Questions on UI for WPF Forum

1 answer

104 views

Hi,

In my rad grid view i have set CanUserReorderColumns to true.But it doesn't work in some situations. Could you please tell us that where to drop the column in order to be dropped.

If i drag a column and drop it in half of the column part then sometimes it is dropped and sometimes it doesn't work.

Also there is one more requirement from our client, they want the reordering of column with some sliding effect like ( EX. in our windows -> go to my computer -> open details view then reorder columns , there is some visual indication of reordering .. see attached image file) .

Looking forward for your reply.

GridView

answered on 31 May 2013

2 answers

533 views

RadRadialGauge in RadTileView's content template causes SyncFlush[ UCEERR_RENDERTHREADFAILURE (Exception from HRESULT: 0x88980406) ]

I am seeing SynFlush issue when I embed RadialGauge inside the RadTileView.ContentTemplate, which is RadFluidContentControl.LargeContent. Pasted the XAML below.

Question:
Is this illegal use of RadialGague? If not, is there a way to get around this issue somehow?

The Failure:
UCEERR_RENDERTHREADFAILURE (Exception from HRESULT: 0x88980406)
at System.Windows.Media.Composition.DUCE.Channel.SyncFlush()

System.Runtime.InteropServices.COMException occurred
HResult=-2003303418
Message=UCEERR_RENDERTHREADFAILURE (Exception from HRESULT: 0x88980406)
Source=PresentationCore
ErrorCode=-2003303418
StackTrace:
at System.Windows.Media.Composition.DUCE.Channel.SyncFlush()
InnerException:
-----------------------------

Scenario:

<UserControl x:Class="TelerikTest.DeviceList"

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

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

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:tileview="clr-namespace:Telerik.Windows.Controls.TileView;assembly=Telerik.Windows.Controls.Navigation">

<UserControl.Resources>

<SolidColorBrush x:Key="AccentBrush" Color="White"/>

<Style x:Key="TileItemHeaderStyle" TargetType="tileview:TileViewItemHeader">

<Setter Property="Foreground" Value="#FFFFFF" />

<Setter Property="FontSize" Value="14" />

<Setter Property="FontFamily" Value="Segoe UI" />

</Style>

<Style TargetType="telerik:RadTileViewItem">

<Setter Property="Padding" Value="3" />

<Setter Property="BorderBrush" Value="Transparent" />

<Setter Property="Background" Value="Transparent" />

<Setter Property="BorderThickness" Value="0" />

<Setter Property="HeaderStyle" Value="{StaticResource TileItemHeaderStyle}" />

</Style>

<Style TargetType="telerik:RadTileView" >

<Setter Property="PreservePositionWhenMaximized" Value="True" />

<Setter Property="telerik:TileViewPanel.IsVirtualized" Value="True" />

<Setter Property="IsAutoScrollingEnabled" Value="True" />

<Setter Property="TileStateChangeTrigger" Value="SingleClick" />

<Setter Property="MinimizedColumnWidth" Value="308" />

<Setter Property="MinimizedRowHeight" Value="193" />

<Setter Property="RowHeight" Value="187" />

<Setter Property="ColumnWidth" Value="277" />

<Setter Property="ColumnsCount" Value="4" />

</Style>

<DataTemplate x:Key="contentTemplate">

<telerik:RadFluidContentControl ContentChangeMode="Manual"

State="Normal"

TransitionDuration="0:0:.5">

<telerik:RadFluidContentControl.Content>

<Border Background="Black">

<Grid Margin="20 10">

<StackPanel>

<TextBlock Margin="0 0 0 5"

FontFamily="Segoe UI"

FontSize="24"

FontWeight="Light"

Foreground="#fff"

Text="Duration" />

<TextBlock FontSize="14"

Text="{Binding Duration}" />

<Border Height="2"

Margin="0 5"

/>

<TextBlock Margin="0 0 0 5"

FontFamily="Segoe UI"

FontSize="24"

FontWeight="Light"

Foreground="#fff"

Text="Price" />

<TextBlock FontSize="14"

Text="{Binding Price}" />

</StackPanel>

<!--<Image HorizontalAlignment="Right"

VerticalAlignment="Bottom"

Source="{Binding Icon}"

Stretch="None" />-->

</Grid>

</Border>

</telerik:RadFluidContentControl.Content>

<telerik:RadFluidContentControl.LargeContent>

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*" />

</Grid.ColumnDefinitions>

<telerik:RadRadialGauge x:Name="radialGauge" Height="100" Width="100">

<telerik:RadialScale Name="scale"

