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I recently wanted to add "headers" to my ListBox and was able to do so thanks to the following post:

http://www.telerik.com/forums/can-a-listbox-have-headers

However, now I haven't been able to have the entries in the listbox refresh when the underlying data changes. It seemed to work just find before the "headers" were added. I have attached the original code when the data binding seemed to work fine:

<telerik:RadListBox HorizontalAlignment="Left" Height="235" Margin="24,13,0,0" VerticalAlignment="Top" Width="510" ItemsSource="{Binding Associates, UpdateSourceTrigger=PropertyChanged}" SelectedIndex="{Binding AssocIdx, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" DisplayMemberPath="display">
        </telerik:RadListBox>

and the code where the headers works fine (but data binding doesn't seem to work when the data changes...):

<telerik:RadListBox HorizontalAlignment="Left" Height="235" Margin="24,13,0,0" VerticalAlignment="Top" Width="510" ItemsSource="{Binding Source={StaticResource groups}, UpdateSourceTrigger=PropertyChanged}" SelectedIndex="{Binding AssocIdx, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" DisplayMemberPath="">
            <telerik:RadListBox.ItemTemplate>
                <DataTemplate>
                    <VirtualizingStackPanel>
                        <TextBlock Text="{Binding display}" />
                    </VirtualizingStackPanel>
                </DataTemplate>
            </telerik:RadListBox.ItemTemplate>
            <telerik:RadListBox.GroupStyle>
                <GroupStyle HeaderTemplate="{StaticResource groupTemplate}" />
            </telerik:RadListBox.GroupStyle>
        </telerik:RadListBox>

Polya
Telerik team
 answered on 23 Dec 2015
3 answers
141 views

Hi all,

  I implement row drag drop function, I got a demo source code in somewhere forum(), the problem is:

In demo source code, Telerik tersion is 2009.1.526.35, below code works OK

private void RowMouseMove(object sender, MouseEventArgs e)
{
//Some code
RadItemsControl itemsControl = this.gridView.ItemsControl;
this.currentDropIndex = itemsControl.Records.IndexOf(row.Record);
//Some code
}

But currently my solution uses a newer Telerik version, 2014.1.331.40, RadItemsControl could not be found. 

How can I find the similar control to replace the old one? Or any idea to get current drop index here?

 Thanks.

 

Quang Khải
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 answered on 23 Dec 2015
3 answers
79 views
I'm using the RadDesktopAlert to display notifications in my WPF app. When I open a RadWindow while a RadDesktopAlert is being displayed, the RadWindow disappears when the RadDesktopAlert disappears. I don't think the RadWindow is being closed or minimized, as neither of the associated events are fired when the RadWindow disappears. Is this possibly a bug in the RadDesktopAlert?
Kalin
Telerik team
 answered on 23 Dec 2015
0 answers
294 views

I'm using a simple RadMenu and I am having a bit of trouble getting it to look correctly in the application.

It seems to be adding a small padding area to the surrounding the first menu item. (I've attached an image of how it renders in the application)

Here is the XAML: 

<DockPanel Height="40" >
    <telerik:RadMenu Height="40" Width="100" HorizontalAlignment="Right" VerticalAlignment="Center" FlowDirection="RightToLeft" IconColumnWidth="0" Padding="0" Margin="0">
        <telerik:RadMenuItem Width="100" Header="Menu" Click="RadMenuItem_Click" HorizontalAlignment="Right" Margin="0,0,-2,0" Height="40" >
            <telerik:RadMenuItem Header="Main" Height="40"/>
            <telerik:RadMenuItem Header="Alarms" Height="40"/>
            <telerik:RadMenuItem Header="Configuration" Height="40"/>
            <telerik:RadMenuItem Header="Exit" Height="40"/>
        </telerik:RadMenuItem>
    </telerik:RadMenu>
</DockPanel>

Also, I don't want the arrow icon to appear, but I don't seem to be able to get rid of it.

I'm using the Windows8Touch theme.

Any help would be appreciated.

 

paully21
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 asked on 22 Dec 2015
2 answers
443 views

I'm looking for a way to change the background of the title bar of a RadWindow.Alert.

I'm looking to mimic the affect that line one has on the title bar without changing the accent color for ALL items.

Ideally, I'd like to be able to pass in the Colors.Red or set a Style Resource somewhere.

 

01.Windows8TouchPalette.Palette.AccentColor = Colors.Red;
02.RadWindow.Alert(new DialogParameters()
03.{
04.    Theme = new Windows8TouchTheme(),
05.    Content = GetAlarmDialogContent(),
06.    Closed = OnAlarmDialogClosed,
07.    OkButtonContent = "Acknowledge",
08.    Owner = this
09.});
 

 

paully21
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 answered on 22 Dec 2015
3 answers
573 views
Hi,

it is posible to use RadListbox to reorder items by drag&drop whihe wrappanel is set as ItemsPanel?

