Questions on UI for WPF Forum

1 answer

536 views

GridViewComboBoxColumn ItemsSource Binding

I am trying to do something extremely simple.
I am trying to populate a GridViewComboBoxColumn with a list of numbers ranging from 1 - 16.
This is what I have so far:

<Window x:Class="Login"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:systhreading="clr-namespace:System.Threading;assembly=mscorlib"

xmlns:myNamespace="clr-namespace:myNamespace"

xmlns:primatives="clr-namespace:System.Windows.Controls.Primitives;assembly=PresentationFramework"

xmlns:sys="clr-namespace:System;assembly=mscorlib"

Title="Login" Height="768" Width="1024" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">

<Window.Resources>

<Style TargetType="Label">

<Setter Property="Width" Value="100"></Setter>

</Style>

<Style TargetType="TextBox">

<Setter Property="Width" Value="100"></Setter>

</Style>

<myNamespace:TestUser x:Key="testUser"/ >

<x:Array x:Key="PortValues" Type="sys:Int32">

<sys:Int32>1</sys:Int32>

<sys:Int32>2</sys:Int32>

<sys:Int32>3</sys:Int32>

<sys:Int32>4</sys:Int32>

<sys:Int32>5</sys:Int32>

<sys:Int32>6</sys:Int32>

<sys:Int32>7</sys:Int32>

<sys:Int32>8</sys:Int32>

<sys:Int32>9</sys:Int32>

<sys:Int32>10</sys:Int32>

<sys:Int32>11</sys:Int32>

<sys:Int32>12</sys:Int32>

<sys:Int32>13</sys:Int32>

<sys:Int32>14</sys:Int32>

<sys:Int32>15</sys:Int32>

<sys:Int32>16</sys:Int32>

</x:Array>

</Window.Resources>

<DockPanel DataContext="{Binding Source={StaticResource testUser}}">

<StackPanel DockPanel.Dock="Top" VerticalAlignment="Stretch" HorizontalAlignment="Center">

<telerik:RadGridView Name="RadGridView1" ItemsSource="{Binding FooBars}">

<telerik:RadGridView.Columns>

<telerik:GridViewComboBoxColumn

Header="Something"

ItemsSource="{Binding Source={StaticResource PortValues}}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</StackPanel>

</DockPanel>

</Window>

This is my "TestUser" and "FooBar" classes that I am using for testing:

Imports System.ComponentModel

Imports System.Collections.ObjectModel

Public Class TestUser

Private _fooBars As ObservableCollection(Of FooBar)

Public Property FooBars As ObservableCollection(Of FooBar)

Get

Return _fooBars

End Get

Set(ByVal value As ObservableCollection(Of FooBar))

_fooBars = value

End Set

End Property

Public Sub New()

_fooBars = New ObservableCollection(Of FooBar)

For i As Integer = 0 To 10

_fooBars.Add(New FooBar("FooBar" + i.ToString, i))

Next

End Sub

End Class

Public Class FooBar

Public Property Value As Integer

Public Property Name As String

Public Sub New(ByVal name As String, ByVal value As Integer)

Me.Value = value

Me.Name = name

End Sub

End Class

For some reason I cannot get the GridViewComboBoxColumn to populate with the "PortValues" (I can't even get it to appear).
What am I doing wrong?!?!

Thanks a lot for your help!

-Newbie

GridView

answered on 17 Feb 2011

1 answer

77 views

RadCalendar.IsValidFirstDayOfWeek - throw exception

RadCalendar c = new RadCalendar();

c.FirstDayOfWeek = null;

See the method (RadCalendar.):

private static bool IsValidFirstDayOfWeek(object value)

{

DayOfWeek? nullable = (DayOfWeek?) value;

return (Enum.IsDefined(typeof(DayOfWeek), nullable) || !nullable.HasValue); // ???

}

I getting "throw ArgumentNullException: Value cannot be null.Parameter name: value"

Maybe code change to:

private static bool IsValidFirstDayOfWeek(object value)

{

DayOfWeek? nullable = (DayOfWeek?) value;

return (!nullable.HasValue || Enum.IsDefined(typeof(DayOfWeek), nullable.Value));

}

Its really working without exceptions!

Calendar

answered on 17 Feb 2011

2 answers

203 views

[Solved] XamlParseException while ExportToImage

Hello!

