Questions on UI for WPF Forum

4 answers

154 views

[Solved] Using NumericUpDown for selecting a specific sequence of values - and IsReadOnly

I have an integer type property, which may only have specific values in a infinite sequence: 4, 6, 8, 12, 16.... (the sequence can be made finite because big values will never be used in this reality).

Q1: I would like the mouse wheel and the buttons to select the next valid value for the user. I saw this post (http://www.telerik.com/community/forums/wpf/numeric-up-down/use-numericupdown-as-multiplier.aspx) in the forum and figured that my problem cannot be solved either. Is this feature planned for any release?

Q2: The numericupdown should be readonly under certain circumstances (most other input-fields are textboxes and they are made readonly, not disabled). Is there some setting to remove the possibility of user input from numericupdown besides enabled=false?

Thanks,
Inger Marie

NumericUpDown

answered on 17 Feb 2011

1 answer

168 views

Error when displaying ScheduleView

This happens in version 2010.3.1314.40



It happens in every view EXCEPT the timeline view. 



Scenario:

Override the default double click behavior of an Appointment and navigate to some other screen. That equates to overlaying another UIElement over the top of the scheduleview and then removing it to expose the scheduleview again. That's when the error occurs.





Value cannot be null.

Parameter name: ancestor

Details:

System.ArgumentNullException: Value cannot be null.

Parameter name: ancestor

at System.Windows.Media.Visual.TransformToAncestor(Visual ancestor)

at Telerik.Windows.Controls.ScheduleViewBase.FindDistanceBetweenTwoElements(FrameworkElement element1, FrameworkElement element2)

at Telerik.Windows.Controls.ScheduleViewBase.CreateDragCueForItem(AppointmentItem item)

at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()

at Telerik.Windows.Controls.CollectionExtensions.AddRange(IList list, IEnumerable items)

at Telerik.Windows.Controls.DragDropHelper.CreateVisualCueForDrag(DragDropState state, AppointmentItem clickedItem)

at Telerik.Windows.Controls.DragDropHelper.SetupDragCueForDrag(DragDropOptions options, DragDropState state, AppointmentItem draggedAppointment)

at Telerik.Windows.Controls.DragDropHelper.StartDrag(DragDropOptions options, DragDropState state, AppointmentItem draggedAppointment)

at Telerik.Windows.Controls.DragDropHelper.BeginDragResize(DragDropOptions options, AppointmentItem draggedAppointment, Boolean isResizing)

at Telerik.Windows.Controls.DragDropHelper.OnAppointmentItemDragQuery(Object sender, DragDropQueryEventArgs e)

at Telerik.Windows.Controls.DragDrop.DragDropQueryEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

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 Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.DragDropProvider_DragQuery(Object sender, DragDropQueryEventArgs e)

at Telerik.Windows.Controls.DragDrop.DragDropProviderBase.RaiseDragQuery()

at Telerik.Windows.Controls.DragDrop.WPFSimulatedDragDropProvider.TryStartDrag(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.SimulatedDragDropProvider.OnTrackedElementMouseMoveInternal(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.SimulatedDragDropProvider.OnCoverRectangleMouseMoveInternal(IMouseEventArgs e)

at Telerik.Windows.Controls.DragDrop.WPFSimulatedDragDropProvider.OnCoverRectangleMouseMove(Object sender, MouseEventArgs e)

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.MouseDevice.Synchronize()

at System.Windows.Input.MouseDevice.ChangeMouseCapture(IInputElement mouseCapture, IMouseInputProvider providerCapture, CaptureMode captureMode, Int32 timestamp)

at System.Windows.Input.MouseDevice.Capture(IInputElement element, CaptureMode captureMode)

at System.Windows.Input.Mouse.Capture(IInputElement element)

at System.Windows.Documents.Hyperlink.OnMouseLeftButtonDown(Object sender, MouseButtonEventArgs e)

