Telerik Forums
UI for Universal Windows Platform Forum
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Multiple users have generated a crash log via AppCenter that suggests I have some sort of Telerik error, but I haven't been able to duplicate it myself. Here's the error.

ComCallHelpers.Call (__ComObject, RuntimeTypeHandle, Int32, Void*)

EETypeRva:0x00067310(System.Runtime.InteropServices.MissingInteropDataException): System.Collections.Generic.IList`1[Windows.UI.Xaml.Automation.Peers.AutomationPeer] is missing interop type marshalling data. To enable interop type marshalling data, add a MarshalObject directive to the application rd.xml file. For more information, please visit http://go.microsoft.com/fwlink/?LinkID=393965

 

Here's the stack trace

  • System.Runtime.InteropServices
    __interface_ccw.Allocate (ComCallableObject, RuntimeTypeHandle)
  • SharedLibrary!<BaseAddress>+0x6f7813
  • System.Runtime.InteropServices
    CCWLookupMap.GetOrCreateCCW (Object, RuntimeTypeHandle, IntPtr&)
  • SharedLibrary!<BaseAddress>+0x6f769f
  • SharedLibrary!<BaseAddress>+0x6f7667
  • SharedLibrary!<BaseAddress>+0x6f75eb

  • __Interop
    ComCallHelpers.Call (__ComObject, RuntimeTypeHandle, Int32, Void*)
  • __Interop.ForwardComStubs.Stub_3[TThis, TResult](__ComObject, Int32) + 0x2c
  • Telerik.UI.Automation.Peers
    DataGridCellsPanelAutomationPeer.GetChildrenCore ()
  • Windows.UI.Xaml.Automation.Peers.AutomationPeer.global::Windows.UI.Xaml.Automation.Peers
    IAutomationPeerOverrides.GetChildrenCore ()

  • __Interop
    ComCallHelpers.Call (__ComObject, RuntimeTypeHandle, Int32, Void*)
  • __Interop.ForwardComStubs.Stub_3[TThis, TResult](__ComObject, Int32) + 0x2c
  • Telerik.UI.Automation.Peers
    RadDataGridAutomationPeer.GetChildrenCore ()
  • Windows.UI.Xaml.Automation.Peers.AutomationPeer.global::Windows.UI.Xaml.Automation.Peers
    IAutomationPeerOverrides.GetChildrenCore ()

  • __Interop
    ComCallHelpers.Call (__ComObject, RuntimeTypeHandle, Int32, Void*)
  • __Interop.ForwardComStubs.Stub_3[TThis, TResult](__ComObject, Int32) + 0x2c

  • Telerik.UI.Xaml.Controls.Grid.SelectionService
    <RaiseAutomationSelection>d__43.MoveNext ()
  • System.Runtime.ExceptionServices
    ExceptionDispatchInfo.Throw ()

  • Telerik.UI.Xaml.Controls.Grid.SelectionService
    <Select>d__13.MoveNext ()
  • System.Runtime.ExceptionServices
    ExceptionDispatchInfo.Throw ()

  • __Interop
    ComCallHelpers.Call (__ComObject, RuntimeTypeHandle, Int32)
  • __Interop
    ForwardComStubs.Stub_22[TThis] (__ComObject, Int32)
  • Microsoft.AppCenter.Utils
    ApplicationLifecycleHelper.<ctor>b__17_1 (Object, UnhandledErrorDetectedEventArgs)

 

Does anyone have any thoughts about what this might be related to? Thanks!

Tyler
Top achievements
Rank 1
 asked on 05 May 2023
1 answer
32 views
How to set focus to textbox in edit of Raddatagrid in Tappped command
Lance | Manager Technical Support
Telerik team
 answered on 27 Mar 2023
0 answers
22 views

We use a Telerik RadGrid to display data from our tables on a page. The page is done in old C# .NET Framework 4.8.  Our Telerik version is 2023.1.117.45.

The page allows the user to edit the data from the DB. When they click a button the page displays an edit control with the data from a given row that has a save button and a cancel button. When the cancel button is hit the RadGrid sends a "Cancel" command to the code-behind, even though nothing in the code-behind responds to this command the edit form is removed.

On some of our other pages when the save button is hit it runs the update/insert code behind, and also removes the control. But I recently added a new page, based upon the old one, but the new one does not remove the edit control when a save it done. My code on the new page is obviously slightly different, but I cannot find what I changed that stops the removal of the edit form once the data is saved. The cancel button on this new page does this, but again, neither page has any code-behind that responds to the cancel button.