I have a problem: I want to get image from chart on service. I use ExportToImage method to do this. By default - it's work fine. But when I try to apply any style to the chart (i.e. set Axis title style for changing font size, I using Axis.AxisStyles.TitleStyle property) I get following error:

WcfDataService.Code.PdfGenerator - Couldn't get chart snapshot.
System.Windows.Markup.XamlParseException: '11' is not a valid value for the 'System.Windows.Documents.TextElement.FontSize' property on a Setter. ---> System.ArgumentException: '11' is not a valid value for the 'System.Windows.Documents.TextElement.FontSize' property on a Setter.
   at System.Windows.Setter.Seal()
   at System.Windows.SetterBaseCollection.Seal()
   at System.Windows.Style.Seal()
   at System.Windows.StyleHelper.UpdateStyleCache(FrameworkElement fe, FrameworkContentElement fce, Style oldStyle, Style newStyle, Style& styleCache)
   at System.Windows.FrameworkElement.OnStyleChanged(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, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.StyleHelper.ApplyTemplatedParentValue(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, DependencyProperty dp, FrameworkElementFactory templateRoot)
   at System.Windows.StyleHelper.InvalidatePropertiesOnTemplateNode(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, Boolean isDetach, FrameworkElementFactory templateRoot)
   at System.Windows.FrameworkTemplate.InvalidatePropertiesOnTemplate(DependencyObject container, Object currentObject)
   at System.Windows.FrameworkTemplate.HandleBeforeProperties(Object createdObject, DependencyObject& rootObject, DependencyObject container, FrameworkElement feContainer, INameScope nameScope)
   at System.Windows.FrameworkTemplate.<>c__DisplayClass6.<LoadOptimizedTemplateContent>b__3(Object sender, XamlObjectEventArgs args)
   at System.Xaml.XamlObjectWriter.OnBeforeProperties(Object value)
   at System.Xaml.XamlObjectWriter.Logic_CreateAndAssignToParentStart(ObjectWriterContext ctx)
   at System.Xaml.XamlObjectWriter.WriteStartMember(XamlMember property)
   at System.Xaml.XamlWriter.WriteNode(XamlReader reader)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
   --- End of inner exception stack trace ---
   at System.Windows.Markup.XamlReader.RewrapException(Exception e, Uri baseUri)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
   at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
   at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
   at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
   at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at Telerik.Windows.Controls.Charting.ChartArea.MeasureOverride(Size availableSize) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Chart\ChartArea\ChartArea.Core.cs:line 1318
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at Telerik.Windows.Controls.RadDockPanel.MeasureOverride(Size availableSize) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Panels\RadDockPanel.cs:line 170
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at Telerik.Windows.Controls.Charting.ScalePanel.MeasureOverride(Size availableSize) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Chart\ScalePanel.cs:line 70
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at Telerik.Windows.Controls.RadChart.MeasureOverride(Size availableSize) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Chart\RadChart.cs:line 910
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)

Can you help me? What can I do to fix this problem?

Thanks, Anatoly Chekh.

Chart

answered on 17 Feb 2011

0 answers

158 views

Debugging is possible?

Hello Telerik Team,
I have some problem in Debugging.Here in my WPF project using telerik rad controls.if i am using windows application mean easily find out error using line by line debugging.

but i am not able to debug wpf project. is it any problem when i am using telerik controls?

General Discussions

asked on 17 Feb 2011

1 answer

126 views

Drag And Drop

I want to prevent dragging items to the same level as the root, how do I do this?

thanks.

TreeView

answered on 17 Feb 2011

1 answer

131 views

[Solved] Problem with uninstalling

Greetings,

I am trying to upgrade my telerik wpf controls to the latest build according to this article: http://www.telerik.com/help/silverlight/installation-upgrading-from-trial-to-developer-license.html

So first I want to remove telerik controls from gac. And here is the problem. In my VS 2010 I can see telerik libraries in .NET tab when adding a reference (see references.png). But when I try to run gacutil -u Telerik.Windows.Controls.dll as metioned here: http://www.telerik.com/help/wpf/installation-deployment-add-remove-to-gac-wpf.html I get this message:

No assemblies found matching: Telerik.Windows.Controls.dll
Number of assemblies uninstalled = 0
Number of failures = 0

So how can I upgrade my telerik radcontrols for wpf?

Thank you in advance
Miro

General Discussions

answered on 17 Feb 2011

2 answers

133 views

Appointments not update on view when source is updated

I have added a handler to VisibleRangeChanged event to query the database for appointments within the new date range. However, the appointment source that is updated does not get reflected on the current view. If I switch to another view and back again, I see the appointments.

Is there a way to fix this so that I see my appointments when the AppointmentSource is udpated?

Thanks,
Rod

ScheduleView

answered on 17 Feb 2011

7 answers

705 views

[Solved] Grid Column Filter auto-resizing and incorrect scrolling

This is happening on what appears to be a ListBox inside the filter that contains a CheckBox element for each distinct RowValue in the column.
When scrolling, the width of the ListBox changes depending upon the size of the widest checkbox in the list.

Also, the only way to use the scroll bar is to click either the up or down arrow, wait for the ListBox to resize, then click the arrows again. Attempting to move the actual bar of the ScrollBar does not scroll the ListBox with CheckBoxes, it instead scrolls the bar of the GridView itself.

Is there a way to set the ListBox width to that of the widest CheckBox?

GridView

answered on 17 Feb 2011

4 answers

164 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

182 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