
Hi everyone,
I have a GridView with 5 grouping, lots of data. When I expand the last level of grouping, I have this weird white space.
The issue is not present when I set the GroupRenderMode to Nested but the performance become terrible.
No difference when I change the value of AutoExpandGroups.
here is the code :
<telerik:RadGridView x:Name="GridViewListingNumberList" GroupRenderMode="Flat" VerticalAlignment="Top" VerticalContentAlignment="Top" telerik:StyleManager.Theme="Windows" Background="Transparent" ColumnBackground="Transparent" AlternationCount="2" SelectionUnit="FullRow" ItemsSource="{Binding List.Presenter.ResultDisplay}" MaxHeight="900" Margin="5,5,5,10" CanUserFreezeColumns="False" AutoExpandGroups="False" RowIndicatorVisibility="Collapsed" AutoGenerateColumns="False" IsReadOnly="True" MouseDoubleClick="shareGrid_MouseDoubleClick" ShowGroupPanel="true"> <telerik:RadGridView.Columns> <telerik:GridViewDataColumn IsVisible="true" Header="Marché" UniqueName="MarketName" Width="auto" DataMemberBinding="{Binding MarketName}" IsReadOnly="True" ShowColumnWhenGrouped="False"> <telerik:GridViewDataColumn.GroupHeaderTemplate> <DataTemplate> <TextBlock Text="{Binding Group.Key, StringFormat='Marché: {0}'}" VerticalAlignment="Center"/> </DataTemplate> </telerik:GridViewDataColumn.GroupHeaderTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn IsVisible="true" Header="Payeur" UniqueName="PayerName" Width="auto" DataMemberBinding="{Binding PayerName}" IsReadOnly="True" ShowColumnWhenGrouped="False"> <telerik:GridViewDataColumn.GroupHeaderTemplate> <DataTemplate> <TextBlock Text="{Binding Group.Key, StringFormat='Payeur: {0}'}" VerticalAlignment="Center"/> </DataTemplate> </telerik:GridViewDataColumn.GroupHeaderTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn IsVisible="true" Header="Périodicité" UniqueName="PeriodicityName" Width="auto" DataMemberBinding="{Binding PeriodicityName}" IsReadOnly="True" ShowColumnWhenGrouped="False"> <telerik:GridViewDataColumn.GroupHeaderTemplate> <DataTemplate> <TextBlock Text="{Binding Group.Key, StringFormat='Période: {0}'}" VerticalAlignment="Center"/> </DataTemplate> </telerik:GridViewDataColumn.GroupHeaderTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn IsVisible="true" Header="Lot" UniqueName="MarketBatchName" Width="auto" DataMemberBinding="{Binding MarketBatchName}" IsReadOnly="True" ShowColumnWhenGrouped="False"> <telerik:GridViewDataColumn.GroupHeaderTemplate> <DataTemplate> <TextBlock Text="{Binding Group.Key, StringFormat='Lot: {0}'}" VerticalAlignment="Center"/> </DataTemplate> </telerik:GridViewDataColumn.GroupHeaderTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn IsVisible="true" Header="Société" UniqueName="CompanyName2" Width="auto" DataMemberBinding="{Binding CompanyName2}" IsReadOnly="True" ShowColumnWhenGrouped="False"> <telerik:GridViewDataColumn.GroupHeaderTemplate> <DataTemplate> <TextBlock Text="{Binding Group.Key, StringFormat='Société: {0}'}" VerticalAlignment="Center"/> </DataTemplate> </telerik:GridViewDataColumn.GroupHeaderTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn Header="" Width="30" SortMemberPath="Statut" IsReadOnly="True"> <telerik:GridViewDataColumn.CellTemplate> <DataTemplate> <TextBlock x:Name="OutwardTextSPState" Width="20" TextAlignment="Center"> <TextBlock.Style> <Style TargetType="TextBlock" BasedOn="{StaticResource SmallFontStyle}"> <Style.Triggers> <DataTrigger Binding="{Binding Statut}" Value="TOTELETRANSMIT"> <Setter Property="Text" Value="ÀT" /> <Setter Property="ToolTip" Value="À TÉLÉTRANSMETTRE" /> <Setter Property="Background" Value="{StaticResource HighlightBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="TELETRANSMITED"> <Setter Property="Text" Value="T" /> <Setter