Is there documentation on how the cancel command works? It seems to be done auto-magically by Telerik without the code added by the developer running. Is there an explicit way to trigger this effect?

My previous experience doing front end stuff was using JavaScript and in that I would just edit the dom to remove the control, or hide it. But that is never done on any of the page using Telerik here.

Terry
Top achievements
Rank 1
 asked on 22 Mar 2023
1 answer
62 views
Hi,

This is a bug in my opinion, this a line can be drawn from 2 points.

While this will probably never fixed in the UWP project, I'm 99% sure the bug is in the WinUI project too since most of the rendering code is surely shared.

To repro the bug, just comment the 3rd data in the MainPage.xaml.cs file.

S├ębastien
Didi
Telerik team
 updated answer on 23 Jan 2023
1 answer
38 views

I Have A RadDatagrid and I want to customize the External Editor is layout and access the save/apply button and need some examples of using BeginEdit() and CommitEdit()

Thanks.

Didi
Telerik team
 answered on 26 Dec 2022
1 answer
45 views

Hi! I'm building an UWP app and having some issues with the bar graph.

I would like to show the value-label for each Tick instead of categoryname.

Like the example in the attached image that is from another application:

As you can see there is no Label for the bar, only labels for the tick. How do I do that in an UWP application.

Didi
Telerik team
 answered on 26 Dec 2022
2 answers
68 views

Looking for more detailed information on the styling abilities of this control.  Can the track width be shrunk doesn't feel like it can be.  Definitely like this control for the application.  Just need to style it proper

When using Blend 2022 or 19, seeing a null reference with the Panel placed into a style not sure why

Morgan
Top achievements
Rank 1
Iron
 answered on 23 Sep 2022
1 answer
271 views

Hi There, I'm using the Telerik Datagrid for UWP and it is a pleasure to work with it. I am now developing a datagrid view with several comboboxes to select data from other Lists (Tables in sqlite) and I am struggling with the selected values. I have defined a combobox with the proper data to display but when I select a different record and try to update the change in the record the value is the same as when first initiated. How can i transfer the value? When I use a ordinary combobox the SelectedValuePath and the SelectedValue do the job but this is the datagrid and seems to be different. I searched the net and all questions and also your documentation but didn't find the answer. 

Here's some relevant code: 

XAML:

<Page
    x:Class="GolfComp.Views.TeamListPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:GolfComp.Views"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls" 
    xmlns:telerikGrid="using:Telerik.UI.Xaml.Controls.Grid"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <RelativePanel>
            <CommandBar x:Name="mainCommandBar" HorizontalAlignment="Stretch" IsEnabled="{x:Bind enableCommandBar}">
                <AppBarButton
                    Click="Insert_new_entry"
                    Icon="Add"
                    Label="New"
                    ToolTipService.ToolTip="New record"/>
                <AppBarButton
                    Click="Delete_Click"
                    Icon="Delete"
                    Label="Delete"
                    ToolTipService.ToolTip="Delete record" />
                <AppBarButton
                    Click="UpdateRecord_Click"
                    Icon="Refresh"
                    Label="Update"
                    ToolTipService.ToolTip="Update record" />
            </CommandBar>
            <StackPanel
                x:Name="newRecordStackPanel"
                Orientation="Horizontal"                
                RelativePanel.Below="mainCommandBar">
                <ComboBox x:Name="golfclubDropDown" Header="Homeclub" Margin="8,8,16,8" MinWidth="150"/>
                <ComboBox x:Name="klasseDropDown" Header="Competitie" Margin="8,8,16,8" MinWidth="150"/>
                <TextBox
                    x:Name="TeamNaamTextBox"
                    Header="Teamnaam"
                    PlaceholderText="teamnaam"
                    Margin="8,8,16,8"/>
                <AppBarButton x:Name="DeleteNewRecord" Click="DeleteNewRecord_Click" Icon="Cancel"/>
                <AppBarButton x:Name="SaveNewRecord" Click="SaveNewRecord_Click" Icon="Save"/>
            </StackPanel>
            <telerikGrid:RadDataGrid 
                AutoGenerateColumns="False"
                x:Name="Datagrid" 
                BorderThickness="0" 
                ColumnDataOperationsMode="Flyout" 
                GridLinesVisibility="None"
                GroupPanelPosition="Left" 
                RelativePanel.AlignLeftWithPanel="True"
                RelativePanel.AlignRightWithPanel="True"
                RelativePanel.Below="newRecordStackPanel"
                UserEditMode="Inline"
                SelectedItem="{x:Bind SelectedItem, Mode=TwoWay}">
                <telerikGrid:RadDataGrid.Columns>
                    <telerikGrid:DataGridComboBoxColumn PropertyName="Competitie" 
                                                        Header="Competitie"                                                         
                                                        ItemsSource="{x:Bind klasse}"
                                                        DisplayMemberPath="Competitie"
                                                        SelectedValuePath="Klasse_Id" />
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler1Id" Header="Speler 1"/>
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler2Id" Header="Speler 2"/>
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler3Id" Header="Speler 3" />
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler4Id" Header="Speler 4" />
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler5Id" Header="Speler 5" />
                    <telerikGrid:DataGridNumericalColumn PropertyName="Speler6Id" Header="Speler 6" />
                    <telerikGrid:DataGridTextColumn PropertyName="Naam" Header="Teamnaam" />
                </telerikGrid:RadDataGrid.Columns>
            </telerikGrid:RadDataGrid>
        </RelativePanel>
    </Grid>

