Questions on UI for WPF Forum

1 answer

105 views

Hi,
We are trying to port the existing .net framework WPF application with Telerik packages to .net Core WPF application. And we are using the Telerik latest stable version for the .net framework. While checking for Portability analysis we found some of the assemblies are missing in .net Core.
Telerik.Windows.Controls
Telerik.Windows.Controls.Diagrams
Telerik.Windows.Controls.GridView
Telerik.Windows.Controls.Input
Telerik.Windows.Controls.Navigation
Telerik.Windows.Controls.RibbonView
Telerik.Windows.Data
Telerik.Windows.Diagrams.Core
Kindly help us out in this issue.

Thank you

General Discussions

answered on 04 Mar 2020

4 answers

848 views

ResourceDictionary Source File VS local Style

Hi,

why is this working:

<telerik:RadRibbonWindow

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

x:Class="N4W.App.GuiLayer.Modules.OperatingCostsModule.Views.ProceedTest"

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

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

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:local="clr-namespace:N4W.App.GuiLayer.Modules.OperatingCostsModule.Views"

mc:Ignorable="d" Height="200" Width="400"

d:DesignHeight="450" d:DesignWidth="800">

<telerik:RadRibbonWindow.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<!--<ResourceDictionary>

<Style TargetType="local:ProceedTest" BasedOn="{StaticResource RadRibbonWindowStyle}" />

</ResourceDictionary>-->

<ResourceDictionary Source="RibbonWindowStyle.xaml" />

</ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

</telerik:RadRibbonWindow.Resources>

<Grid>

<TextBlock Text="Hallo" />

</Grid>

</telerik:RadRibbonWindow>

where the content of RibbonWindowStyle.xaml is:

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

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

xmlns:local="clr-namespace:N4W.App.GuiLayer.Modules.OperatingCostsModule.Views"

>

<Style TargetType="local:ProceedTest" BasedOn="{StaticResource RadRibbonWindowStyle}" />

</ResourceDictionary>

pic RadWindow2.jpg

and this is not working:

<telerik:RadRibbonWindow

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

x:Class="N4W.App.GuiLayer.Modules.OperatingCostsModule.Views.ProceedTest"

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

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

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:local="clr-namespace:N4W.App.GuiLayer.Modules.OperatingCostsModule.Views"

mc:Ignorable="d" Height="200" Width="400"

d:DesignHeight="450" d:DesignWidth="800">

<telerik:RadRibbonWindow.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary>

<Style TargetType="local:ProceedTest" BasedOn="{StaticResource RadRibbonWindowStyle}" />

</ResourceDictionary>

</ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

</telerik:RadRibbonWindow.Resources>

<Grid>

<TextBlock Text="Hallo" />

</Grid>

</telerik:RadRibbonWindow>

pic RadWindow1.jpg

For me both versions should end up in the same result, or what is the difference?!

BR Gert

General Discussions

answered on 04 Mar 2020

8 answers

166 views

When loading an XLSX file, the active worksheet's tab is not selected!

I am using the latest release. I have this code -- I even tried manually forcing the selection, but it didn't help any:

Workbook spreadsheetWorkbook = new XlsxFormatProvider( ).Import( result );

//I tried to force the active worksheet, but this doesn't help either!

spreadsheetWorkbook.ActiveWorksheet = spreadsheetWorkbook.Worksheets.FirstOrDefault( );

foreach ( var sheet in spreadsheetWorkbook.Worksheets )

{

sheet.ViewState.IsSelected = false;

}

if ( spreadsheetWorkbook.ActiveWorksheet != null )

{

spreadsheetWorkbook.ActiveWorksheet.ViewState.IsSelected = true;

}

spreadsheet.Workbook = spreadsheetWorkbook;

And the result is attached.

Please advise...

Regards,

Spreadsheet

answered on 04 Mar 2020

6 answers

1.0K+ views

How to change the full text search behavior?

Hi,

is it possible to change the full text search behavior from contains to start with?

The users whant e.g. to search vor zip codes and they do not want to see a lot of other results... pls see attached pic.

