Hi

I have a DataGrid where the XAML is:

                            <telerik:RadGridView Grid.Column="2" 
                                                 NewRowPosition="Bottom"
                                                 GroupRenderMode="Flat"
                                                 ShowGroupPanel="False"
                                                 AutoGenerateColumns="False"
                                                 SelectedItem="{Binding SelectedDevice.SelectedDataConfiguration, Mode=TwoWay}"
                                                 ItemsSource="{Binding SelectedDevice.DataConfiguration}"
                                                 IsSynchronizedWithCurrentItem="True"
                                                 x:Name="DataConfigurationGrid"
                                                 Margin="2">
                                <telerik:RadGridView.Columns>
                                    <telerik:GridViewComboBoxColumn Header="Data page" DataMemberBinding="{Binding MethodId, Mode=TwoWay}" ItemsSourceBinding="{Binding DataContext.DataDefinitions, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:SatelliteManager}}}" DisplayMemberPath="Name"/>
                                    <telerik:GridViewComboBoxColumn Header="Class" DataMemberBinding="{Binding ClassId, Mode=TwoWay}" ItemsSource="{Binding SelectedDevice.SelectedTournament.Classes}" IsReadOnly="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterClass, Converter={StaticResource InvertedBooleanConverter}}" IsEnabled="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterClass}" DisplayMemberPath="Name" SelectedValueMemberPath="Id"/>
                                    <telerik:GridViewComboBoxColumn Header="Group" 
                                                                    DataMemberBinding="{Binding GroupId, Mode=TwoWay}" 
                                                                    IsReadOnly="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterGroup, Converter={StaticResource InvertedBooleanConverter}}" 
                                                                    IsEnabled="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterGroup}" 
                                                                    DisplayMemberPath="DescriptiveName" 
                                                                    SelectedValueMemberPath="Id">
                                        <telerik:GridViewComboBoxColumn.ItemsSource>
                                            <MultiBinding>
                                                <MultiBinding.Converter>
                                                    <converters:GroupsByDivisionConverter/>
                                                </MultiBinding.Converter>
                                                <Binding Path="SelectedDevice.SelectedTournament.Groups"/>
                                                <Binding Path="SelectedDevice.SelectedDataConfiguration.ClassId"/>
                                            </MultiBinding>
                                        </telerik:GridViewComboBoxColumn.ItemsSource>
                                    </telerik:GridViewComboBoxColumn>
                                    <telerik:GridViewComboBoxColumn Header="Pitch" DataMemberBinding="{Binding PitchId, Mode=TwoWay}" ItemsSource="{Binding SelectedDevice.SelectedTournament.Pitches}" IsReadOnly="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterPitch, Converter={StaticResource InvertedBooleanConverter}}" IsEnabled="{Binding SelectedDevice.SelectedDataConfiguration.MethodId.CanFilterPitch}" DisplayMemberPath="Name" SelectedValueMemberPath="Id"/>
                                    <telerik:GridViewDataColumn Header="Duration">
                                        <telerik:GridViewDataColumn.CellTemplate>
                                            <DataTemplate>
                                                <telerik:RadNumericUpDown Minimum="1" Maximum="1000" IsInteger="True" Width="50" Margin="2" Value="{Binding Duration, Mode=TwoWay}"/>
                                            </DataTemplate>
                                        </telerik:GridViewDataColumn.CellTemplate>
                                    </telerik:GridViewDataColumn>
                                </telerik:RadGridView.Columns>
                            </telerik:RadGridView>

I have a Wrapper class I use for the itemssource for the comboboxes:

    public class TournamentSatelliteWrapper
    {
        public TournamentInfo Tournament { get; set; }
        public List<ClassInfo> Classes { get; set; }
        public List<GroupInfo> Groups { get; set; }
        public List<PitchInfo> Pitches { get; set; }
    }

Now, when I select a method where I can filter by division and group, these initial lists are filled correctly. But the list of groups are all groups..across divisions. So, when I select division (class), I have created a converter to alter the list of the groups:

    public class GroupsByDivisionConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            Guid? classId = values[1] == DependencyProperty.UnsetValue ? null : values[1] as Guid?;

            if (values[0] is List<GroupInfo>)
            {
                List<GroupInfo> groups = (List<GroupInfo>)values[0];

                if (classId.HasValue)
                    groups = groups.Where(x => x.Class.Id == classId.Value).ToList();

                return groups;
            }

            // fallback
            return values[0];
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

All this works fine... except that when I switch between the different rows, I only see the name of the selected group for the selected row. I can see the issue, I am just not sure how to get around this. 

