
at Microsoft.Windows.Controls.DataGrid.OnExecutedBeginEdit(Object sender, ExecutedRoutedEventArgs e) in C:\Source\Azaleos\ThirdPartyAssemblies\DataGrid_CTP\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 1492
at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.UIElement.OnExecutedThunk(Object sender, ExecutedRoutedEventArgs e)
at System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)
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.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)
at System.Windows.Input.RoutedCommand.Execute(Object parameter, IInputElement target)
at Microsoft.Windows.Controls.DataGrid.BeginEdit(RoutedEventArgs editingEventArgs) in C:\Source\Azaleos\ThirdPartyAssemblies\DataGrid_CTP\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGrid.cs:line 2336
at Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDown(MouseButtonEventArgs e) in C:\Source\Azaleos\ThirdPartyAssemblies\DataGrid_CTP\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGridCell.cs:line 658
at Microsoft.Windows.Controls.DataGridCell.OnAnyMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e) in C:\Source\Azaleos\ThirdPartyAssemblies\DataGrid_CTP\Toolkit-release\DataGrid\Microsoft\Windows\Controls\DataGridCell.cs:line 636
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.OnMouseDownThunk(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)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.StartDispatcherInBrowser(Object unused)
InnerException:

Closed Issue: DataGrid does not work in partial trust xbap [7606]

BenCarter — Thu, 16 May 2013 12:31:19 GMT

System.Security.SecurityException was unhandled by user code
Message="Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."
Source="WPFToolkit"
StackTrace:
at Microsoft.Windows.Controls.WeakHashtable.SetWeak(Object key, Object value)
at Microsoft.Windows.Controls.DataGridHelper.GetPropertyTransferEnabledMapForObject(DependencyObject d, DependencyProperty p)
at Microsoft.Windows.Controls.DataGridHelper.TransferProperty(DependencyObject d, DependencyProperty p)
at Microsoft.Windows.Controls.DataGridColumn.SyncProperties()
at Microsoft.Windows.Controls.DataGrid.UpdateColumnSizeConstraints(IList list)
at Microsoft.Windows.Controls.DataGrid.OnColumnsChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Microsoft.Windows.Controls.DataGridColumnCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Microsoft.Windows.Controls.DataGridColumnCollection.InsertItem(Int32 index, DataGridColumn item)
at System.Collections.ObjectModel.Collection`1.Add(T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Add(Object value)
at System.Windows.Markup.BamlRecordReader.SetPropertyValueToParent(Boolean fromStartTag, Boolean& isMarkupExtension)
InnerException:

I managed to hack out the weak hash table references but then I lose the column headers. A workaround for this would be greatly appreciated and I would hope that the released version will support partial trust xbap as it is a supported means of deployment.

Closed Issue: Memory Leak in VSM [7906]

BenCarter — Thu, 16 May 2013 12:31:17 GMT

The implementation of VSM is using a DependencyPropertyDescriptor to know when the value of a property has changed. However, you never unhook that so the object for which you added a handler (button, calendar, etc.) will be rooted.

Closed Issue: AutoGenerateColumns fails when column name contains a period [9852]

petterh — Thu, 16 May 2013 12:31:06 GMT

When using AutoGenerateColumns="true" to bind to a DataTable that has a column with a period (.) in its name (for example, "my.columnName"), then the column will render in the DataGrid, but the cells will not display any data.

Closed Issue: DataGrid SelectionChanged event fired many times when scrolling [11077]

navin08 — Thu, 16 May 2013 12:31:03 GMT

If you scroll up/down with the mouse and you don't change the selected row(s) but the event will be fired as many times as many row you scrolled. In this case the event should not be fired.
If you scroll with keyboard and you use the page up/down keys, you jump a few rows and change the selection. In this case the event will be fire not only once but as many times as many rows you jumped.

This behaviour is a major performance issue if you have a longer task to do when you have the selection changed.

To reproduce:
1, Create a DataGrid
2, Fill it with 100 rows
3, Make the DataGrid big enough to display 20 lines
4, Make the Vertical Scrollbar visible
5, Create a SelectionChanged event (you can put a Sleep() into the handler to feel the problem:)
6, Put a breakpoint into the event
7, Run the app
8, Select a row
9, Scroll with keyboard or mouse

I used the DataGrid of the June 2009 Toolkit, and also tried the DataGrid in build 29533 (November 2009).