</Page>

C#


namespace GolfComp.Views
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class TeamListPage : Page, INotifyPropertyChanged
    {
        ObservableCollection<SpelerModel> speler = new ObservableCollection<SpelerModel>();
        ObservableCollection<GolfclubModel> golfclub = new ObservableCollection<GolfclubModel>();
        ObservableCollection<TeamModel> team = new ObservableCollection<TeamModel>();
        ObservableCollection<CoachModel> coach = new ObservableCollection<CoachModel>();
        ObservableCollection<KlasseModel> klasse = new ObservableCollection<KlasseModel>();
        bool enableCommandBar = true;
        public TeamListPage()
        {
            this.InitializeComponent();
            newRecordStackPanel.Visibility = Visibility.Collapsed;
        }
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
            GetData();
            wireUpDropdowns();
            if (Datagrid.ItemsSource == null)
            {
                Datagrid.ItemsSource = team;
            }
        }
        public void GetData()
        {
            string sql1 = "SELECT * from Speler";
            var spelerlijst = SqliteDataAccess.LoadData<SpelerModel>(sql1, new Dictionary<string, object>());
            spelerlijst.ForEach(x => speler.Add(x));

            string sql2 = "select * from Golfclub";
            var golfclublijst = SqliteDataAccess.LoadData<GolfclubModel>(sql2, new Dictionary<string, object>());
            golfclublijst.ForEach(x => golfclub.Add(x));

            string sql3 = "SELECT Team.Id, KlasseId, Speler1Id, Speler2Id, Speler3Id, Speler4Id, Speler5Id, Speler6Id, Team.Naam, Klasse_Id, Klasse_Naam, Klasse_Omschrijving from Team " +
                "INNER JOIN Klasse ON Klasse.Klasse_Id = Team.KlasseId;";
            var teamlijst = SqliteDataAccess.LoadData<TeamModel>(sql3, new Dictionary<string, object>());
            teamlijst.ForEach(x => team.Add(x));

            string sql4 = "select * from Coach";
            var coachlijst = SqliteDataAccess.LoadData<CoachModel>(sql4, new Dictionary<string, object>());
            coachlijst.ForEach(x => coach.Add(x));

            string sql5 = "select * from Klasse";
            var klasselijst = SqliteDataAccess.LoadData<KlasseModel>(sql5, new Dictionary<string, object>());
            klasselijst.ForEach(x => klasse.Add(x));

        }

        private void wireUpDropdowns()
        {
            golfclubDropDown.ItemsSource = golfclub;
            golfclubDropDown.DisplayMemberPath = "Naam";
            golfclubDropDown.SelectedValuePath = "Id";

            klasseDropDown.ItemsSource = klasse;
            klasseDropDown.DisplayMemberPath = "Competitie";
            klasseDropDown.SelectedValuePath = "Klasse_Id";
        }   
        private void Delete_Click(object sender, RoutedEventArgs e)
        {
            string sql = "delete from Teams where Id = @Id";
            try
            {
                Dictionary<string, object> parameters = new Dictionary<string, object>
                {
                    { "@Id", SelectedItem.Id }
                };
                SqliteDataAccess.DeleteData(sql, parameters);
                speler.Clear();
                GetData();
            }
            catch
            {
                MessageDialog messagedialog = new MessageDialog("Fout: Selecteer een record");
                _ = messagedialog.ShowAsync();