<telerik:RadListBox ItemsSource="{Binding Items}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
    <telerik:RadListBox.ItemContainerStyle>
      <Style TargetType="telerik:RadListBoxItem" BasedOn="{StaticResource RadListBoxItemStyle}">
        <Setter Property="telerik:DragDropManager.AllowCapturedDrag" Value="True" />
      </Style>
    </telerik:RadListBox.ItemContainerStyle>
     
    <telerik:RadListBox.DragVisualProvider>
      <telerik:ScreenshotDragVisualProvider />
    </telerik:RadListBox.DragVisualProvider>
     
    <telerik:RadListBox.DragDropBehavior>
      <telerik:ListBoxDragDropBehavior AllowReorder="True"  />
    </telerik:RadListBox.DragDropBehavior>
 
    <telerik:RadListBox.ItemsPanel>
      <ItemsPanelTemplate>
        <WrapPanel />
      </ItemsPanelTemplate>
    </telerik:RadListBox.ItemsPanel>
Polya
Telerik team
 answered on 22 Dec 2015
2 answers
154 views

Hi,

I am using ScatterSplineSeries and I have defined tooltip template in PointTemplate. My requirement is such that I do not want to see the data points visually but on mouse hover on point tooltip to be shown. Here is my XAML. I tried setting the Visibility property of the Ellipse but then tooltip also stopped showing. How to acheive this ? Please help me.

<telerik:ScatterSeriesDescriptor ItemsSourcePath="Points" YValuePath="YValue" XValuePath="XValue">
                    <telerik:ScatterSeriesDescriptor.Style>
                        <Style TargetType="telerik:ScatterSplineSeries">
                            <Setter Property="StrokeThickness" Value="{Binding StrokeThickness}"></Setter>
                            <Setter Property="Stroke" Value="{Binding Color}"></Setter>
                            <Setter Property="Visibility" Value="{Binding IsVisible,Converter={StaticResource BooleanToVisibilityConverter}}"></Setter>
                            <Setter Property="DisplayName" Value="{Binding Name}"></Setter>
                            <Setter Property="PointTemplate">
                                <Setter.Value>
                                    <DataTemplate>
                                        <Ellipse Width="10" Height="10"  Fill="{DynamicResource BRUSH_SELECTION}">
                                            <Ellipse.ToolTip>
                                                <ToolTip>
                                                    <ToolTip.Style>
                                                        <Style TargetType="ToolTip">
                                                            <Style.Setters>
                                                                <Setter Property="Template">
                                                                    <Setter.Value>
                                                                        <ControlTemplate>
                                                                            <Grid Background="{DynamicResource BRUSH_TOOLTIP}" HorizontalAlignment="Right" Width="120" Height="70">
                                                                                <StackPanel Margin="5" Orientation="Vertical">
                                                                                    <StackPanel Width="{TemplateBinding Width}" Orientation="Horizontal" Background="{DynamicResource BRUSH_TOOLTIP}" Margin="5">
                                                                                        <TextBlock Text="Volume: " FontWeight="Bold"/>
                                                                                        <TextBlock Text="{Binding XValue}" FontWeight="Bold"/>
                                                                                        <TextBlock Text=" %" FontWeight="Bold"/>
                                                                                    </StackPanel>
                                                                                    <StackPanel Width="{TemplateBinding Width}" Orientation="Horizontal" Background="{DynamicResource BRUSH_TOOLTIP}" Margin="5">
                                                                                        <TextBlock Text="Dose: " FontWeight="Bold" />
                                                                                        <TextBlock Text="{Binding YValue}" FontWeight="Bold" />
                                                                                        <TextBlock Text=" Gy" FontWeight="Bold"/>
                                                                                    </StackPanel>
                                                                                </StackPanel>
                                                                            </Grid>
                                                                        </ControlTemplate>
                                                                    </Setter.Value>
                                                                </Setter>
 
                                                            </Style.Setters>
                                                        </Style>
                                                    </ToolTip.Style>
                                                </ToolTip>
                                            </Ellipse.ToolTip>
                                        </Ellipse>
 
                                    </DataTemplate>
                                </Setter.Value>
                            </Setter>
 
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding IsDashed,Mode=TwoWay}" Value="True">
                                    <Setter Property="DashArray" Value="5"></Setter>
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </telerik:ScatterSeriesDescriptor.Style>
                </telerik:ScatterSeriesDescriptor >

Shilpa
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 answered on 22 Dec 2015
2 answers
374 views

Hi, 

We are using RadMenu on a  solution with wpf and telerik on this way:

Here is the element menu: 

