Hi,

I am new to Xamarin forms. I created a project and add a Telerik login screen to the project. I am facing some issues

    I have a Login xaml page ,here I have text fields like username and password and some social image icons .There is another  page for styling these login screen named Styles.xaml and it has some styles, these styles are declared using Resource Dictionary. I try to access these styles using  <ResourceDictionary Source="Styles.xaml" />. But the problem is , these styles are not visible. Text field and image icons are not visible.

Please get me a solution. I researched lot

My code samples are here:

Login.xaml,styles.xaml  and design page are attached bleow. Please find these

Hello,

We have an issue that seems to be Telerik DataGrid specific. It can be duplicated on a basic Telerik app, so it doesn't seem to be with just our app. We are using a datagrid, and when we enter the cell to edit, everything seems to work fine. However, if the user scrolls down through the grid, once the cell that is in focus passes the view of the device, the keyboard switches from numerical to alphanumeric (default?) automatically. When this happens, if we are to switch to another page within the app (we are using shell if it helps), the keyboard stays open. The user has to close it manually.

Another symptom, that we are not sure is related to this bug, is that when the user scrolls out of view of the device and then scrolls back up, the cell looks to be in focus (row is still highlighted and colored correctly), but the cell is not editable unless the user clicks on it again. Maybe these are two different issues?

The first issue seems to only be on Android 5.1, but the second issue is on all versions we have tested with (5.1, 7.1, 9.0). Both issues happen on multiple pages within our app, but seems to be connected with the size of the datagrid (having to scroll down and back up).

I would like to include a video of the behavior. Since this happens even in a basic telerik app, we don't know where to start with giving our code for you to troubleshoot. However, this forum doesn't allow uploads large enough to do that.

Thanks in advance.

Hello,

When I try to open a popup in uwp (Tried on local machine - windows 10) it throws the following exception : 

System.ArgumentException: 'Value does not fall within the expected range.'

The command I used: 

continuePopup.IsOpen = true;

When our data is loaded and have a null value it causes crash to our app and catches an "Object reference not set to an instance of an object". 
But this issue is only happening on iOS platform. Can someone help me this is a crucial issue for me and my team. 

{System.NullReferenceException: Object reference not set to an instance of an object
  at Telerik.XamarinForms.ChartRenderer.iOS.ManagedChartDataSource.AddPoints (TelerikUI.TKChartSeries series, System.Collections.IList newItems) [0x00196] in <22603cf6132d4ae9966514a9a3d3a88a>:0 
  at Telerik.XamarinForms.ChartRenderer.iOS.BaseChartRenderer`1[T].Telerik.XamarinForms.Chart.IChartRenderer.OnSeriesSourceCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e, System.Object series) [0x0004e] in <22603cf6132d4ae9966514a9a3d3a88a>:0 
  at Telerik.XamarinForms.Chart.ChartSeries.OnItemsSourceCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00017] in <22603cf6132d4ae9966514a9a3d3a88a>:0 
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00018] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/external/corefx/src/System.ObjectModel/src/System/Collections/ObjectModel/ObservableCollection.cs:263 
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/external/corefx/src/System.ObjectModel/src/System/Collections/ObjectModel/ObservableCollection.cs:338 
  at System.Collections.ObjectModel.ObservableCollection`1[T].InsertItem (System.Int32 index, T item) [0x0001a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/external/corefx/src/System.ObjectModel/src/System/Collections/ObjectModel/ObservableCollection.cs:196 
  at System.Collections.ObjectModel.Collection`1[T].Add (T item) [0x00020] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/external/corefx/src/Common/src/CoreLib/System/Collections/ObjectModel/Collection.cs:71 
  at NutritionalFitness.Mobile.ViewModels.ProgramPhaseViewModel.SetGraphsData (System.Collections.Generic.IEnumerable`1[T] weightIns, System.Collections.Generic.IEnumerable`1[T] waterIntakes) [0x00152] in D:\Work\NutritionalFitness\NutritionalFitness.Dev\NutritionalFitnessMobile\NutritionalFitness.Mobile\ViewModels\ProgramPhaseViewModel.cs:184 
  at NutritionalFitness.Mobile.ViewModels.ProgramPhaseViewModel.SetProgramPhaseComponents () [0x002d4] in D:\Work\NutritionalFitness\NutritionalFitness.Dev\NutritionalFitnessMobile\NutritionalFitness.Mobile\ViewModels\ProgramPhaseViewModel.cs:90 }

We are unable to reproduce this crash, but our App.Center Analytics is reporting this error from some, but not all, of our customers

Version 2019.2.708

Crash::

System.NullReferenceException: Object reference not set to an instance of an object

IOrderedTraversalController.UpdateTraversalOrder ()
VisualElementRenderer`1[TElement].UpdateParentPageTraversalOrder ()
VisualElementRenderer`1[TElement].OnElementPropertyChanged (System.Object sender, System.ComponentModel.PropertyChangedEventArgs e)
(wrapper delegate-invoke) <Module>.invoke_void_object_PropertyChangedEventArgs(object,System.ComponentModel.PropertyChangedEventArgs)
BindableObject.OnPropertyChanged (System.String propertyName)
Element.OnPropertyChanged (System.String propertyName)
Element.set_Parent (Xamarin.Forms.Element value)
RadViewContainer.DetachInnerView ()
RadViewContainer.set_View (Xamarin.Forms.View value)
SideDrawerRenderer.RetireViewContainer (Telerik.XamarinForms.Common.Android.RadViewContainer viewContainer)
SideDrawerRenderer.RetireMainContent ()
SideDrawerRenderer.RetireViewContainers ()
SideDrawerRenderer.OnElementDetached (Telerik.XamarinForms.Primitives.RadSideDrawer oldElement)
AndroidRendererBase`2[S,T].Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
Platform+DefaultRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)
PageRenderer.Dispose (System.Boolean disposing)
Object.Dispose ()
FragmentContainer.OnDestroyView ()
Fragment.n_OnDestroyView (System.IntPtr jnienv, System.IntPtr native__this)
(wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.74(intptr,intptr)

Is it possible to hide the numeric text entry box so that we just have plus/minus buttons?

If so, how do we do that.

Thanks,

Kevin

Hello,

The situation now is that I have AutoCompleteView with names of clubs, when the entry is empty then list is empty.

I would like that when the entry is empty ,all clubs names would be shown in list since when the users that use the application would not perfecrly know how to write the correct names and then they call us to say that their club is not on list.

How can I do that?

Thanks.

Starting from 2018.3.912.1 (was not able to reproduce in 2018.2.821.1 or earlier), loading charts on iOS crashes the device. This happens in the sample project SDKBrowser provided as well, when opening any of the Series charts (specifically the Vertical Bar which is what we have been using).

Stack trace of the crash:

This is happening on iOS Simulator 12.4, and on device on iOS 13.0. The current workaround is to stay on the old version of 2018.2.*, but this is not really a good workaround.