Closed Issue: DatePicker: DisplayDateStart and DisplayDateEnd gets modified [11121]

taurus1900 — Thu, 16 May 2013 12:31:03 GMT

If a date is entered in the DatePicker textbox, and that date is before the DisplayDateStart, the date value is allowed, AND the DisplayDateStart gets changed to the entered date.

If the date entered is after DisplayDateEnd, the date value is allowed AND the DisplayDateEnd gets changed to the entered date.

Closed Issue: Right-click on the window icon is handled wrong in a ribbonwindow with the august 02 release of the Micorosoft Ribbon for WPF [13903]

navin08 — Thu, 16 May 2013 12:31:03 GMT

Hello

When right clicking the window icon in a ribbonwindow the system menu shows up the same way as if it was left clicked. This is different from a normal window where right clicking the window icon causes the same effect as if there was a right click in the non client area. Also at this moment the system menu shows up on the rightmousedown event where it should be rightmouseup like other windows.

To see this is very simple. You can just run one of the sample you get together with the source code and compare it to a normal wpf window or win32 window.

Closed Issue: White glow on ribbonwindow title not shown in .net 4.0 [13928]

navin08 — Thu, 16 May 2013 12:31:03 GMT

Hello everyone

The white glow on a title in a window and a ribbonwindow doesn't work in .net 4.0 because bitmapeffects are unsupported.
Normally they should automatically be mapped on the correct effect from system.windows.media.effects, but the used bitmapeffects doesn't have a mapping.

Thank you.

Closed Issue: Icon, title and qatoolbar are outlined uncorrectly when a ribbonwindow is maximized. [13929]

troym — Thu, 16 May 2013 12:31:02 GMT

Hello everyone

When maximizing a ribbonwindow or other window, the icon and the title would normally be placed lower when the window is maximized.
This doesn't happen with the ribbonwindow. To see this, maximize a ribbonwindow, for example one of the samples and compare it to al normal window.

Thank you.

Commented Issue: StackedColumnSeries - Exception when data is removed from underlying collection [14742]

straatvark — Tue, 30 Apr 2013 15:34:28 GMT

Hi,

I have chart with StackedColumnSeries. When the data is cleared in the collection, it throws InvalidOperationException.

Collection was modified; enumeration operation may not execute.
at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
at System.Collections.Generic.List`1.Enumerator.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Windows.Controls.DataVisualization.Charting.DefinitionSeries.SeriesDefinitionItemsSourceCollectionChanged(SeriesDefinition definition, NotifyCollectionChangedAction action, IList oldItems, Int32 oldStartingIndex, IList newItems, Int32 newStartingIndex)
at System.Windows.Controls.DataVisualization.Charting.SeriesDefinition.ItemsSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Windows.Controls.DataVisualization.Charting.SeriesDefinition.<OnItemsSourceChanged>b__3(SeriesDefinition instance, Object source, NotifyCollectionChangedEventArgs eventArgs)
at System.Windows.Controls.WeakEventListener`3.OnEvent(TSource source, TEventArgs eventArgs)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.ClearItems()
at System.Collections.ObjectModel.Collection`1.Clear()

Thanks.

Regards
Kiran
Comments: ** Comment from web user: straatvark **

Hi,

I have the same issue with the SL5 StackedColumnSeries where I would remove items from a ObservableCollection. (Adding items refesh the chart as expected, but removal throws an exception)

Did you get a workaround chasday?

Thanks

Created Issue: Binding update adds news series to WPF Toolkit chart (instead of replacing/updating series) [19654]

kamlendra — Tue, 30 Apr 2013 11:07:16 GMT

i was facing issue of multiple/overlapping of Column in Column series of the charting toolkit(PFA).
when i snooped it by a UI tool i found that in Pie series DataPoint are getting updated but in column series it only adds up.
when searched for solution. i found http://stackoverflow.com/questions/3039141/binding-update-adds-news-series-to-wpf-toolkit-chart-instead-of-replacing-updat

but i cannot use the above mentioned one as i am using dll only. is this issue fixed in newer version? or any other workaround available?

Commented Issue: DatePicker: Always throws an exception, when a valid date is encountered. [14044]

ashishright — Fri, 12 Apr 2013 12:38:22 GMT

Forgive me, perhaps I'm missing something... but how do I get the new WPFToolkit DataPicker to NOT throw an exception, and crash,
when I type in an invalid date (eg 17/18/2010), then make the control lose focus ?