 <telerik:RadMenu x:Name="MenuPrincipal" ItemsSource="{Binding MenuItems}"                         
                         ItemContainerStyle="{StaticResource MenuItemStyle}" >  </telerik:RadMenu> 

Styles:

 <UserControl.Resources>
            <Style x:Key="MenuItemStyle" TargetType="telerik:RadMenuItem">
                <Setter Property="Command" Value="{Binding Command}" />
                <Setter Property="CommandParameter" Value="{Binding CommandParameter}" />
                <Setter Property="Header" Value="{Binding Header}" />
                <Setter Property="ItemsSource" Value="{Binding Items}"/>
                <Setter Property="IsSeparator" Value="{Binding IsSeparator}"/>                              
        </Style>           
    </UserControl.Resources>

The item collection are generated like a ObservableCollection of our own class with header, subitems, and everything it´s working fine. The Menu it´s appearing ok on the screen and showing correctly the childs and parents. The relation between parents and childs inside the RadMenu Items are working fine :)

The problem is... now, i need to add a RadContextMenu on some items of the menu, and i don´t know how to do it. I´m trying to do on several ways, but nothing it´s working properly.

First try:

 <telerik:RadMenu x:Name="MenuPrincipal" VerticalAlignment="Top"  ItemsSource="{Binding MenuItems}"                         
                         ItemContainerStyle="{StaticResource MenuItemStyle}" >                      
                  <telerik:RadMenu.ItemTemplate >
                            <DataTemplate>
                                     <telerik:RadMenuItem Header="{Binding}" ContextMenuOpening="RadMenuItem_ContextMenuOpening" >
                                              <telerik:RadContextMenu.ContextMenu>
                                                <telerik:RadContextMenu>                                                
                                                    <telerik:RadMenuItem Header="{Binding }"/>
                                                </telerik:RadContextMenu>
                                            </telerik:RadContextMenu.ContextMenu>                            
                                    </telerik:RadMenuItem>   
                            </DataTemplate>
                 </telerik:RadMenu.ItemTemplate>-->
            </telerik:RadMenu>

That way, creates the menu item like a button (with a border...) and it´s not responding on click. (If i click outside the border the menu displays). I can Solve with "autoopen", but in that way, when the context menu has showed, the menu closes, also whit "stayopen" property enabled. 

 

Second Try

With codebehind - Trying to add a RadContextMenu on our own class of the menu and binding on  that way <Setter Property="ContextMenu" Value="{Binding ContextMenu}"/> Not succesfull :( 

Also to consider. I need to show the menu only in the final childs, not in the parent menus... 

Any help will be appreciated. 

Thank you, regards. 

 

 

Carlos
Top achievements
Rank 1
 answered on 22 Dec 2015
9 answers
958 views
I'm working with my first RadListBox in WPF. Can it have headers? If so, how is that done?
Kalin
Telerik team
 answered on 22 Dec 2015
11 answers
643 views

Greetings,

I'm doing some experimentation trying to get Catel MVVM framework to work with Raddocking. I'm inheriting from DockingPanesFactory and modifying the RadPane CreatePaneForItem method as shown below:

01.protected override RadPane CreatePaneForItem(object item)
02.        {
03.            Argument.IsNotNull("item", item);
04. 
05.            var viewModel = item as DockViewModelBase;
06.            Type viewModelType = viewModel.GetType();
07. 
08.            GetImpelementedInterface(viewModelType);
09.             
10.            Log.Debug("'{0}' is not null. Constructing pane", (object)viewModel.GetType().Name);
11. 
12.            var pane = (_isImplentingIToolPane) ? new RadPane() : new RadDocumentPane();
13.             
14.            Log.Debug("Constructing instance of view for the pane using injection of data context");
15. 
16.            Type view = _viewLocator.ResolveView(viewModelType);
17. 
18.            pane.DataContext = viewModel;
19.            pane.Content = view;
20.            pane.Header = viewModel.Header;
21.            //pane.IsActive = viewModel.IsActive;
22.            //pane.CanFloat = viewModel.CanFloat;
23.             
24.            Log.Debug("Pane: {0} - DataContext: {1} - View: {2}", pane.Header,pane.DataContext.GetType().Name,view.Name);
25. 
26.            return pane;
27.            //return base.CreatePaneForItem(item);
28.        }

When I check on pane.Content and pane.DataContext I could see that the view model is contained in the DataContext and the view is contained in the Content property as well. However, it's looking like there is an error in binding as I get this message:

1.System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'ElementName=DropDownButtonElement'. BindingExpression:Path=IsChecked; DataItem=null; target element is 'DropDownMenu' (Name='DropDownMenuElement'); target property is 'IsOpen' (type 'Boolean')

 The pane displays fine but without any content. I only get name space of the view inside the pane.

 

Michele
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 answered on 21 Dec 2015
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