LabelRotationMode="None"

IsInteractive="True"

MajorTickOffset="-0.015*"

MiddleTickOffset="-0.015*"

MinorTickOffset="-0.015*">

<telerik:RadialScale.Ranges>

<telerik:GaugeRange x:Name="range1"

Min="0" Max="20"

StartWidth="0.015"

EndWidth="0.015"

Background="#FF1E8D00" />

<telerik:GaugeRange x:Name="range2"

Min="20" Max="80"

StartWidth="0.015"

EndWidth="0.015"

Background="#FF000000" />

<telerik:GaugeRange x:Name="range3"

Min="80" Max="100"

StartWidth="0.015"

EndWidth="0.015"

Background="#FFE50000" />

</telerik:RadialScale.Ranges>

<telerik:RadialScale.Indicators>

<telerik:BarIndicator x:Name="radialBar"

Value="80"

telerik:ScaleObject.Location="Inside"

telerik:ScaleObject.Offset="0.25*" />

<telerik:RadialScaleMarker Name="marker"

IsAnimated="True"

Duration="0:0:1"

telerik:ScaleObject.Offset="-0.015*"

Value="25" />

<telerik:Needle Value="50" />

<telerik:Pinpoint />

</telerik:RadialScale.Indicators>

</telerik:RadialScale>

</telerik:RadRadialGauge>

</Grid>

</telerik:RadFluidContentControl.LargeContent>

</telerik:RadFluidContentControl>

</DataTemplate>

<DataTemplate x:Key="headerTemplate">

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Destination}" />

<TextBlock Text=" Trip" />

</StackPanel>

</DataTemplate>

</UserControl.Resources>

<Grid>

<Grid.RowDefinitions>

<RowDefinition/>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition/>

</Grid.ColumnDefinitions>

<telerik:RadTileView Grid.Column="0"

ContentTemplate="{StaticResource contentTemplate}"

IsItemDraggingEnabled="{Binding ElementName=IsItemDraggingEnabledOption,

Path=IsChecked}"

ItemsSource="{Binding Items}"

ItemTemplate="{StaticResource headerTemplate}"

MaximizeMode="{Binding ElementName=MaximizeModeOption,

Path=SelectedItem}"

PreservePositionWhenMaximized="{Binding ElementName=PreservePositionWhenMaximizedOption,

Path=IsChecked}"

TileStateChanged="tileView1_TileStateChanged"

TileStateChangeTrigger="{Binding ElementName=StateChangeOption,

Path=SelectedItem}" />

</Grid>

</UserControl>

Gauges

answered on 31 May 2013

5 answers

225 views

How to change the FirstDayOfweek in TimelineViewDefinition ?

Hello,

I use a RadScheduleView with the 4 differents view (day/week/month/timeline).
All works fine but for the Timeline view I want to show a week.
I have made :
<telerik:TimelineViewDefinition FirstDayOfWeek="Monday" VisibleDays="5" TimerulerMajorTickStringFormat="{}{0:HH:mm}"/>

But the first day visible is today and not Monday. What can I do for start the timeline Monday ?

Best regards,

Eric.

ScheduleView

answered on 31 May 2013

1 answer

169 views

Which property of RadComboBox I can use to close RadComboBox popup?

Hi,

I have modified ControlTemplate of RadCombioBox to display RadGridView. I am facing an issue with this. When I click an item from ComboBox to select it the ComboBox is not collapsing. I want to close the ComboBox popup when use selects an item and selected item should be assign to SelectedValue property of ComboBox. FYI, I have place RadGridView under NonEditableTemplate (inside "PART_Popup" popup).

And also I have tried seting IsDropDownOpen property to false on SelectedItem property but is also not working. When I click outside ComboBox the popup closes but a yellow border displayed around ComboBox.

Hereby I have attached image which helps to understand requirement. Please have a look at it.

Please help to resolve issue.

ComboBox

answered on 31 May 2013

8 answers

413 views

Digit grouping symbol in regional settings

Hello

My regional setting is set to German (Switzerland), which is using an apostrophe " ' " as digit grouping symbol.
In the attached two images you can see, that the correct grouping symbol is shown in case of a label, but in the RadGridView a comma is shown instead. I'm using the latest control for WPF (2012.3.1017.40) on a Windows 7 machine.

Do I have to set the regional settings explicilty somewhere, or what can I do to make sure the correct digit grouping symbol is shown?

