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3 answers
200 views

Hi.

I am using Grouping with GroupRenderMode set to Flat and ColumnAggregatesAlignment set to NextToGroupKey.

My problem is that as long as i try i cannot overwrite the ToggleButton style in order to link the foreground to a resource.

Below is what i believe that is the style of the toggle button. Whatever i do, nothing works.

 <Style BasedOn="{StaticResource GroupHeaderRowToggleButtonStyle}" TargetType="{x:Type ToggleButton}">
                <Setter Property="Control.Template" Value="{StaticResource GroupHeaderRowToggleButtonTemplateCUSTOM}"/>
                <Setter Property="Control.HorizontalContentAlignment" Value="Left"/>
                <Setter Property="Control.VerticalContentAlignment" Value="Center"/>
                <Setter Property="Control.Padding" Value="9 0 0 0"/>
</Style>

Martin
Telerik team
 answered on 21 Nov 2017
1 answer
71 views

I have WPF application RadCartesianChart

This is the code of one of them......

  <telerik:RadCartesianChart x:Name="RadChart1"     Palette="Windows8"  DataContext="{Binding XPath=/Nodes/Node,Source={StaticResource xml_Chart}}">

            <telerik:RadCartesianChart.HorizontalAxis>
                <telerik:CategoricalAxis Background="#FFF50000" />
            </telerik:RadCartesianChart.HorizontalAxis>
            <telerik:RadCartesianChart.VerticalAxis>
                <telerik:LinearAxis />
            </telerik:RadCartesianChart.VerticalAxis>
            <telerik:RadCartesianChart.Series>
                <telerik:BarSeries CategoryBinding="{Binding XPath=@shortTime}"
                                   ValueBinding="{Binding XPath=Item/@value}"
                                   ItemsSource="{Binding}"   ShowLabels="True">
                </telerik:BarSeries>
            </telerik:RadCartesianChart.Series>
       </telerik:RadCartesianChart>
     =============================================================

I want to work with xml..

<telerik:BarSeries CategoryBinding="{Binding XPath=@shortTime}"
                                   ValueBinding="{Binding XPath=Item/@value}"
                                   ItemsSource="{Binding}"   ShowLabels="True">
                </telerik:BarSeries>

I can not run it. Help..... Thanks.

 

 

 

 

Martin Ivanov
Telerik team
 answered on 20 Nov 2017
2 answers
132 views

Hi

I have big troubles using your framework. Nowadays the docking functionality doesn't work as it should.

If I drag a panel, the panel (and also its border) is not visible while dragging. After docking the panel's titlebar is disappeared.

I'm running the latest version of your framework on visual studio 2017 (15.2).

 

Dinko | Tech Support Engineer
Telerik team
 answered on 20 Nov 2017
3 answers
224 views
I need to know if WPF RadGridView works with BindingOperations.EnableCollectionSynchronization. If not what solution you are suggesting to iterate and update my collection from worker thread?
Dilyan Traykov
Telerik team
 answered on 20 Nov 2017
6 answers
553 views

Hello,

I have a problem trying to reproduce the Radwindow as main window KB (https://www.telerik.com/support/kb/wpf/window/details/how-to-use-radwindow-as-main-window).

I'm using VB.NET with 2017.3.913.40 telerik components. I'm also using noXaml binaries.

When i run the application, nothing is visible.

I've tried todo this alos MainWindow inherits radwindow, but it's not better.

If i remove the onStartup code and set the application startupuri to MainWindow.xaml, i have the window visible, but there is another aweful window visible behind.

This problem will drive me crazy !

Thanks in advance for your answers.

Application.xaml

<Application x:Class="TelerikWpfApp13.Application"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:local="clr-namespace:TelerikWpfApp13">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="/Telerik.Windows.Themes.Material;component/Themes/System.Windows.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Material;component/Themes/Telerik.Windows.Controls.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Material;component/Themes/Telerik.Windows.Controls.Navigation.xaml" />
                <ResourceDictionary Source="/Telerik.Windows.Themes.Material;component/Themes/Telerik.Windows.Controls.Docking.xaml" />
            </ResourceDictionary.MergedDictionaries>
            <Style TargetType="local:MainWindow" BasedOn="{StaticResource RadWindowStyle}" />
        </ResourceDictionary>
    </Application.Resources>
</Application>

 

Application.xaml.vb

Class Application
    Inherits System.Windows.Application
 
    ' Application-level events, such as Startup, Exit, and DispatcherUnhandledException
    ' can be handled in this file.
    Protected Overrides Sub OnStartup(e As StartupEventArgs)
        Call New MainWindow().Show()
        MyBase.OnStartup(e)
    End Sub
 
End Class

 

MainWindow.xaml

<telerik:RadWindow x:Class="MainWindow"
        Header="MainWindow" Height="300" Width="300">
    <Grid>
         
    </Grid>
</telerik:RadWindow>

 

MainWindow.xaml.vb

Public Class MainWindow
 
End Class

 

OD
Top achievements
Rank 1
 answered on 17 Nov 2017
1 answer
99 views

I have the following code for generating a stackedbar chart, but the bars are not visible. I have attached the screen shot of chart as well.