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.Application.RunInternal(Window window)

at System.Windows.Application.Run()

at Metrix.UI.App.Main() in C:\Users\rodneyy\Documents\Visual Studio 2010\Projects\M530\Client\Metrix.UI\obj\Debug\App.g.cs:line 0

at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)

at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Threading.ThreadHelper.ThreadStart()

ScheduleView

answered on 16 Feb 2011

1 answer

143 views

Row span on expander column

Hi,

I'm working with the RadTreeListView however rather than displaying one row for each item in the expander column I'd like to display multiple rows and have the item in the expander column span those rows e.g.

| Item | Metric | Value 1 | Value 2 | Value 3 |
| > Item 1 | Width | 14 | 13 | 17 |
| | Height | 3 | 8 | 89 |
| > Item 2| Width | 34 | 89 | 22 |
| | Height | 33 | 58 | 92 |

I'm wondering whether anyone else has needed to do this and found a solutions or whether anyone would be able to point me in the right direction on which templates I need to amend.

Thanks,
Derek

TreeListView

answered on 16 Feb 2011

3 answers

178 views

ContainerBindingCollection Not Working WPF

Hi

Iam using RadTreeview Custom Control Then Cosuming the Control There is one button

When button is Clicked Create one node With Check box but Check box Came but not Selected

This is our Consume Page Xaml

<local

:TreeView x:Name="RadTreeView1" ToolTip="Enter Name" Height="500" Width="300"

ItemsOptionListType="CheckList" IsOptionElementsEnabled="True" >

</local:TreeView>

Then Click Event

private void AddItem_Click(object sender, RoutedEventArgs e)

{

List<TreeImageCollection> lstTreeImageCollection1 = new List<TreeImageCollection>();

TreeImageCollection objTreeImageCollection = new TreeImageCollection();

objTreeImageCollection.ImageID =

"200";

objTreeImageCollection.ImageSource =

"../Images/iDropdownArrowDownHOT.png";

objTreeImageCollection.ToolTip =

"Hi This my Image ";

//objTreeImageCollection.Alignment = ImageAlignment.Left;

lstTreeImageCollection1.Add(objTreeImageCollection);

RadTreeView1.AddNode(

"0", "4", "Item ggg004", null, lstTreeImageCollection1, ToggleState.On, false, false, false);

}

Regards
SenthilNathan.S

TreeView

answered on 16 Feb 2011

1 answer

115 views

is there a Layout Control?

Hi, as the titles reads. Is there a Layout Control that can contains my items and arrange them?

Thanks!

General Discussions

answered on 16 Feb 2011

1 answer

113 views

[Solved] Drop ItemSource

I have tried casting this several different ways, but i am still relatively new to the telerik world. I have a RadTreeView that i am trying to drop a sub item into a list box... But when i cast the item from the payload object, it does not return a value... any help would be greatly appreciated!

Thanks,
Brian

DragAndDrop

answered on 16 Feb 2011

2 answers

180 views

[Solved] Series and Transparency using the default colors

Hi, can I set the set the transparency of all data series in the chart ? (without affecting the pallet from telerik summer theme)

Best regards
kristján

Chart

answered on 16 Feb 2011

1 answer

154 views

Disable items

Does anyone know how I can disable some of the items in the combobox?

ComboBox

answered on 16 Feb 2011

8 answers

162 views

Wpf setting problem

When i on visual studio 2010 , i click new project. After i choose C# RadControls WPF application , it will appear a window let me to choose the components and theme but it does not have any WPF setting to allow us to choose. Because of it , i cannot create the WPF application to use.

General Discussions

answered on 16 Feb 2011

13 answers

199 views

Grouping Doesn't Works

Hi, i Have a gridview binded in code-behind to a list of entities, and the group panel is visible. but i cant drag the column header to the group panel. im missing something.???

btw im using it inside a elementhost.

GridView

answered on 16 Feb 2011