I tried declaring a new UserControl, based on the DatePicker control, and adding whatever events I could think of to catch such an
event, but none seem to prevent the Exception from being shown.

For example:

public class DatePickerWithValidation : DatePicker
{
public override void OnApplyTemplate()
{
this.DateValidationError += new EventHandler<DatePickerDateValidationErrorEventArgs>(DatePickerWithValidation_DateValidationError);
base.OnApplyTemplate();
}
void DatePickerWithValidation_DateValidationError(object sender, DatePickerDateValidationErrorEventArgs e)
{
e.ThrowException = false;

DateTime result;
if (!DateTime.TryParse(e.Text.Trim(), out result))
{
MessageBox.Show("Invalid date", "Error");
}
}
protected override void OnDateValidationError(DatePickerDateValidationErrorEventArgs e)
{
e.ThrowException = false;

base.OnDateValidationError(e);
}

I know, I know... I just need the "override" function, not both of these... but I was trying anything by this
point !!!

When I used this code, I entered my invalid date, it threw an exception... and THEN ran my two "DateValidationError"
functions, which tell the DatePicker not to... errrr.. throw an exception.

I've looked at the "DatePicker.cs" source code, where the exception is thrown by the DateTime.Parse function:

private DateTime? ParseText(string text)
{
DateTime newSelectedDate;

// TryParse is not used in order to be able to pass the exception to the TextParseError event
try
{
newSelectedDate = DateTime.Parse(text, DateTimeHelper.GetDateFormat(DateTimeHelper.GetCulture(this)));
....
}
catch (FormatException ex)
{
....
}

Problem is, this code only checks for a FormatException exception, but even though my Output window suggests
that a "System.FormatException" has occurred, the catch(...) code does not get run:

A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
Additional information: String was not recognized as a valid DateTime.

I also tried to replace this "DateTime.Parse" with a "DateTime.TryParse", and to replace the catch with
catch (Exception ex)

but each of these just makes the exception get thrown elsewhere, on the "base.OnLostFocus" function (which I can't step into):

public sealed partial class DatePickerTextBox : TextBox
{
...
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
ChangeVisualState(true);
}

I surrender...
Is this a bug, or am I missing something ?

I just want Forgive me, perhaps I'm missing something... but how do I get the new WPFToolkit DataPicker to NOT throw an exception, and crash,
when I type in an invalid date (eg 17/18/2010), then make the control lose focus ?

I tried declaring a new UserControl, based on the DatePicker control, and adding whatever events I could think of to catch such an
event, but none seem to prevent the Exception from being shown.

For example:

public class DatePickerWithValidation : DatePicker
{
public override void OnApplyTemplate()
{
this.DateValidationError += new EventHandler<DatePickerDateValidationErrorEventArgs>(DatePickerWithValidation_DateValidationError);
base.OnApplyTemplate();
}
void DatePickerWithValidation_DateValidationError(object sender, DatePickerDateValidationErrorEventArgs e)
{
e.ThrowException = false;

DateTime result;
if (!DateTime.TryParse(e.Text.Trim(), out result))
{
MessageBox.Show("Invalid date", "Error");
}
}
protected override void OnDateValidationError(DatePickerDateValidationErrorEventArgs e)
{
e.ThrowException = false;

base.OnDateValidationError(e);
}

I know, I know... I just need the "override" function, not both of these... but I was trying anything by this
point !!!

When I used this code, I entered my invalid date, it threw an exception... and THEN ran my two "DateValidationError"
functions, which tell the DatePicker not to... errrr.. throw an exception.

I've looked at the "DatePicker.cs" source code, where the exception is thrown by the DateTime.Parse function:

private DateTime? ParseText(string text)
{
DateTime newSelectedDate;

// TryParse is not used in order to be able to pass the exception to the TextParseError event
try
{
newSelectedDate = DateTime.Parse(text, DateTimeHelper.GetDateFormat(DateTimeHelper.GetCulture(this)));
....
}
catch (FormatException ex)
{
....
}

Problem is, this code only checks for a FormatException exception, but DateTime.Parse doesn't seem to be throwing this type
of exception, so it doesn't get handled. Having said that, my Output window suggests perhaps it is this type of Exception,
or it's being thrown elsewhere, so isn't being caught:

A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
Additional information: String was not recognized as a valid DateTime.