Can you please help me point out the issue

 

Class ChartDatas
        Public SalesRep As String
        Public LastYearValue As Double
        Public CurYearValue As Double
        Public BudgetedValue As Double

        Public Sub New(ByVal strSalesRep As String, dbLastYearVal As Double, dbCurYearVal As Double, dbBudgetedVal As Double)
            SalesRep = strSalesRep
            LastYearValue = dbLastYearVal
            CurYearValue = dbCurYearVal
            BudgetedValue = dbBudgetedVal
        End Sub
    End Class

    Private Sub ShowChart()
       
        chtComparison.SeriesMappings.Clear()
        chtComparison.DefaultView.ChartLegend.Visibility = Visibility.Collapsed
        chtComparison.DefaultView.ChartArea.DataSeries.Clear()
        chtComparison.DefaultView.ChartLegend.UseAutoGeneratedItems = True

        Dim SeriesColor As Color
        Dim seriesDef As StackedBarSeriesDefinition

        Dim ListChartData As New List(Of ChartDatas)
        ListChartData.Add(New ChartDatas("Sales Rep1", 100, 200, 300))
        ListChartData.Add(New ChartDatas("Sales Rep2", 200, 300, 200))
        ListChartData.Add(New ChartDatas("Sales Rep3", 50, 300, 200))

        Dim SeriesMap1 As New SeriesMapping() With {.LegendLabel = "Series1"}
        SeriesMap1.ItemMappings.Add(New ItemMapping("LastYearValue", DataPointMember.YValue))
        SeriesMap1.ItemMappings.Add(New ItemMapping("SalesRep", DataPointMember.XCategory))
        'SeriesMap1.SeriesDefinition = New StackedBarSeriesDefinition() With {.ShowItemLabels = True}
        SeriesColor = Color.FromRgb(0, 0, 255)
        seriesDef = New StackedBarSeriesDefinition With {.ShowItemLabels = True}
        seriesDef.Appearance.Fill = New SolidColorBrush(SeriesColor)
        SeriesMap1.SeriesDefinition = seriesDef

        Dim SeriesMap2 As New SeriesMapping() With {.LegendLabel = "Series2"}
        SeriesMap2.ItemMappings.Add(New ItemMapping("CurYearValue", DataPointMember.YValue))
        SeriesMap2.ItemMappings.Add(New ItemMapping("SalesRep", DataPointMember.XCategory))
        'SeriesMap2.SeriesDefinition = New StackedBarSeriesDefinition() With {.ShowItemLabels = True}
        SeriesColor = Color.FromRgb(0, 255, 0)
        seriesDef = New StackedBarSeriesDefinition With {.ShowItemLabels = True}
        seriesDef.Appearance.Fill = New SolidColorBrush(SeriesColor)
        SeriesMap2.SeriesDefinition = seriesDef

        Dim SeriesMap3 As New SeriesMapping() With {.LegendLabel = "Series3"}
        SeriesMap3.ItemMappings.Add(New ItemMapping("BudgetedValue", DataPointMember.YValue))
        SeriesMap3.ItemMappings.Add(New ItemMapping("SalesRep", DataPointMember.XCategory))
        SeriesColor = Color.FromRgb(255, 0, 0)
        seriesDef = New StackedBarSeriesDefinition With {.ShowItemLabels = True}
        seriesDef.Appearance.Fill = New SolidColorBrush(SeriesColor)
        SeriesMap3.SeriesDefinition = seriesDef

        'chtComparison.DefaultView.ChartArea.AxisY.AutoRange = False
        'chtComparison.DefaultView.ChartArea.AxisY.AddRange(0, 1000, 100)

        chtComparison.SeriesMappings.Add(SeriesMap1)
        chtComparison.SeriesMappings.Add(SeriesMap2)
        chtComparison.SeriesMappings.Add(SeriesMap3)
        chtComparison.ItemsSource = ListChartData

    End Sub

 

Martin Ivanov
Telerik team
 answered on 17 Nov 2017
5 answers
236 views

Hi,

I want to change selected text style. I don't have problem with change one word or line but i don't know how to select exact text and change style.

