We are using MVVM Prism for our application, and there are three assemblies in our project.
myWPF (general stuffs and user configuration)
myApp (knows only myWPF)
myModules (knows only myWPF)

Does Telerik provide any user configuration object for storing/retrieving user preferences such as application theme, docking layout, default selection of a control in a module, and etc...

Thanks

Hello

I have only few items that I wanna add to backstage and all are simple buttons with commands. I don't need the right side of backstage. Is there a way to hide it?

Hi,

We are using some RadGridView in multiple RadDocking Panes.
Thoses grids have over 1000 items and we got an serious performance issue when switch between panes (hosted in DocumentHost). It takes about 1-2sec before displaying the pane.

I don't understand since in Q2 2011 it works pretty much. But now in Q3 2011 it's really slow.

The grid is quite simple :


I've tested to remove the GridViewCheckBoxColumn, without luck.

When me application window is sized to the minimum in order to display only 1 row in the grid, it's really fast, but in full screen (displaying about 30 items visible) it's really slow...

Any help ?

Thanks.

How to change the gridview selected row backcolor,forecolor and font style.

Hi,

I'm wondering whether there is such a Control in the WPF suite to enable me to view powerpoint / openoffice impress slideshows in my WPF application. If not, does anyone has any suggestions how to go about doing this within my application, rather than spawning the powerpoint viewer as a separate full screen application? Thanks for your help.

Hello, I am having some serious issues here.

I have defined this grid:


Using a bog standard ListView, this was performing just fine - but now I am having UI hangs while scrolling (when scrollmode was realtime) and I get a black background inside the window border while resizing..

What am I missing?

  // Regards, Morten

I have a collection view source with a grouping to which a GridView is bound.  While scrolling, the group header scrolls with the other records.  Is it possible to have the grouped header fixed while it's records are visible in the visibile scroll area?

Hello, I have been poking around the documentation, trying to find out if "ShowDistinctFilters" does what I want..
However, all I am able to find is "Gets or sets a value indicating whether this column will show distinct filters.".
That is taken from http://www.telerik.com/help/wpf/p_telerik_windows_controls_gridviewcolumn_showdistinctfilters.html

Is there a more helpful documentation available somewhere I am not finding?

What I want, by the way, is making a DateTime column not show every single time that is listed in the column with a checkbox, but still give the user the ability to filter using a date/time picker (from-to)

  // Regards, Morten

After adding or removing rows from a DataTable, clicking on a row throws a RowNotInTableException.

I can perform other actions such as selecting the row using the row selector checkbox, but if I click on the row anywhere outside the checkbox, I get the error (looks like its on the cell mouse down event).

The error sometimes doesn't get thrown but usually does (threading issue?).

System.Data.RowNotInTableException was unhandled by user code
  Message=This row has been removed from a table and does not have any data.  BeginEdit() will allow creation of new data in this row.
  Source=System.Data
  StackTrace:
       at System.Data.DataRow.GetDefaultRecord()
       at System.Data.DataRow.get_Item(String columnName)
       at System.Data.DataRowExtensions.Field[T](DataRow row, String columnName)
       at lambda_method(Closure , DataRow )
       at Telerik.Windows.Data.FuncExtensions.<>c__DisplayClass1`2.<ToUntypedFunc>b__0(Object item) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Extensions\FuncExtensions.cs:line 24
       at Telerik.Windows.Data.QueryableCollectionViewGroup.FindLastLevelGroupByItem(Object item) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Data\Grouping\QueryableCollectionViewGroup.cs:line 536
       at Telerik.Windows.Controls.GridView.GridViewDataControl.GetRowForItem(Object item, Boolean forceGroupExpand) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 3226
       at Telerik.Windows.Controls.GridView.GridViewDataControl.get_CurrentCell() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 764
       at Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Cells\GridViewCell.cs:line 404
       at System.Windows.UIElement.OnMouseLeftButtonDownThunk(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.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.RaiseTrustedEvent(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, WindowMessage 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, Int32 numArgs)
       at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
  InnerException:

I have a pretty simple use case: I have a grid populated from a database, with a column for each field.

I want the user to be able to add new records, and to edit existing records.

My problem is the fields that are part of the primary key.  I need these to be editable, when the user is adding a new record, but to not be editable, when the user is editing an existing record.

Seems like a pretty common problem, but I've not been able to figure out how to do it.

If it matters, I'm using MVVM and my records are in an ObservableCollection.  My ViewModel picks up on changes to the collection with a NotifyCollectionChangedEventHandler on the collection, and changes to individual records with a PropertyChangedEventHandler on each record.  I don't actually have any GUI events being handled in the codebehind.