I also tried to replace this "DateTime.Parse" with a "DateTime.TryParse", and to replace the catch with
catch (Exception ex)

but each of these just makes the exception get thrown elsewhere, on the "base.OnLostFocus" function (which I can't step into):

public sealed partial class DatePickerTextBox : TextBox
{
...
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
ChangeVisualState(true);
}

I also tried changing the Binding on this control to a string (rather than DateTime) variable, then removing the
binding completely, but exactly the same Exception problem occurred.

I surrender...
Is this a bug, or am I missing something ?
Comments: ** Comment from web user: ashishright **

Microsoft have to do something or suggest us how to handle this situation because of only this issue and end user can get easily pissed off... and all your effort in your entire project will become zero... :(

Commented Issue: Calendar doesn't lose focus [11194]

skst — Wed, 06 Mar 2013 15:55:59 GMT

Place a Calendar and a TextBox inside a Grid. Now select a date in the calender and then click on the TextBox to enter some text. You'll notice that you have to click twice in the TextBox that it receives input focus.
This "bug"??? exists only in WPF. In Silverlight the Control works as expected. :-)
Comments: ** Comment from web user: skst **

"Thanks for reporting this issue. We have filed a bug in our internal database to fix this."

Three years later. WPF 4.5 is out. Any update on when this will be fixed?

Commented Issue: ComboBox DisplayMemberPath binding is broken by Themes BureauBlue and WhistlerBlue [10129]

pj0705 — Mon, 04 Mar 2013 22:16:07 GMT

I have a comboBox like so:
<ComboBox Grid.Row="2" Grid.Column="1" Name="cboILWPortfolio"
ItemsSource="{Binding ILWPortfolioList.ILWPortfolios}"
DisplayMemberPath="ILWPortfolioName"
SelectedValuePath="ILWPortfolioID"
SelectedItem="{Binding ILWPortfolioList.SelectedILWPortfolio}">
</ComboBox>

The ItemsSource is bound to an ObservableCollection. Normally this displays a list of portfolios nicely in my dropdown list. When I apply BureauBlue or WhistlerBlue themes, I no longer see the portfolio names. Instead I see the Data Type of what the ComboBox ItemsSource is bound to.
Comments: ** Comment from web user: pj0705 **

Open the Bureau Blue theme file and change the following line in the comboboxitem style

To
<ContentPresenter x:Name="contentPresenter" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}"/>
That should retain the theme and also fix the issue.

Thanks !!

Commented Issue: AutoCompleteBox Copy-Cut are always disabled [17344]

DotNetMastermind — Fri, 01 Mar 2013 12:45:46 GMT

AutoCompleteBox moves cursor at the end of line by right mouse click.

Steps to reproduce:
1. Add to Window AutoCompleteBox (<Grid><cc:AutoCompleteBox /></Grid>)
2. Run application
3. Enter some text
4. Select all entered text
5. Right mouse click by selected text
6. You can use "Paste" menu only

Expected behavior:
User should be able to copy-cut text from AutocompleteBox via ContextMenu. Now it works throw keyboard only.
Comments: ** Comment from web user: DotNetMastermind **

I also got this issue and solved it without the need to recompile the WPFToolkit-Library.

I created a class which inherits from the AutoCompleteBox and write some code to circumvent the described issue :

```
public class MyAutoCompleteBox : AutoCompleteBox
{
private int selectionStart, selectionLength;
public TextBox TextBoxPart { get; set; }

public MyAutoCompleteBox()
{
this.PreviewMouseRightButtonUp += (os, ea) =>
{
this.selectionStart = TextBoxPart.SelectionStart;
this.selectionLength = TextBoxPart.SelectionLength;
};
}

protected override void OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs e)
{
base.OnIsKeyboardFocusWithinChanged( e );

this.TextBoxPart.SelectionStart = this.selectionStart;
this.TextBoxPart.SelectionLength = this.selectionLength;
}

public override void OnApplyTemplate()
{
base.OnApplyTemplate();

var textBox = this.GetTemplateChild( "Text" ) as TextBox;

if (textBox != null) this.TextBoxPart = textBox;
}
}
```

The additional benefit of this new class is, that you have access to the TextBox whenever you need it (in the WPFToolkit the TextBox of the AutoCompleteBox is only internal NOT public).