If it is possible is it also possible to switch the behavior at run time? Than I could provide a checkbox where the user can switch back to "contains-mode".

Thanks for help!!!

BR Gert

GridView

answered on 04 Mar 2020

1 answer

308 views

TypeConverter is not working

Hello,

I have followed your WPF example:

public class PlayerTypeConverter : TypeConverter

{

public override bool GetStandardValuesSupported(ITypeDescriptorContext context)

{

return true;

}

public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)

{

return true;

}

public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)

{

return new StandardValuesCollection(new string[] { "Mark Wright", "Ian Rush", "John Barnes",

"Paul Ince", "Jamie Redknapp", "Sami Hyypia", "Steven Gerrard ", "Jordan Henderson" });

}

and attached the converter to my property:

/// <summary>

/// Sets the algorithm that is available for the mode.

/// </summary>

[Category("Reconstruction")]

// [Editor(typeof(AlgorithmEditor), typeof(UITypeEditor))]

[Telerik.Windows.Controls.Data.PropertyGrid.Editor(typeof(ComboBox))]

[TypeConverter(typeof(AlgorithmConverter))]

[Description("Sets the algorithm that is available for the mode.")]

public string Algorithm

{

get => GetProperty<string>();

set => SetProperty(value);

}

Unfortunately when setting the property to the PropertyGrid the combobox does not show up.

The type converter is not even used. Originally I had the PropertyInspector which is still active until I have transitioned to the RadPropertyGrid, here the TypeConverter is used without any problems.

What could be the problem?

Thanks

Martin

PropertyGrid

answered on 03 Mar 2020

3 answers

150 views

Document Search solution

Hi,

I would like to know if it's possible by code when using the FindAll methods to highlight all search results and navigate through them in the document?

Thank's
Alain

PDFViewer

answered on 02 Mar 2020

6 answers

583 views

Disapearing Items for ListBox when ItemContainerStyle is set

We got problem (or maybe an issue) in the RadListBox with enabled Drag&Drop. In our Project we simply want to Drag&Drop Customers from a RadListBox to a RadScheduleView. For displaying the customer business objects into the list we use a simple data-template.

If we compile the project without the line 33 into the MainWindow.xaml the items are shown into the listbox. If we use the line, the items disappear, but the listbox could be used as drop-target from the calendar.

The problem occurred with the telerik wpf version 2016.3.914.45.NoXaml (folder-name of the library linked to the project) and the office 2016 style. We found out, that the problem was not reproducible with an older telerik version or another theme.

Is there any workaround or fix? Thank you for your help.

I attached the demo-project with the problem as zip-file with a password, for making it possible for you to reproduce the problem I attached the whole telerik classes. Because this the file is password covered. If you want to unpack the file, please request the password per e-mail.

App.xaml

01.<Application x:Class="TestApp1.App"

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

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

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

05. StartupUri="MainWindow.xaml">

06. <Application.Resources>

07. <ResourceDictionary>

08. <ResourceDictionary.MergedDictionaries>

09. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/System.Windows.xaml" />

10. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/Telerik.Windows.Controls.xaml" />

11. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/Telerik.Windows.Controls.Input.xaml" />

12. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/Telerik.Windows.Controls.Navigation.xaml" />

13. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/Telerik.Windows.Controls.RibbonView.xaml" />

14. <ResourceDictionary Source="/Telerik.Windows.Themes.Office2016;component/Themes/Telerik.Windows.Controls.ScheduleView.xaml" />

15. </ResourceDictionary.MergedDictionaries>

16. </ResourceDictionary>

17. </Application.Resources>

18.</Application>

MainWindow.xaml

01.<Window x:Class="TestApp1.MainWindow"

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

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

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

05. xmlns:local="clr-namespace:TestApp1"

06. xmlns:drag="clr-namespace:Telerik.Windows.DragDrop.Behaviors;assembly=Telerik.Windows.Controls"

07. Title="MainWindow" Height="350" Width="525">

08.

