Questions on UI for .NET MAUI Forum

1 answer

53 views

[iOS] RichTextEditor doesn't copy formatted text properly anymore

I've noticed this issue after updating from Telerik UI version 6.5.0 to 6.8.0 on my iOS device. Before the update when copying and pasting this text:

I get this result in version 6.5.0:

And now in version 6.8.0 I get this:

RichTextEditor

answered on 27 Mar 2024

1 answer

34 views

TIFF support

Does Image Editor Support TIFF files?

ImageEditor

answered on 26 Mar 2024

2 answers

58 views

Chart with NumericalAxis and CategoricalAxis

Hi!

I added RadCartesianChart inside RadSlideView.

I have charts where on one slide there is NumericalAxis on another CategoricalAxis.

Is it possible to do an extension and treat this, or another way?

Custom axis: Numerical axisExt

Regards,

Rodrigo.

Chart

updated answer on 25 Mar 2024

1 answer

53 views

Can I use RadEventToCommandBehavior on the Page Level?

Hello,

I trying to use RadEventToCommandBehavior at page level to binding a Appearing Event to a command in my ViewModel, but it doesn't work.

[Page.XAML]

 <ContentPage.Behaviors>
     <telerik:RadEventToCommandBehavior Command="{Binding AppearingCommand}" EventName="Appearing"  />
 </ContentPage.Behaviors>

[ViewModel]

[RelayCommand]
public async Task AppearingCommand()
{
    await LoadData();
}

General Discussions

answered on 25 Mar 2024

1 answer

95 views

Is there a way to have multi-line text on RadButton?

I am trying to emulate an old UI, where the button text Previous Module is split into two lines. Is there a way to force word wrap or multi-line behavior on the RadButton? I tried placing a \n between the two words, but it treated it as text and not as an escape sequence.

Thanks

-Sean

Button

answered on 25 Mar 2024

1 answer

65 views

RichTextEditor Copy and Paste Formatting Issue

If I have formatted text inside of the MAUI RichTextEditor and copy it by right-clicking then paste it with Ctrl+V the formatting breaks. Doing Ctrl+C + Ctrl+V keeps the formatting, as well as right click copy and right click paste. In the example below I have copied the above text by right-clicking and pasted it below with Ctrl+V.

RichTextEditor

answered on 22 Mar 2024

2 answers

74 views

problem with RadRichTextEditor (especially UI)

Dear Telerik team,

I was trying to bind "Source" and "data for HTML string" of "RadRichTextEditor" but, when I tried to change the bound value to another value, it was not updated on UI.

I debugged code of RadRichTextEditor of Telerik and the second condition "IsDocumentLoaded" of OnSourcePropertyChanged() has to become "true" but, it's not "true" and I assume that this cause problem as below code.

private async void OnSourcePropertyChanged(RichTextSource richTextSource)
{
  if (richTextSource == null)
    ;
  else if (!this.IsDocumentLoaded)
    ;
  else
  {
    string htmlText = await this.GetHtmlAsync(richTextSource);
    this.dispatchHandler.InvokeOnMainThread((Action) (async () =>
    {
      await this.richTextView.SetHtmlAsync(htmlText);
      await this.richTextView.ClearHistoryAsync();
    }));
    this.dispatchHandler.InvokeOnMainThread((Action) (async () => await this.richTextView.ScrollToPositionAsync(0.0, 0.0)));
  }
}

I believe that the data(IsDocumentLoaded) is updated when "document-loaded"message come to RichTextView.

private void OnDocumentLoaded(object sender, EventArgs eventArgs)
{
  this.IsDocumentLoaded = true;
  this.UpdateDefaultValues();
  this.UpdateContentSize();
  this.UpdateCommandState();
}

Would you please check this problem and improve it so the bound data can be updated and shown to UI correctly whenever I change the HTML string data?

RichTextEditor

answered on 21 Mar 2024

1 answer

40 views

Scheduler showing 1 day appointment over 2 days

Hi,

Using the Maui scheduler if I add a 1 day appointment it shows over 2 days. Is this expected behaviour?

Thanks,

Euan

   Appointments.Add(new Telerik.Maui.Controls.Scheduler.Appointment()
   {
       UniqueId = "999",
       Subject = "Test",
       Location = "Testing",
       Start = DateTime.Now.Date,
       End = DateTime.Now.Date.AddDays(1),
       Category = new SchedulerAppointmentCategory("Crewable", "#FFFF80")
   });

Scheduler

answered on 15 Mar 2024

2 answers

102 views

[Android] RadGridView with too many rows crashes app

Hi,

Using VS 2022 17.10 / .NET 8.0.3 / Telerik UI for MAUI 6.8 / MAUI 8.0.10 / Android 10 (API 29)

I've got a RadGridView on a ContentPage :

 <c:NDCDataGrid
     x:Name="dataGridDetails"
     ItemsSource="{Binding DetailedData}">
     <t:RadDataGrid.Columns>
         <t:DataGridTextColumn HeaderText="Location" PropertyName="LocationName" />
         <t:DataGridTextColumn
             CellContentFormat="{}{0: dd/MM/yyyy}"
             HeaderText="Date"
             PropertyName="Date" />
         <t:DataGridTextColumn HeaderText="Count" PropertyName="Count" />
         <t:DataGridTextColumn HeaderText="Type" PropertyName="Desc" />
     </t:RadDataGrid.Columns>
 </c:NDCDataGrid>