Property="ToolTip" Value="TÉLÉTRANSMISE" /> <Setter Property="Background" Value="{StaticResource GreenBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="TOVALIDATE"> <Setter Property="Text" Value="ÀV" /> <Setter Property="ToolTip" Value="À VALIDER" /> <Setter Property="Background" Value="{StaticResource RedBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="PRINTED"> <Setter Property="Text" Value="I" /> <Setter Property="ToolTip" Value="IMPRIMÉE" /> <Setter Property="Background" Value="{StaticResource AlternateGreenBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="TOPRINT"> <Setter Property="Text" Value="ÀI" /> <Setter Property="ToolTip" Value="À IMPRIMER" /> <Setter Property="Background" Value="{StaticResource YellowBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="PAID"> <Setter Property="Text" Value="P" /> <Setter Property="ToolTip" Value="PAYÉE" /> <Setter Property="Background" Value="{StaticResource PurpleBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="PARTIALLYPAID"> <Setter Property="Text" Value="PP" /> <Setter Property="ToolTip" Value="PAYÉE PARTIELLEMENT" /> <Setter Property="Background" Value="{StaticResource VeryLightPurpleBackgroundBrush}" /> </DataTrigger> <DataTrigger Binding="{Binding Statut}" Value="CREDIT"> <Setter Property="Text" Value="A" /> <Setter Property="ToolTip" Value="CREDIT" /> <Setter Property="Background" Value="{StaticResource BlueGreenBackgroundBrush}" /> </DataTrigger> </Style.Triggers> </Style> </TextBlock.Style> </TextBlock> </DataTemplate> </telerik:GridViewDataColumn.CellTemplate> </telerik:GridViewDataColumn> <telerik:GridViewDataColumn Header="" Width="auto" DataMemberBinding="{Binding Number}" IsReadOnly="True"/> <telerik:GridViewDataColumn Header="Nom/Prénom" Width="auto" MinWidth="100" DataMemberBinding="{Binding CustomerFullName}" IsReadOnly="True"/> <telerik:GridViewDataColumn Header="Date" Width="auto" MinWidth="100" DataMemberBinding="{Binding Date, StringFormat={}{0:dd/MM/yyyy}}" IsReadOnly="True" SortingState="Ascending"/> <telerik:GridViewDataColumn Header="Montant" Width="auto" MinWidth="100" DataMemberBinding="{Binding Amount, StringFormat={}{0:C}}" IsReadOnly="True"/> <telerik:GridViewDataColumn Header="Trajet" Width="*" MinWidth="100" DataMemberBinding="{Binding Trip}" IsReadOnly="True"/> <telerik:GridViewDataColumn Header="Vehicule" Width="auto" MinWidth="100" DataMemberBinding="{Binding Vehicle}" IsReadOnly="True"/> <telerik:GridViewDataColumn Header="Raison" Width="auto" MinWidth="100" DataMemberBinding="{Binding Reason}" IsReadOnly="True"/> </telerik:RadGridView.Columns> <telerik:RadGridView.GroupDescriptors> <telerik:ColumnGroupDescriptor Column="{Binding Columns[\MarketName\], ElementName=GridViewListingNumberList}" /> <telerik:ColumnGroupDescriptor Column="{Binding Columns[\PayerName\], ElementName=GridViewListingNumberList}" /> <telerik:ColumnGroupDescriptor Column="{Binding Columns[\PeriodicityName\], ElementName=GridViewListingNumberList}" /> <telerik:ColumnGroupDescriptor Column="{Binding Columns[\MarketBatchName\], ElementName=GridViewListingNumberList}" /> <telerik:ColumnGroupDescriptor Column="{Binding Columns[\CompanyName2\], ElementName=GridViewListingNumberList}" /> </telerik:RadGridView.GroupDescriptors></telerik:RadGridView>
v.2018.1.220.45
Any Idea ?
thanks.
https://i.imgur.com/XGtKWeK.png
here , a gif of the issue : https://imgur.com/a/mNGwYA7

Hi Team,
I was using Q2 2010 SP2 - 2010.2.924.40 version and in that I was using RadGridview ScrollIntoView method to scroll to the last record.
It was only taking around 30 seconds for 1000 records
Now we updated to latest version 2018.2.515.45 version now with same code it is taking more than 1 minutes to autoscroll to last record.
