in the Resources i define the text format for TimelineItemTemplate

<DataTemplate x:Key="ItemWithDurationTemplate">

<TextBlock  Foreground="Black" FontFamily="Segoe UI" FontSize="12"  Text="{Binding  Path=DataItem.recognitions}">

</DataTemplate >

TimelineItemTemplate="{StaticResource ItemWithDurationTemplate}"

How can I change the font size when the mouse  is scrolling?

Shoule i use the Radtimeline_MouseWheel event?

Hi,

I've a performance problem with the charts.
Background:

- It's a C# / WPF application mit MVVM Pattern
- Variable amount of Lines Series. My test scenario was with 15 Lines.
- Amount of datapoints of each line: First scenario = 2.000, Second Scenarion 20.000
- Horizontal Axes = DateTime
- Approx time to show the chart: First scenario around 2 seconds, Second Scenarion around 10 - 15 seconds

You can find my XAML Code attached.

How can I improve the performance ?
It can be that a value is the same over a time. For now I have for example for every 15Minutes a point. Even if it's the same value over the whole day.
Is it possible to define one point and to say that it is the same for x hours instead of have hundreds of points ?


Regards
Stefan

Hello. I want to use GridView for editing dependable combbox.
For examle I select Club from list in first ComboBox in Grid and after select players of this Club.
                <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding Name, Mode=TwoWay}" 
                                                ItemsSource="{Binding ClubList}" Width="120" IsReadOnly="False" Header="St Name" 
                                                SortMemberPath="Name"
                                                SelectedValueMemberPath="Name" 
                                                IsComboBoxEditable="True"
                                                telerik:TextSearch.TextPath="Name"
                                                DisplayMemberPath="Name"
                />
                <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding PlayerName, Mode=TwoWay}" 
                                                ItemsSource="{Binding PlayerList}" Width="120" IsReadOnly="False" Header="Player Name" 
                                                SortMemberPath="Name"
                                                SelectedValueMemberPath="Name" 
                                                IsComboBoxEditable="True"
                                                telerik:TextSearch.TextPath="Name"
                                                DisplayMemberPath="Name"
                />

I don't understand how to make it work.

        private ObservableCollection<Club> _clubs;
        public ObservableCollection<Club> ClubList
        {
            get
            {
                if (this._clubs == null)
                {
                    this._clubs = Club.GetClubs();
                }

                return this._clubs;
            }
        }

Hello I'm trying to add depandable comboboxes to RadGridView and my Comoboxes always empty. What I do wrong? For examle I want to add Club and Players to grid - Select Club and then Select Player from players of this Club

                <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding Name, Mode=TwoWay}" 
                                                ItemsSource="{Binding ClubList}" Width="120" IsReadOnly="False" Header="Club Name" 
                                                SortMemberPath="Name"
                                                SelectedValueMemberPath="Name" 
                                                IsComboBoxEditable="True"
                                                telerik:TextSearch.TextPath="Name"
                                                DisplayMemberPath="Name"
                />
                <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding PlayerName, Mode=TwoWay}" 
                                                ItemsSource="{Binding PlayerList}" Width="120" IsReadOnly="False" Header="Player Name" 
                                                SortMemberPath="Name"
                                                SelectedValueMemberPath="Name" 
                                                IsComboBoxEditable="True"
                                                telerik:TextSearch.TextPath="Name"
                                                DisplayMemberPath="Name"
                />

public class ClubLinks : INotifyPropertyChanged

{

        public string Name
        {
            get { return this.name; }
            set
            {
                if (value != this.name)
                {
                    this.name = value;
                    this.OnPropertyChanged("Name");
                }
            }
        }

        public string PlayerName { get; set; }

        private ObservableCollection<Club> _clubs;
        public ObservableCollection<Club> ClubList
        {
            get
            {
                if (this._clubs == null)
                {
                    this._clubs = Club.GetClubs();
                }

                return this._clubs;
            }
        }

    public ObservableCollection<Player> PlayerList
        {
            get
            {
                if (null == this.players)
                {
                    this.players =
                     new ObservableCollection<Player>()
                        {
                            new Player(){Name = "Pl1_" + name},
                            new Player(){Name = "Pl2_" + name},
                            new Player(){Name = "Pl3_" + name},
                            new Player(){Name = "Pl4_" + name},
                        };
                }

                return this.players;
            }
        }

I have the following GridView with the questionable checkbox column. Is there any way to add a command to the checkbox IsChecked property, like an event?

The TestCommand is implemented in the viewmodel and it is working well with a button.

My end goal is to trigger fading colour animation on a row when any of its data is updated to signal update to the user. To do that, a style was created:

However it looks like like Binding.TargetUpdated is never triggered. Is there any other way to do this?

WHAT I HAVE:

Currently I have a ganttview where the user can control the time span (Controlled using ###.PixelLength) that is visible in the ganttview window (not the total visibleRange).

WHAT I AM LOOKING TO DO:

I am trying to get a the timespan the user can "see", not scroll through. For instance, if the ganttview covers from 1/3/2015 12:45AM to 4/11/2025 however the graph is zoomed (using PixelLength) such that only a window from, say, 2/2/2017 7:45PM to 2/2/2017 9:56PM is visible. I want to be able to get the timespan associated with 2/2/2017 7:45PM to 2/2/2017 9:56PM not the entire visible range.

MY LAST ATTEMPT

From what I have seen I am only able to generate a IDateRange associated with the ###.VisibleRange.

Thanks

We are using the validation IDataErrorInfo in my Gridviews and with the version 2019.1 when the cell that generates the error is hiding with the property isVisible in the xaml, or making the window smaller and hiding the column in which the cell that generates the error is , the error mark  and row color disappears in the rows that generate it.

With the previous versions this did not happen.

I have verified that this courre with the example of the sdk ValidationIDataErrorInfo.

Waiting for a response