                return;
            }
        }
        private void UpdateRecord_Click(object sender, RoutedEventArgs e)
        {
            string sql = "update Team set KlasseId = @KlasseId, Speler1Id = @Speler1Id, Speler2Id = @Speler2Id, " +
                "Speler3Id = @Speler3Id, Speler4Id = @Speler4Id, Speler5Id = @Speler5Id, Speler6Id = @Speler6Id, " +
                "Naam = @Naam, CoachId = @CoachId, ClubId = @ClubId, PuntenVoor = @PuntenVoor, PuntenTegen = @PuntenTegen " +
                "where Id = @Id";
            try
            {
                Dictionary<string, object> parameters = new Dictionary<string, object>
                {
                    { "@Id",SelectedItem.Id },
                    { "@KlasseId", SelectedItem.Klasse_Id },
                    { "@Speler1Id", SelectedItem.Speler1Id},
                    { "@Speler2Id", SelectedItem.Speler2Id},
                    { "@Speler3Id", SelectedItem.Speler3Id},
                    { "@Speler4Id", SelectedItem.Speler4Id},
                    { "@Speler5Id", SelectedItem.Speler5Id},
                    { "@Speler6Id", SelectedItem.Speler6Id},
                    { "@Naam", SelectedItem.Naam},
                    { "@CoachId", SelectedItem.CoachId},
                    { "@ClubId", SelectedItem.ClubId},
                    { "@PuntenVoor", SelectedItem.PuntenVoor},
                    { "@PuntenTegen", SelectedItem.PuntenTegen}
                };
                SqliteDataAccess.SaveData(sql, parameters);
                speler.Clear();
                GetData();

                MessageDialog messagedialog = new MessageDialog("Succes: wijzigingen weggeschreven");
                _ = messagedialog.ShowAsync();
            }
            catch (Exception ex)
            {
                MessageDialog messagedialog = new MessageDialog(ex.Message);
                _ = messagedialog.ShowAsync();

                return;
            }
        }
        private void Insert_new_entry(object sender, RoutedEventArgs e)
        {
            enableCommandBar = false;
            newRecordStackPanel.Visibility = Visibility.Visible;
        }
        private void DeleteNewRecord_Click(object sender, RoutedEventArgs e)
        {           
            enableCommandBar = true;
            newRecordStackPanel.Visibility = Visibility.Collapsed;
        }
        private (bool isValid, TeamModel model) ValidateForm()
        {
            bool isValid = true;
            TeamModel model = new TeamModel();

            try
            {
                model.KlasseId = (int)klasseDropDown.SelectedValue;
                model.Speler1Id = 0;
                model.Speler2Id = 0;
                model.Speler3Id = 0;
                model.Speler4Id = 0;
                model.Speler5Id = 0;
                model.Speler6Id = 0;
                model.Naam = TeamNaamTextBox.Text;
                model.CoachId = 0;
                model.ClubId = (int)golfclubDropDown.SelectedValue;
                model.PuntenVoor = 0;
                model.PuntenTegen = 0;

            }
            catch
            {
                isValid = false;
            }
            return (isValid, model);
        }
        private void SaveNewRecord_Click(object sender, RoutedEventArgs e)
        {
            TeamModel model = new TeamModel();

            string sql = "insert into Team (KlasseId, Speler1Id, Speler2Id, Speler3Id, Speler4Id, Speler5Id, Speler6Id, Naam, CoachId, ClubId, PuntenVoor, PuntenTegen ) " +
                "values (@KlasseId, @Speler1Id, @Speler2Id, @Speler3Id, @Speler4Id, @Speler5Id, @Speler6Id, @Naam, @CoachId, @ClubId, @PuntenVoor, @PuntenTegen)";

            var form = ValidateForm();
            if (form.isValid == false)
            {
                MessageDialog messagedialog = new MessageDialog("foutieve invoer. Probeer het opnieuw");

                _ = messagedialog.ShowAsync();

                return;
            }
            if (TeamNaamTextBox.Text == "")
            {
                MessageDialog messagedialog = new MessageDialog("Vul alle velden in");