Xaml Code:
<telerik:RadGridView Grid.Row="1" Grid.Column="0" Name="EmployeeSheetGrid" Height="300" CanUserInsertRows="False" ItemsSource="{Binding Path=WorkItems}" ColumnWidth="*" AutoGenerateColumns="False" ScrollMode="RealTime" CanUserReorderColumns="False" DataLoadMode="Synchronous" CanUserSortColumns="False" CanUserFreezeColumns="False" ShowGroupPanel="False" IsReadOnly="True" >
Xaml.cs record.
public class Employee { public int EmpId { get; set; } public string Name { get; set; } public string Address { get; set; } public string State { get; set; } public String Country { get; set; } public DateTime CurrentDate { get; set; } }
EmployeeList having 1000 records
employeeList.OrderBy(i => i.EmpId).ToList().ForEach(s => { EmployeeSheetGrid.ScrollIntoView(s); });
Please provide solution for the issue.
Thanks
I am using ChartView Telerik WPF Library. I want the points to get bigger when the user hovers over them. But for some reason it is not working as expected. The Ellipse gets bigger but it does not resize correctly. But I don't understand why. The other properties as border color and thickness are working correctly. Can someone tell me what am I missing here ?
This is how it looks currently(Look at the gif)
Here is the source code:
private FrameworkElementFactory AddPointsToSeries(KeyValuePair<ChartSerie, List<ChartDataPoint>> chartSeries, int colorPaletteIndex) { var seriesPredefinedColor = this.ChartBase.Palette.GlobalEntries[colorPaletteIndex].Fill; FrameworkElementFactory frameworkElement = new FrameworkElementFactory(typeof(Ellipse)); frameworkElement.SetValue(Ellipse.FillProperty, ColorService.BrushFromHex(chartSeries.Key.ColorHex) ?? seriesPredefinedColor); frameworkElement.SetValue(Ellipse.HeightProperty, 9.0D); frameworkElement.SetValue(Ellipse.WidthProperty, 9.0D); frameworkElement.AddHandler(Ellipse.MouseEnterEvent, new MouseEventHandler((sender, args) => { Ellipse ellipse = (Ellipse)sender; ellipse.Stroke = ColorService.BrushFromHex(ColorService.BlendHex((chartSeries.Key.ColorHex ?? ColorService.BrushToHex(seriesPredefinedColor)), "#000000", 0.4)); // this is not correctly applied! ellipse.Width = 15; ellipse.Height = 15; ellipse.StrokeThickness = 2; })); frameworkElement.AddHandler(Ellipse.MouseLeaveEvent, new MouseEventHandler((sender, args) => { Ellipse ellipse = (Ellipse)sender; ellipse.Height = 8; ellipse.Width = 8; ellipse.Stroke = null; })); return frameworkElement; } // Here I create the Line Series and here I use the AddPointsToSeries Method private LineSeries CreateLineSeries(KeyValuePair<ChartSerie, List<ChartDataPoint>> chartSeries, ChartLegendSettings legendSettings, int colorPaletteIndex) { FrameworkElementFactory addPoints = AddPointsToSeries(chartSeries, colorPaletteIndex); var lineSerie = new LineSeries() { VerticalAxis = CreateMultipleVerticalAxis(chartSeries, colorPaletteIndex, out var multipleVerticalAxis) ? multipleVerticalAxis : null, ZIndex = 150, // the line series should always be displayed on top of other series. StrokeThickness = 3.5, LegendSettings = (SeriesLegendSettings)legendSettings, Opacity = 0.8, StackGroupKey = chartSeries.Key.Group, CombineMode = string.IsNullOrEmpty(chartSeries.Key.Group) ? ChartSeriesCombineMode.None : ChartSeriesCombineMode.Stack, PointTemplate = new DataTemplate() { VisualTree = addPoints, }, }; // this is the color of line series if (chartSeries.Key.ColorHex != null) { lineSerie.Stroke = (SolidColorBrush)(new BrushConverter().ConvertFrom(chartSeries.Key.ColorHex)); } foreach (ChartDataPoint serie in chartSeries.Value) { lineSerie.DataPoints.Add(new CategoricalDataPoint() { Category = serie.XPoint.Label, Value = (double?)serie.Value, }); } return lineSerie; }
Hi,
The scrolling in the RADTileView control is not working out nicely, the offset on a single button click or mousewheel roll makes the page scroll more than needed.So assuming a page is displaying 25 lines a screen, after scrolling minimum it would be the 30th (i.e. not the 26 line) at the top. Thus the user would miss some content and would need to scroll back.
After going through the forums I have been able to fix this for the mousewheel using the code
private void ScrollViewer_MouseWheel(object sender, System.Windows.Input.MouseWheelEventArgs e){ ScrollViewer scv = this.ctrlRadTileView.ChildrenOfType<ScrollViewer>().FirstOrDefault(); scv.ScrollToVerticalOffset(scv.VerticalOffset - e.Delta); e.Handled = true;}However when the scrollbar buttons are clicked they still continue to have the wrong scroll effect. Is there any way to handle the scrollbar button clicked event or change the vertical offset property?