My NDCDataGrid is defined like this :

<t:RadDataGrid
    x:Class="NDC.Mobile.Controls.NDCDataGrid"
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    xmlns:t="http://schemas.telerik.com/2022/xaml/maui"
    AutoGenerateColumns="False"
    CanUserReorderColumns="False"
    SelectionMode="Single"
    SelectionUnit="Row"
    UserFilterMode="Disabled">
    <t:RadDataGrid.AlternateRowBackgroundStyle>
        <AppThemeBinding>
            <AppThemeBinding.Light>
                <t:DataGridBorderStyle
                    BackgroundColor="Beige"
                    BorderColor="Black"
                    BorderThickness="1" />
            </AppThemeBinding.Light>
            <AppThemeBinding.Dark>
                <t:DataGridBorderStyle
                    BackgroundColor="DimGray"
                    BorderColor="White"
                    BorderThickness="1" />
            </AppThemeBinding.Dark>
        </AppThemeBinding>
    </t:RadDataGrid.AlternateRowBackgroundStyle>
    <t:RadDataGrid.SelectionStyle>
        <AppThemeBinding>
            <AppThemeBinding.Light>
                <t:DataGridBorderStyle
                    BackgroundColor="LightGreen"
                    BorderColor="Black"
                    BorderThickness="1" />
            </AppThemeBinding.Light>
            <AppThemeBinding.Dark>
                <t:DataGridBorderStyle
                    BackgroundColor="DarkBlue"
                    BorderColor="White"
                    BorderThickness="1" />
            </AppThemeBinding.Dark>
        </AppThemeBinding>
    </t:RadDataGrid.SelectionStyle>
</t:RadDataGrid>

When loading a list of 900+ elements, the app crashes

await Task.Run(async () =>
{
    DetailedData = new ObservableCollection<MyType>(await myService.Method());
});

MyType is defined like this :

   public int LocationName { get; set; }

   public int Count { get; set; }

   public DateTime Date { get; set; }

   public string Desc { get; set; }

Java.Lang.RuntimeException: 'Canvas: trying to draw too large(119964240bytes) bitmap.'

 	0xFFFFFFFFFFFFFFFF in Android.Runtime.RuntimeNativeMethods.monodroid_debugger_unhandled_exception	C#
 	0x1A in Android.Runtime.JNINativeWrapper._unhandled_exception at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs:13,5	C#
 	0x1E in Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPL_V at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs:126,26	C#
 	0x17 in System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw	C#
 	0x8C in Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualVoidMethod at /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/obj/Release/net7.0/JniEnvironment.g.cs:20830,5	C#
 	0x2D in Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeNonvirtualVoidMethod at /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:93,6	C#
 	0xA6 in Android.Graphics.RecordingCanvas.DrawBitmap at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/obj/Release/net8.0/android-34/mcw/Android.Graphics.RecordingCanvas.cs:161,5	C#
 	0x68 in SkiaSharp.Views.Android.SurfaceFactory.DrawSurface	C#
 	0xCB in SkiaSharp.Views.Android.SKCanvasView.OnDraw	C#
 	0x11 in Android.Views.View.n_OnDraw_Landroid_graphics_Canvas_ at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/obj/Release/net8.0/android-34/mcw/Android.Views.View.cs:18998,4	C#
 	0x9 in Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPL_V at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs:125,5	C#
 	0xF in Java.Interop.JniNativeMethods.CallNonvirtualBooleanMethodA at /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/obj/Release/net7.0/JniEnvironment.g.cs:18200,4	C#
 	0x73 in Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualBooleanMethod at /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/obj/Release/net7.0/JniEnvironment.g.cs:20458,4	C#
 	0x8A in Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualBooleanMethod at /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:164,7	C#
 	0x70 in Android.Views.ViewGroup.DrawChild at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/obj/Release/net8.0/android-34/mcw/Android.Views.ViewGroup.cs:2839,5	C#
 	0x4 in Microsoft.Maui.Controls.Platform.Compatibility.ShellFlyoutRenderer.DrawChild at D:\a\_work\1\s\src\Controls\src\Core\Compatibility\Handlers\Shell\Android\ShellFlyoutRenderer.cs:172,4	C#
 	0x1C in Android.Views.ViewGroup.n_DrawChild_Landroid_graphics_Canvas_Landroid_view_View_J at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/obj/Release/net8.0/android-34/mcw/Android.Views.ViewGroup.cs:2824,4	C#
 	0xD in Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPLLJ_Z at /Users/runner/work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs:323,5	C#

The control is unusable in this state !

Thanks.

DataGrid

answered on 15 Mar 2024

1 answer

41 views

RichTextEditor "AutoGenerateContextMenu" Property Does Not Work

Using the SDKBrowser application to test, I'm not able to right-click inside any of the rich text editors on Windows to bring up the context menu. I tried setting AutoGenerateContextMenu = "True" but that didn't change anything. Maybe I'm misinterpreting the documentation but it seems like that property should enable right-clicking?

RichTextEditor