Below is code how i change style selected line.

private void Editor_OnMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {      

                var normalStyle = editor.Document.StyleRepository[HeadingName];
                var position = new DocumentPosition(editor.Document.CaretPosition);
                position.MoveToCurrentLineStart();
                editor.Document.Selection.AddSelectionStart(position);
                position.MoveToCurrentLineEnd();
                editor.Document.Selection.AddSelectionEnd(position);

                editor.ChangeSpanStyle(normalStyle);

       }

I don't find any solution to solve this problem.

Any suggestion?

Tom
Top achievements
Rank 1
 answered on 17 Nov 2017
2 answers
182 views

Hi,

I have a problem with bindning command (which is in parent ViewModel) to RadRibbonBackstageItem.

<UserControl x:Class="Project.TelerikEditor"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:telerikViewModel ="clr-namespace:Project.Modules.TelerikEditor.ViewModel"
             xmlns:optionsViewModel="clr-namespace:Project.Modules.Options.ViewModel"
             d:DesignHeight="300"
             d:DesignWidth="900"
             mc:Ignorable="d" >
   <UserControl.DataContext>
        <telerikViewModel:TelerikEditorViewModel/>
    </UserControl.DataContext>

...........

...........

...........

<telerik:RadRibbonBackstageItem Header="Options"
                                                    Icon="{telerik:IconResource IconRelativePath=16/new.png,
                                                                                IconSources={StaticResource IconSources}}"
                                                    DataContext="{Binding DataContext, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Mode=TwoWay}"
                                                    Command="{Binding OptionsWindowCommand }""
                                                    IsSelectable="false"
                                                    >

The Command don't pass to ViewModel.

Any suggestion?

 

Boby
Telerik team
 answered on 16 Nov 2017
4 answers
939 views

See that over the years there has been many issues with "Index out of range". Is this a general issue that has not been resolved yet? We are starting to use a WPF-application in production and as the load increases we get more and more of these exceptions. Looks like it can happen when we remove and item from a RadObservableCollection (or a ObservableCollection bound to a RadTimeline) and add an item right afterwards. Maybe combined with many entries in the collection.

Is there a workaround?

Here is a callstack:

2017-11-13 16:34:38,704 [106:1] ERROR Tennotech.Hilding.Watchman.App - Unhandled exception: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
2017-11-13 16:34:38,714 [106:1] DEBUG Tennotech.Hilding.Watchman.App - Stacktrace:
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at Telerik.Windows.Controls.ProjectedView`1.ObservableSourceListCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at System.Windows.Data.CompositeCollection.OnContainedCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Windows.WeakEventManager.ListenerList`1.DeliverEvent(Object sender, EventArgs e, Type managerType)
   at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
   at System.Windows.Data.CollectionContainer.OnContainedCollectionChanged(NotifyCollectionChangedEventArgs args)
   at System.Windows.WeakEventManager.ListenerList`1.DeliverEvent(Object sender, EventArgs e, Type managerType)
   at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
   at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at System.Windows.Data.ListCollectionView.ProcessCollectionChangedWithAdjustedIndex(NotifyCollectionChangedEventArgs args, Int32 adjustedOldIndex, Int32 adjustedNewIndex)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
   at System.Collections.ObjectModel.Collection`1.Remove(T item)
   at Tennotech.Hilding.Watchman.Utilities.MirroredRadList`2.SourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in C:\BuildAgent\work\a6c0493e3d7aa6b\Source\Tennotech.Hilding.Watchman.Utilities\MirroredRadList.cs:line 193
   at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
   at System.Collections.ObjectModel.Collection`1.Remove(T item)
   at Tennotech.Hilding.Watchman.Framework.Devices.GenericRecordingsSynchronizer.OnRecordingsUpdated(Object sender, ParameterizedEventArgs`1 eventArgs) in C:\BuildAgent\work\a6c0493e3d7aa6b\Source\Tennotech.Hilding.Watchman.Framework\Devices\GenericRecordingsSynchronizer.cs:line 174
   at System.Reactive.AnonymousSafeObserver`1.OnNext(T value)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Ola
Top achievements
Rank 1
 answered on 16 Nov 2017
9 answers
398 views

Hi,

  There are switches you can use in Word to make the value of a mail merge field change case.  Ex. \* FirstCap, \* Upper, \* lower.  These don't seem to work correctly in the RichTextBox.  I'm adding the fields in code and the values display but the formatting isn't correct.  I've taken a template I made in Word and tried that which works correctly in Word but doesn't in the Telerik control so I'm not sure it is my code that is the issue.

  Any help would be appreciated.

      Troy

Boby
Telerik team
 answered on 16 Nov 2017
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