There is the ScrollViewer.ScrollInfo.VerticalOffset property but the scroll info object is not accessible.

In RadDock for WPF it is possible to set the DraggedElementVisualCue / DraggedElementVisualCueTemplate when using RadDocking.DragDropMode = Deferred.
<ControlTemplate x:Key="DraggedElementVisualCueTemplate"> <Grid Width="300" Height="200"> <Border Margin="0 0 4 4" CornerRadius="1" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" /> <Border Margin="0 0 4 4" Padding="10"> <TextBlock Text="{Binding Title}" Foreground="{StaticResource IconForegroundLight}" Margin="{TemplateBinding Padding}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Border> </Grid></ControlTemplate><docking:ObjectToTypeStringConverter x:Key="ObjectToTypeStringConverter"/><Style TargetType="telerik:DraggedElementVisualCue"> <Setter Property="Foreground" Value="{StaticResource IconForegroundLight}"/> <Setter Property="BorderBrush" Value="{DynamicResource AccentColorBrush}"/> <Setter Property="Background" Value="{StaticResource HeaderBackgroundBrush}"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="BorderThickness" Value="2"/> <Setter Property="Margin" Value="10 0 0 0"/> <Setter Property="Padding" Value="6 2"/></Style>
So far so good :)
What I'd like to do is to is have a different VisualCue template for certain pane types (e.g. depending on DataContext type, or Pane Type itself)
Any ideas how?
DraggedElementVisualCue.DataContext is of type DockingDragDropPayload. There is a Pane property in there but it's private ... so the data exists just not accessible.
Hi Telerik,
I'm using a RadDiagram and I want to change the behavior of the SettingsPane visibility.
Indeed, when the Zoom in the RadDiagram changed, the SettingsPane button visibility is changed to be hidden.
I try to implement this code :
<view:MirBuilderDiagram x:Name="myMirBuilderDiagram" Grid.Row="2" primitives:BackgroundGrid.IsGridVisible="False" primitives:BackgroundPageGrid.IsGridVisible="False" ActiveTool="{Binding ActiveTool, Mode=TwoWay}" DataContext="{Binding Tag}" ItemsChanged="MirBuilderDiagram_ItemsChanged" ScrollViewer.HorizontalScrollBarVisibility="auto" ScrollViewer.VerticalScrollBarVisibility="auto" SelectedItem="{Binding SelectedShape, Mode=OneWayToSource}" FontSize="9" Telerik:DiagramSurface.IsVirtualizing="False" SnapX="4" SnapY="4" ConnectionBridge="Bow" ConnectionStyle="{StaticResource RadDiagramConnectionStyle_RotateText}" CommandExecuted="myMirBuilderDiagram_CommandExecuted"> <primitives:ItemInformationAdorner.AdditionalContent> <extensions:SettingsPane x:Name="mySettingPane" Diagram="{Binding ElementName=myMirBuilderDiagram}" Loaded="mySettingPane_Loaded" /> </primitives:ItemInformationAdorner.AdditionalContent></view:MirBuilderDiagram>
Private Sub mySettingPane_Loaded(sender As Object, e As RoutedEventArgs) Dim settingPane As SettingsPane = TryCast(sender, SettingsPane) If settingPane IsNot Nothing Then Dim informationAdorner As ItemInformationAdorner = settingPane.ParentOfType(Of ItemInformationAdorner)() If informationAdorner IsNot Nothing Then AddHandler informationAdorner.IsAdditionalContentVisibleChanged, AddressOf InformationAdorner_IsAdditionalContentVisibleChanged End If End IfEnd SubPrivate Sub InformationAdorner_IsAdditionalContentVisibleChanged(ByVal sender As Object, ByVal e As EventArgs) Dim informationAdorner As ItemInformationAdorner = TryCast(sender, ItemInformationAdorner) If informationAdorner IsNot Nothing Then If Me.myMirBuilderDiagram.SelectedItem IsNot Nothing Then If Not informationAdorner.IsAdditionalContentVisible Then informationAdorner.IsAdditionalContentVisible = True End If End If End IfEnd Sub
The problem is at the bold line, because the "Setter is not accessible". I try to create an inherit class but the Setter is never accessible.
Do you know how I can keep the SettingsPane button visibility to Visible when the zoom changing (but keep the default behavior when SelectedItem changed, etc..) ?
Thank you.