Best regards, Jodok

GridView

answered on 31 May 2013

5 answers

603 views

Customize the TrackBall popup menu

Hi,

I'd like to be able to customize the data in the TrackBall popup. I see there's an example of how to customize the header (http://www.telerik.com/help/silverlight/radchartview-features-trackball.html), but I'd like to be able to customize the Value label to say Counts and Category to say Energy. Also I'd like to do use a converter, or some math on the values for the Value and Category. How can this be done?

Thanks!

ChartView

answered on 31 May 2013

2 answers

500 views

How to close autocomplete dropdown manually?

I have a search button and when user press enter, it will start a search.

however, the dropdown list is still be shown when enter is pressed.

how to hide the dropdown when i press enter to perform search?

i knew when i perform a selection, the dropdown list will be closed.

AutoCompleteBox

answered on 31 May 2013

3 answers

166 views

NullReferenceException when adding new ColumnsGroup from the attached behavior

Version: 2013.1.403
StackTrace:

System.NullReferenceException was unhandled

  HResult=-2147467261

  Message=Object reference not set to an instance of an object.

  Source=Telerik.Windows.Controls.GridView

  StackTrace:

       at Telerik.Windows.Controls.GridView.CommonHeaderPresenter.GetColumnCountToRealize(List`1 subHeaders)

       at Telerik.Windows.Controls.GridView.CommonHeaderPresenter.RealizeHeadersAtRow(Int32 row, List`1 subHeaders)

       at Telerik.Windows.Controls.GridView.CommonHeaderPresenter.RealizeHeaders()

       at Telerik.Windows.Controls.GridView.CommonHeaderPresenter.NotifyCellsPropertyChanged(String propertyName, DependencyPropertyChangedEventArgs e)

       at Telerik.Windows.Controls.GridView.GridViewHeaderRow.NotifyPropertyChanged(DependencyObject d, String propertyName, DependencyPropertyChangedEventArgs e, UpdateTarget target)

       at Telerik.Windows.Controls.GridView.GridViewDataControl.NotifyPropertyChanged(DependencyObject d, String propertyName, DependencyPropertyChangedEventArgs e, UpdateTarget target)

       at Telerik.Windows.Controls.GridViewColumnCollectionInternal.CalculateColumnWidths(Object arg)

       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.DispatcherOperation.InvokeImpl()

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

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

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

       at System.Windows.Threading.DispatcherOperation.Invoke()

       at System.Windows.Threading.Dispatcher.ProcessQueue()

       at System.Windows.Threading.Dispatcher.WndProcHook(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.LegacyInvokeImpl(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 PlayingTelerik.App.Main() in d:\work\Sandbox\PlayingTelerik\PlayingTelerik\obj\Debug\App.g.cs:line 0

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

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

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

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

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

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException:

GridView

answered on 30 May 2013

2 answers

54 views

Navigating Items that are not yet expanded

Hi,

I have a RadTreeView Control which i populate with RadTreeViewItems via the ItemSource Property.
Now i have to implement a Search functionality, that should work on all Items, starting from the current selected one and even on not expand items.

RadTreeViewItem offers NextItem, PreviousItem, Parent and so on, but those are only available when the tree is expanded (which means item is prepared as far as i understood)

It's possible to navigate down to the first occurence of a matching item, but how can i search further in the tree on the next sibling or so when they are not expanded?

I think it must be possible to search for an item and bring it into view from a not expanded tree...

Any help would be reeally appreciated...

TreeView

answered on 30 May 2013

4 answers

554 views

Binding color of timeline item to Brush Color

I am having a lot of trouble trying to bind a color of a timeline item to a specific color chosen by the user. I had thought I had the appropriate color to brush converter, and such, but whenever I run the application, the item color doesn't show up and appears transparent, but when I select a specific color in the XAML code, it works without a problem. However, the selection_changed event doesn't get fired at all.

Here is an example template I am using for the timeline item control

<DataTemplate x:Key="ItemStandardTemplate">
<Border Height="10" BorderBrush="Gray">
<Rectangle Height="7" VerticalAlignment="Center">
<Rectangle.Fill>
<SolidColorBrush Color="{Binding Color}"/>
</Rectangle.Fill>
</Rectangle>
</Border>
</DataTemplate>

I then apply this template to the timeline control using the normal static reference, but nothing shows up. The DataContext is set correctly as other properties from the same class show up in other controls without a problem.

A couple of notes, we do have the ExpressionDark theme applied via the StyleManager reference.

If there is another way to maintain the selection_changed event and still be able to update the color when a user changes it, then I am all ears.

I am fresh out of idea's and the examples don't seem to help.

Paul

TimeLine

answered on 30 May 2013