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If  you're using the UI for Xamarin Nuget package.it adds all the UI for Xamarin references to your project.

This includes the following references to be able to use the new RadRadialGauge control:

- Telerik.XamarinForms.DataVisualization 
- Telerik.XamarinForms.SkiaSharp 

As of the latest release (R1 2017), we've added a new component RadRadialGauge. RadRadialGauge is rendered via the SkiaSharp graphics library so you need to install SkiaSharp.Views.Forms.

See my attached screenshot for clarification, I also attached a demo app to compare against yours.

After you add the SkiaSharp Nuget Package to all of the projects in your solution, the error should go away. Let us know if you have any further trouble.


No plans for using RadGauge?

If you do not intend on using the RadRadialGauge, you can remove the two references from each project:

- Telerik.XamarinForms.DataVisualization 
- Telerik.XamarinForms.SkiaSharp 

Note that the next time you install the UI for Xamarin nuget package (i.e. for an update), you may have to remove them again as this is part of the install script.

Telerik Admin
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 asked on 21 Feb 2017
1 answer
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I'm using the calendar to display single points of time, so for all my IAppointments StartDate == EndDate.  It recently came up in testing that any event with a time of 0:00 (default value) doesn't get a mark on the calendar. Everything gets a mark on Android as expected, this problem is iOS only.

My current workaround is to shift EndDate to 0:01, and it shows up.

Has anybody else seen this? Do I have a setting wrong somewhere? I'm pretty sure it worked fine a couple months ago, so maybe a recent update introduced a bug. I'm using 2016.3.

 

Rosy Topchiyska
Telerik team
 answered on 20 Feb 2017
1 answer
222 views

Hi,

I'm using a drag n drop ListView (IsItemsReorderEnabled=True). works fine.

Just wondering can the selected Item has a different style? also is there a event that once we release  the item?

Thanks

 

Lance | Senior Manager Technical Support
Telerik team
 answered on 20 Feb 2017
3 answers
224 views
RadListView has an 'update' gesture, which displays an ActivityIndicator. I'm getting data via Restful when the page loads and would like to display the built-in activity indicator - how might one do this?
Lance | Senior Manager Technical Support
Telerik team
 answered on 20 Feb 2017
3 answers
65 views

Hi,

The HeaderView only gives you about one Cells worth of space to work with, is it possible to make this HeaderView bigger? Also, is there a click handler for the HeaderView?

Thanks

Lance | Senior Manager Technical Support
Telerik team
 answered on 20 Feb 2017
2 answers
285 views

I need to know when the list has been reordered. I see that there is a ChildrenReordered event, but I can't get it to fire. Would you please provide the code behind C# code to handle when the list has been reordered?

Thanks!

Ron
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 answered on 20 Feb 2017
2 answers
131 views

Hi,

I would like to change the color of the arrow when we use the popup mode for the inlineview :

                presenter.InlineEventsViewMode = TKCalendarInlineEventsViewMode.Popover;

I could customize everything else but this black arrow...

Thanks for your reply,

Fabien

 

Fabien
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 answered on 20 Feb 2017
1 answer
110 views
I have some navigation that starts when the user selects a row in a RawListView. But when the user navigates back the row is still highlighted - how do I unhighlight the row? SelectedItem is read only so I can't clear it.
Gerry
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 answered on 17 Feb 2017
3 answers
188 views

Why is this happening for my UWP project at runtime in the forms.init call? I started getting a similar error when I did a store build. It could not find System.Private.Reflection.Core.dll instead of mscorlib.ni.dll in release mode. It builds ok, but I get the runtime error when running the release mode. So, I went back to debug mode and stated getting the error on mscorlib.nio.dll. I reverted back to my last good build on TFS and I am still getting these errors. In debug mode, mscorlib.ni.dll and release mode, system.private.reflection.dll. I have cleaned, deleted obj and bin, rebuilt to no avail. This has me stumped. anyone else having this? Another clue, The store build kind of runs, but my images on the home page are missing, they are embedded resources. For the release build I have tried to load the assemblies, but I am having a hard time knowing what the exact mane of the assemblies are. For debug, it used to in as is, with no assemblies loaded before the init.
Here is what I found on this topic and tried all suggestions in these posts. Not sure how to determine all the assemblies needed for release mode, how does one know what to put in there?
Here is what I have so far for the release mode problem, but I am shooting in the dark as I am not sure if these are correct nor complete.