                _ = messagedialog.ShowAsync();

                return;
            }
            Dictionary<string, object> parameters = new Dictionary<string, object>
            {
                {"@KlasseId", form.model.KlasseId },
                {"@Speler1Id", form.model.Speler1Id },
                {"@Speler2Id", form.model.Speler2Id },
                {"@Speler3Id", form.model.Speler3Id },
                {"@Speler4Id", form.model.Speler4Id },
                {"@Speler5Id", form.model.Speler5Id },
                {"@Speler6Id", form.model.Speler6Id },
                {"@Naam", form.model.Naam },
                {"@CoachId", form.model.CoachId },
                {"@ClubId", form.model.ClubId },
                {"@PuntenVoor", form.model.PuntenVoor },
                {"@PuntenTegen", form.model.PuntenTegen }

            };
            SqliteDataAccess.SaveData(sql, parameters);
            //speler.Add(form.model);
            

            enableCommandBar = true;
            newRecordStackPanel.Visibility = Visibility.Collapsed;

            team.Clear();

            GetData();          

            wireUpDropdowns();
        }
        public event PropertyChangedEventHandler PropertyChanged;
        public void OnPropertyChanged([CallerMemberName] string propertyName = null) =>
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

        private TeamModel _selectedItem;

        public TeamModel SelectedItem
        {
            get => _selectedItem;
            set
            {
                if (_selectedItem != value)
                {
                    _selectedItem = value;
                    OnPropertyChanged();
                }
            }
        }
    }
}

Polya
Telerik team
 answered on 15 Sep 2022
1 answer
62 views
Hi,

In a RadCartesianChart with BarSeries, when a value is zero, we do see a 1px color line.

I do believe we should not see anything when a value is zero.

If the rendering engine is the same in WinUI, the behavior is surely there too.

Thanks
S├ębastien
Didi
Telerik team
 answered on 12 Sep 2022
1 answer
73 views

I use a telerik datagrid to display my data in UWP. I want to hide the Id column because this is automatically increased field in my SQLite database. I use it however in various methods. the command this.["Name of the grid"].Columns[1].Visability = false produces an exeption,

I tried various other solutions but nothing seems to work.

Regards Rob

I use: Visual studio 2019

Telerik.UI.for.UWP 1.0.2.9

code XAML:

<Page
    x:Class="GolfComp.Views.KlasseListPage"
    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:controls="using:Microsoft.Toolkit.Uwp.UI.Controls" 
    xmlns:telerikGrid="using:Telerik.UI.Xaml.Controls.Grid"
    mc:Ignorable="d" 
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

    <Grid>

        <RelativePanel>
            <CommandBar x:Name="mainCommandBar" HorizontalAlignment="Stretch" IsEnabled="{x:Bind enableCommandBar}">

                <AppBarButton
                    Click="Insert_new_entry"
                    Icon="Add"
                    Label="New"
                    ToolTipService.ToolTip="New record"/>
                <AppBarButton
                    Click="Delete_Click"
                    Icon="Delete"
                    Label="Delete"
                    ToolTipService.ToolTip="Delete record" />
                <AppBarButton
                    Click="Refresh_Click"
                    Icon="Refresh"
                    Label="Update"
                    ToolTipService.ToolTip="Update record" />
            </CommandBar>
            <StackPanel
                x:Name="newRecordStackPanel"
                Orientation="Horizontal"                
                RelativePanel.Below="mainCommandBar">
                <TextBox
                    Header="Naam Competitie"
                    PlaceholderText="naam"
                    Margin="8,8,16,8"
                    MinWidth="200"
                    x:Name="NaamTextBox" />
                <TextBox
                    Header="Klasse"
                    PlaceholderText="klasse"
                    Margin="8,8,16,8"
                    MinWidth="200"
                    x:Name="klasseTextBox" />
                <AppBarButton x:Name="DeleteNewRecord" Click="DeleteNewRecord_Click" Icon="Cancel"/>
                <AppBarButton x:Name="SaveNewRecord" Click="SaveNewRecord_Click" Icon="Save"/>
            </StackPanel>        
            
            <telerikGrid:RadDataGrid
             x:Name="DataGrid"
             BorderThickness="0"
             ColumnDataOperationsMode="Flyout"
             GridLinesVisibility="None"
             GroupPanelPosition="Left"
             RelativePanel.AlignLeftWithPanel="True"
             RelativePanel.AlignRightWithPanel="True"
             RelativePanel.Below="newRecordStackPanel"                 
             ItemsSource="{x:Bind klasse}"
             UserEditMode="Inline"              
             SelectedItem="{x:Bind SelectedItem, Mode=TwoWay}"/>
            
            
        </RelativePanel>
    </Grid>
    

</Page>   

 

Lance | Manager Technical Support
Telerik team
 answered on 31 Aug 2022
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