09. <Window.Resources>

10. <Style x:Key="DraggableListBoxItem" TargetType="telerik:RadListBoxItem">

11. <Setter Property="telerik:DragDropManager.AllowCapturedDrag" Value="True" />

12. <Setter Property="telerik:DragDropManager.AllowDrag" Value="True" />

13. </Style>

14. <DataTemplate x:Key="CustomerItem">

15. <TextBlock Foreground="Blue" Text="{Binding Name}" />

16. </DataTemplate>

17. </Window.Resources>

18.

19. <Window.DataContext>

20. <local:ViewModel/>

21. </Window.DataContext>

22.

23. <Grid>

24. <Grid.ColumnDefinitions>

25. <ColumnDefinition Width="5*"/>

26. <ColumnDefinition Width="5*"/>

27. </Grid.ColumnDefinitions>

28.

29. <telerik:RadListBox x:Name="ListBox"

30. AllowDrop="False"

31. ItemsSource="{Binding CustomersSource}"

32. ItemTemplate="{StaticResource CustomerItem}"

33. ItemContainerStyle="{StaticResource DraggableListBoxItem}">

34. <telerik:RadListBox.DragVisualProvider>

35. <telerik:ScreenshotDragVisualProvider />

36. </telerik:RadListBox.DragVisualProvider>

37. <telerik:RadListBox.DataConverter>

38. <local:AppointmentToCustomerConverter />

39. </telerik:RadListBox.DataConverter>

40. <telerik:RadListBox.DragDropBehavior>

41. <telerik:ListBoxDragDropBehavior AllowReorder="True" telerik:DragDropManager.TouchDragTrigger="TapAndHold" />

42. </telerik:RadListBox.DragDropBehavior>

43. </telerik:RadListBox>

44.

45. <telerik:RadScheduleView x:Name="scheduleView"

46. Grid.Column="1"

47. AppointmentsSource="{Binding AppointmentsSource}">

48. <telerik:RadScheduleView.ViewDefinitions>

49. <telerik:WeekViewDefinition />

50. </telerik:RadScheduleView.ViewDefinitions>

51. <telerik:RadScheduleView.DragDropBehavior>

52. <local:ScheduleViewDragDropBehavior />

53. </telerik:RadScheduleView.DragDropBehavior>

54. </telerik:RadScheduleView>

55. </Grid>

56.</Window>

ViewModel.cs

01.using System;

02.using System.Collections;

03.using System.Collections.Generic;

04.using System.Collections.ObjectModel;

05.using System.Linq;

06.using System.Text;

07.using Telerik.Windows.Controls;

08.using Telerik.Windows.Controls.ScheduleView;

09.using Telerik.Windows.DragDrop.Behaviors;

10.

11.namespace TestApp1

12.{

13. public class Customer

14. {

15. public string Name { get; set; }

16. }

17.

18. public class ViewModel : ViewModelBase

19. {

20. private ObservableCollection<Customer> customersSource;

21. private ObservableCollection<Appointment> appointmentsSource;

22.

23. public ViewModel()

24. {

25. this.CustomersSource = new ObservableCollection<Customer> {

26. new Customer{ Name = "Customer 1" }, new Customer{ Name = "Customer 2" }, new Customer{ Name = "Customer 3" },

27. new Customer{ Name = "Customer 4" }, new Customer{ Name = "Customer 5" }, new Customer{ Name = "Customer 6" },

28. new Customer{ Name = "Customer 7" }, new Customer{ Name = "Customer 8" }, new Customer{ Name = "Customer 9" },

29. };

30. this.AppointmentsSource = new ObservableCollection<Appointment>();

31. }

32.

33. public ObservableCollection<Customer> CustomersSource

34. {

35. get { return customersSource; }

36. set { customersSource = value; this.OnPropertyChanged("CustomersSource"); }

37. }

38.