 

var otherAssemblies = new[] {typeof(MR.Gestures.ContentPage).GetTypeInfo().Assembly,

typeof(MR.Gestures.UWP.Renderers.PageRenderer).GetTypeInfo().Assembly,

typeof(HomePage).GetTypeInfo().Assembly,

typeof(ImageCircle.Forms.Plugin.UWP.ImageCircleRenderer).GetTypeInfo().Assembly,

typeof(Telerik.XamarinForms.Common.UWP.TelerikForms).GetTypeInfo().Assembly,

typeof(Telerik.XamarinForms.Common.UWP.RadViewContainer).GetTypeInfo().Assembly,

typeof(SQLite.SQLite3).GetTypeInfo().Assembly,

typeof(Telerik.XamarinForms.DataControls.RadListView).GetTypeInfo().Assembly

,typeof(Telerik.XamarinForms.DataControlsRenderer.UWP.ListViewRenderer).GetTypeInfo().Assembly,

typeof(Telerik.XamarinForms.DataControls.ListView.ListViewGridLayout).GetTypeInfo().Assembly,};

 

Xamarin.Forms.Forms.Init(e, otherAssemblies);

 

https://developer.xamarin.com/guides/xamarin-forms/platform-features/windows/installation/universal/#Target_Invocation_Exception_when_using_Compile_with_.NET_Native_tool_chain
https://forums.xamarin.com/discussion/comment/246158
and another one:
[http://stackoverflow.com/questions/34424184/why-does-my-xamarin-pcl-throw-a-runtime-exception-when-building-release-for-univ]
Any other ideas? I cannot even run the app in debug mode now.

Russ
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 answered on 17 Feb 2017
5 answers
612 views

I have the code below which displays a BarSeries chart, but I cannot figure out how to set the width of the bar?

 

<telerikChart:RadCartesianChart x:Name="Devices"
                                Palette="{StaticResource BarGraphPalette}"
                                HeightRequest="{Binding DeviceSummary.Progression, Mode=OneWay, Converter={StaticResource listToHeightConverter}, ConverterParameter=50}">
    <telerikChart:RadCartesianChart.Grid>
        <telerikChart:CartesianChartGrid MajorLinesVisibility="None" MajorLineColor="Transparent"/>
    </telerikChart:RadCartesianChart.Grid>
 
    <telerikChart:RadCartesianChart.HorizontalAxis>
        <telerikChart:NumericalAxis  ShowLabels="True" />
    </telerikChart:RadCartesianChart.HorizontalAxis>
 
    <telerikChart:RadCartesianChart.VerticalAxis>
        <telerikChart:CategoricalAxis GapLength="0.3"
                                      ShowLabels="True"
                                      PlotMode="BetweenTicks"/>
    </telerikChart:RadCartesianChart.VerticalAxis>
 
    <telerikChart:RadCartesianChart.Series>
        <telerikChart:BarSeries ItemsSource="{Binding DeviceSummary.Progression}" ShowLabels="True" >
            <telerikChart:BarSeries.ValueBinding>
                <telerikChart:PropertyNameDataPointBinding PropertyName="Value" />
            </telerikChart:BarSeries.ValueBinding>
            <telerikChart:BarSeries.CategoryBinding>
                <telerikChart:PropertyNameDataPointBinding PropertyName="Category"/>
            </telerikChart:BarSeries.CategoryBinding>
        </telerikChart:BarSeries>
    </telerikChart:RadCartesianChart.Series>
 
</telerikChart:RadCartesianChart>
Petar Marchev
Telerik team
 answered on 17 Feb 2017
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