I've read the documentation on sampling but it's still not clear to me exactly what RadChart is doing. For example I have a Scatter chart with approximately 3000 data points. The data points are spread, fairly evenly, across approximately 6 hours of time along the X axis. In other words, data is not disproportionately bunched anywhere along the X axis. It's pretty evenly spread out. The Y axis values range from approximately 60 to 66, with no particular pattern. Can you tell me exactly how RadChart would sample this data, assuming I select a sampling value of say 300 (1/10 of the data). I have not specified the method of sampling (average, min, max etc.), because I don't really know which would be best in my case.

Thank you.

Hi telerik,

I wish to abuse the chart.
Since ChartLegend is a separate object referenced by the RadChart, I thought I could re-use the legend object to obtain a single legend for several RadCharts. This way I wanted to achieve the interactivity effects of hovering over graphs / legends and seeing the highlight in the other.

My starting point was four charts, where the first three were real plots (with hidden legend) where as the last was a RadChart with hidden ChartArea. That worked well, but with no interactivity.

If I create the ChartLegend object first and reference it from the remaining three RadCharts, I do get the legend headers in the ChartLegend, but still no interactivity.

Is this even possible? Or should I just 'accept' the separation and 'manually' handle the highlighting? Can you send me in a direction where I might get lucky?

Thanks,

Anders, Denmark

Hi,

Just wondering, can I modify background color of a disable GridViewCell instead of grey can I change it to other color. I tried using data trigger and directly set background color to white however it's not working. Is there a way to achieve this?

Type	Description
Air	Air
Fire	Fire
Land
Water	Water
Land

Regards,
Howell

Hello,

I have difficulty in understanding and setting up my calendar appointments.
I am developing an application with a table below (in T_RendeVous SQLSERVER) to RDV and WPF.

1 / I can not load my items in the database for display in the calendar

2 / I can not find the form for adding / modifying / deleting appointment. and save them in my database.

I want to know, what paramete can i loading from schedule ?

Thank you for making me a return.

Telerik RadControls for WPF Q1 2011 SP1

I have a grid hierarchy, I want to Export to Exel.
I used this code, but I don't have anything of the Grid Hierarchy in Excel


I read foros where the controls don't support this Export to Excel.
Please, really I need your help.

I have a radGridView, when the radGridView SelectionChanged event fires off, I need to set a combo to IsDropDownOpen = true;  

The issue is that the IsDropDownOpen property is being set but the combo will not remain dropped down when the grid selection is changed using a mouse click.

The combo will remain dropped down when the grid selection is changed using the keyboard.

Either selection method calls the same method to set the IsDropDownOpen property.

I am using the 2011 - Q3 version of the wpf controls.

Any Ideas?

My terminology is probably off here but what I need to do is to be able to make a pane that is currently minimized (not pinned and thus not visible except for the tab header) active (not pinned but it's contents now visible just as though I had moused over the tab). What I have is something kind of like the output tab of visual studio where I do a build and I want the output tab to be shown - currently I'm just calling PinAllPanes() in order to make sure the pane is shown but this isn't what I want (I don't want to pin the pane and I don't want to have to pin other panes in the group. I if the RadPane.IsActive setter were public I believe that would give me what I want, but, it's not.

Any help would be appreciated.

In TeeListView if I set CanUserInsertRowS = true and ShowInsertRow = true when I actually insert a row the new item is always inserted at the top level.  Is there a way to insert it as a child of the selected node or at the same level as the selected node?

I have to refresh the specific row. But I don't want to refresh the whole gridview.

Hi,

I'm trying to use a RichTextBox in a RadTreeListView. Below is the xaml



When i run the application, the content renders properly the first time but when i select any row, I'm getting the following exception.

System.InvalidCastException was unhandled by user code
  Message=Unable to cast object of type 'System.Windows.Documents.Paragraph' to type 'System.Windows.UIElement'.
  Source=Telerik.Windows.Controls.GridView
  StackTrace:
       at Telerik.Windows.Controls.SelectableTextBoxDragHandler.OnMouseLeftButtonDown(Object sender, MouseButtonEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\TreeListView\SelectableTextBoxDragHandler.cs:line 28
       at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       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.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)
       at System.Windows.Input.InputManager.ProcessStagingArea()
       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)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
       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.Window.ShowHelper(Object booleanBox)
       at System.Windows.Window.ShowDialog()
  InnerException:


Earlier i used the same RichTextBox in a ListView, it worked fine. After changing to RadTreeListView I'm facing issues.

Please help!