39. public ObservableCollection<Appointment> AppointmentsSource

40. {

41. get { return appointmentsSource; }

42. set { appointmentsSource = value; this.OnPropertyChanged("AppointmentsSource"); }

43. }

44. }

45. public class ScheduleViewDragDropBehavior : Telerik.Windows.Controls.ScheduleViewDragDropBehavior

46. {

47. public object customers { get; set; }

48. public override IEnumerable<IOccurrence> ConvertDraggedData(object data)

49. {

50. if (DataObjectHelper.GetDataPresent(data, typeof(Customer), false))

51. {

52. var customers = DataObjectHelper.GetData(data, typeof(Customer), true) as IEnumerable;

53. if (customers != null)

54. {

55. var newApp = customers.OfType<Customer>().Select(c => new Appointment { Subject = c.Name });

56. return newApp;

57. }

58. }

59. return base.ConvertDraggedData(data);

60. }

61. }

62. public class AppointmentToCustomerConverter : DataConverter

63. {

64. public override string[] GetConvertToFormats()

65. {

66. return new string[] { typeof(ScheduleViewDragDropPayload).FullName, typeof(Customer).FullName };

67. }

68. public override object ConvertTo(object data, string format)

69. {

70. var payload = DataObjectHelper.GetData(data, typeof(ScheduleViewDragDropPayload), false) as ScheduleViewDragDropPayload;

71. if (payload != null)

72. {

73. var customers = payload.DraggedAppointments;

74. return customers.OfType<Appointment>().Select(a => new Customer { Name = a.Subject });

75. }

76. return null;

77. }

78. }

79.}

ListBox

answered on 02 Mar 2020

1 answer

136 views

Custom implementation of filtering and sorting

Hello everybody,

We need to create own implementation of RadGrid server filtering and sorting without using OData Web Services.

So, if the user choose filter from GridView, we want to create query to our custom Web Service. Web Service will return filtered and sorted data.

RadGrid shouldn't filter data by self.

We've try to write own implementation of QueryableCollectionView and use it as grid ItemsSource. Our collection implements ICollectionView, IQueryableCollectionView.
Unfortunately doesn't work. RadGrid is still filtering data in memory.

Please help.

GridView

answered on 28 Feb 2020

1 answer

108 views

Drop User Controls

I've like to start with a blank LayoutControl and allow a user to drop UI Elements onto it. Are there any examples on how this could be done?

Thanks

LayoutControl

answered on 28 Feb 2020

4 answers

239 views

RichTextBox not rendering in 2020.1.218.45

Hi,

I have a sample project that uses the RadRichTextBox and RadRichTextBoxRibbonUI controls. I'm using the Office2016 theme with NoXaml binaries. I was referencing the assemblies directly in the install directory:

C:\Program Files (x86)\Progress\Telerik UI for WPF R2 2019\Binaries.NoXaml\WPF45\Telerik.Windows.Themes.Office2016.dll

...and this all worked fine . I've since run the upgrade wizard to bump up to R1 2020 and this moved everything locally in the lib folder. Everything works as before with the exception of the RichTextBox, which does not render (the ribbon and other controls all render fine). If you check Mole you can see the top level element for the RichTextBox but it has no children and the control does not render.

One thing I notice, looking at the R1 2020 version of Office2016.dll in JustDecompile, is that the baml for richtextboxui seems to produce a parser exception:

Current member / type: themes/telerik.windows.controls.richtextboxui.baml
File path: C:\Program Files (x86)\Progress\Telerik UI for WPF R1 2020\Binaries.NoXaml\WPF45\Telerik.Windows.Themes.Office2016.dll

Product version: 2019.1.118.0
Character '0' was unexpected in string '0'. Invalid XAML type name.
at MS.Internal.Xaml.Parser.MeScanner.ResolveTypeName(String longName)
at MS.Internal.Xaml.Parser.MeScanner.Read()
at MS.Internal.Xaml.Parser.MePullParser.<P_MarkupExtension>d__9.MoveNext()
at MS.Internal.Xaml.Parser.MePullParser.<P_Value>d__13.MoveNext()

This is not the case for the same baml file in the equivalent R2 2019 assembly, which displays the xaml you'd expect.

Is this a known issue, or am I missing something else?

Many thanks

John

RichTextBox