You can use the new class like the AutoCompleteBox with all the features working.

Created Issue: DataPointStyle not applyed [19233]

abbategiuseppe — Wed, 23 Jan 2013 15:42:01 GMT

I tried to add a label on a ColumnDataPoint but when set DataPointStyle on a ColumnSeries.DataPointStyle , the column is not visible, but if modify ControlTemplate -> Border Opacity from 0 to 1 , the column is visble but color is the same for all series (Orange ) that i add to chart :

<style>
</style>

Why? And how can i change controltemplate to add Label on Top of column without modify the beavhiour of chart?

Commented Issue: Chart DateTimeAxis: binding IntervalType freeze .Net and appli on Window.Show [10935]

claudiuconstantin — Wed, 26 Dec 2012 14:12:21 GMT

Hi,
 
When binding the IntervalType property of the DateTimesAxis to a ViewModel class, it crashed .Net when trying o refresh the preview area. 
 
If I escape the refresh of the preview and launch the debugger, the Window never opens.
 
Here a code sample of the xaml (DataContext is set to the ViewModel class before the window.show in the app startup :
 
 <WPFToolkitCharting:Chart Grid.Row="1">
 <WPFToolkitCharting:Chart.Axes>
 <WPFToolkitCharting:LinearAxis Orientation="Y"/>
 <WPFToolkitCharting:DateTimeAxis Orientation="X" 
 ShowGridLines="True" 
 IntervalType="{Binding DataSetChartVM.IntervalType}" Interval="1" />
 </WPFToolkitCharting:Chart.Axes>
 <WPFToolkitCharting:Chart.Series>
 <WPFToolkitCharting:LineSeries Title="{Binding Name}" IndependentValueBinding="{Binding Date}" 
 DependentValueBinding="{Binding Value}" ItemsSource="{Binding Items}"/>
 </WPFToolkitCharting:Chart.Series>
 </WPFToolkitCharting:Chart>
 
I did not get the chance yet to run this with the Tollkit source to this what happens.
 
Any thought ?
 
Cheers

Comments: ** Comment from web user: claudiuconstantin **

I encountered this issue too. What I noticed:
- This only happens when setting the "IntervalType" by using a Binding;
- If the "Interval" attribute is present and the "IntervalType" is missing the issue is still happening;

Commented Issue: Incorrect set AutoCompleteBox.SelectedItem on Window.Loaded [16172]

jcc74 — Tue, 11 Dec 2012 13:15:34 GMT

When i set AutoCompleteBox.SelectedItem on Button.Click all works fine(AutoCompleteBox.SelectedItem and AutoCompleteBox.Text changed), but if i set AutoCompleteBox.SelectedItem on Window.Loaded (AutoCompleteBox.Text is empty).
 
<DataTemplate x:Key="AutoCompletePartnerTemplate">
 <TextBlock Text="{Binding Path=DirName}"/>
 </DataTemplate>
 
<my:AutoCompleteBox Name="AutoCompleteBox1" ItemTemplate="{StaticResource AutoCompletePartnerTemplate}" ItemsSource="{StaticResource Dir11}" ValueMemberBinding="{Binding DirName}" FilterMode="Contains" IsTextCompletionEnabled="True" />
 
 var q = (IEnumerable<Dir1>)(AutoCompleteBox1.ItemsSource).AsQueryable();
 var tDir = q.FirstOrDefault<Dir1>(q1 => q1.DirId.Equals(OwnerId));
 AutoCompleteBox1.SelectedItem = tDir;
 
http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/e2cfb956-1cdb-403f-a47d-81128cb3bc07
Comments: ** Comment from web user: jcc74 **

Hi,
Same for me...
Any workaround about it? I've been googling and digging for some days,
and nothing's pretty clean to make it work. It becomes annoying.
Any chance to get it fixed some day, or to get any pretty clean work around?
Thank you.

Created Issue: Charts: Gridlines display behind Columns after drill-down [19006]

klacount — Tue, 04 Dec 2012 23:02:29 GMT

I have a WPF Chart control with gridlines on the Linear (Y) axis and have set IsSelectable to true so that I can click on a column and drill into the data. On the selection changed command, I remove the existing column series and add the new series based on the selected column thus achieving a drill down report.

The only thing not working correctly is the gridlines now appear in front of the column data points.

Any ideas?