I can understand that the itemssource list does not contain the referenced item of the selected group when looking at a row where a different division is selected.. when applying the converter... the resulting list is the source for all the cells (each row). How could I only alter the list for the selected row? and the other cells keep their altered lists accordingly to have the selected group name display correctly?

Hi,everyone，

I choose the MaterialTheme for my window and it works as expected after changing  my  MaterialPalette.Palette .  But after using the SplashScreen, the Palette  setting seems to have failed. 

And the Palette  didn‘t work in  SplashScreen either.

 What's wrong  with my steps?

Thank you for your help！

I am sure that I am missing something basic here, but I cant get this control to behave. I tried a number of different things to get the data in the ObservableCollection to show up in the gridview with no luck.

(Using .netcore 3.0 libs)

The gridview is bound to the following property in the xaml .

The ViewModel has the following Property

public ObservableCollection<ProductionRecordModel> ProductionRecords { get => _records; set => _records = value; } 

The grid control appears to be bound correctly to the ObserveableCollection, because setting a breakpoint on the ProductionRecordModel.ProductionDate getter, (the first column in the grid is bound to this property) is called for each element in the collection.  

There just does not appear to be any data in the gridview, I am stumped.

Any ideas what I am doing wrong here?

Thanks

-Sean

How can I add Sorting to the DropDown GridView, so that when the User first opens the DropDown, the GridView is already sorted on one or more columns?

I have a panelbaritem that contains a grid. When the grid is expanded I get the scrollbar as expected. I am able to scroll up/down by dragging the scrollbar button up/down. However, I cannot use the mousewheel to scroll.

Is there any special setting to enable mouse wheel scrolling.

Just to make sure that it is not a problem with my project, I created a small test project and see the same behavior.

I was wondering if it would be possible to overlay an arrow on a task in a Radganttview.

I leave you an example photo of what I want to do.

Hi,

I have a question for the problem related radpane resources.

In my project, radpane contains content which has sometimes more than 300mb of RAM for each instance(composed of telerik controls, GroupView etc.), so I really need to dispose radpane resources.

I followed instructions after searching some references, and it said that I should call radpane.RemoveFromParent(); for it to be garbage collected.

However, it is not working. The resources still remains same after even afeter calling the method.

The problem arises when radpane content is user control with only managed resources, which to be collected by GC.

Here is my code.

<RadDock>

   <RadPaneGroup>

          new <radpane> is created each time..

   </RadPaneGroup>

</RadDock>

When radpane is closed...

RadDock.CloseEvent += RaiseRadpaneCloseEvent();

RaiseRadpaneCloseEvent(object sender, eventargs e)

{

                // small codes to call radpane.....

                // here is radPane code.

                if (radPane != null)
                {
                    radPane.RemoveFromParent();

                    radPane.Content = null;
                    radPane.Header = null;
                    radPane.DataContext = null;
                    radPane.IsActive = false;
                    radPane.IsEnabled = false;
                    radPane = null;
                }

                // this works fine. When the content is UserControl

                // only some control is Idisposable, put only when unmanaged resources exist inside control .

                MethodInfo method = this.userControl.GetType().GetMethod("Dispose");
                if (method == null) return;

                method.Invoke(this.userControl, null);

}

Hope to get an answer quickly. Thanks.

Hello,

I'm currently using a RadCartesianChart. I want to centre my HorizontalAxis which is a LinearAxis on my VerticalAxis.
I want to know if it's possible and how to do it? I've searched for a long time on this forum, but I didn't find any solution. I see an old subject with a conclusion that is impossible.

Thanks for your help. Tell me if you need some code or anything else.
Justin

If in AppointmentSource I have some Appointment that came from the server and the user edited it but didn't save the changes

and exited the window,

then when he opens the Schedule again he will see the Appointment where he dragged it even though he didn't save it.

I tried to find the one that moved by UniqeId and then delete it and return the previous Appointment

by UniqeId but it does not work,

because probably UniqeId changes every drag.

Do you have another solution for me?

Thanks for the helpers

For example:

This is coming from the server:

And after the user dragged it (or edited it):

Hi, I would like to help how to change these colors from yellow to my colors

Thanks for the helpers