Questions on UI for WPF Forum

3 answers

125 views

Memory leak?

Hello,
In my application I add a usercontrol containing raddocking to the visual tree. When I remove this usercontrol from the visual tree it stays in memory because it seems that raddocking still has a reference to something. See example code below.

    
            <UserControl xmlns:my="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Docking"  x:Class="UserControl1" 
        
                         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"  
        
                         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"  
        
                         mc:Ignorable="d"  
        
                         d:DesignHeight="300" d:DesignWidth="300"> 
        
                <Grid> 
        
                        <my:RadDocking></my:RadDocking> 
        
                </Grid> 
        
            </UserControl>

    
            <Window x:Class="MainWindow" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                Title="MainWindow" Height="350" Width="525"> 
        
                <Grid> 
        
                    <DockPanel  Name="DockPanel1"> 
        
                        <StackPanel Orientation="Horizontal" DockPanel.Dock="top" HorizontalAlignment="Center" VerticalAlignment="Top" > 
        
                            <Button Name="Add" Click="Add_Click" Margin="5">Add</Button> 
        
                            <Button Name="Remove" Click="Remove_Click" Margin="5" >remove</Button> 
        
                       </StackPanel> 
        
                    </DockPanel> 
        
                </Grid> 
        
            </Window>

    
            Class MainWindow  
        
                Private uc As New UserControl1 
        
                Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) 
        
                    If Not DockPanel1.Children.Contains(uc) Then 
        
                        DockPanel1.Children.Add(uc) 
        
                    End If 
        
                End Sub 
        
                Private Sub Remove_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) 
        
                    If DockPanel1.Children.Contains(uc) Then 
        
                        DockPanel1.Children.Remove(uc) 
        
                    End If 
        
                    uc = Nothing 
        
                End Sub 
        
            End Class

Docking

answered on 23 Feb 2010

3 answers

97 views

RadSplitContainer.ChildrenOfType

hi,

i have this sample code:

                    RadPane FormRadPane = new RadPane() { Header = "Not Document Pane", CanDockInDocumentHost = false };         
            TextBlock txtBlock = new TextBlock();         
            txtBlock.Text = "This Pane Cannot be docked in to document host";         
            FormRadPane.Content = txtBlock;         
                     
            RadPaneGroup NewPaneGroup = new RadPaneGroup();         
            NewPaneGroup.Items.Add(FormRadPane);         
                     
            RadSplitContainer FormSplitContainer = new RadSplitContainer();         
            FormSplitContainer.InitialPosition = DockState.FloatingDockable;         
            FormSplitContainer.Items.Add(NewPaneGroup);         
                     
            MainDockingControl.Items.Add(FormSplitContainer);         

i've put a breakpoint on the last code row.

in the immediate window in run time i write:

                    FormSplitContainer.ChildrenOfType<RadPane>()         

and it i get no items i.e. "Items Count = 0".

meaning - the split container doesn't contain any panes.

is that a bug?

Docking

answered on 23 Feb 2010

3 answers

155 views

DocumentHost with no panes

hi,
i have a simple DockControl XAML:

    
            <radDock:RadDocking FlowDirection="RightToLeft" DockPanel.Dock="Bottom"> 
        
                            <radDock:RadDocking.DocumentHost> 
        
                                <radDock:RadPaneGroup> 
        
                                    <radDock:RadPane Header="Bottom Docked Control - Pane #1" CanFloat="true"> 
        
                                        <TextBlock>Bottom Docked Control - Pane #1</TextBlock> 
        
                                    </radDock:RadPane> 
        
                                    <radDock:RadPane Header="Bottom Docked Control - Pane #2" CanFloat="true"> 
        
                                        <TextBlock>Bottom Docked Control - Pane #2</TextBlock> 
        
                                    </radDock:RadPane> 
        
                                    <radDock:RadPane Header="Bottom Docked Control - Pane #3" CanFloat="true"> 
        
                                        <TextBlock>Bottom Docked Control - Pane #3</TextBlock> 
        
                                    </radDock:RadPane> 
        
                                </radDock:RadPaneGroup> 
        
                            </radDock:RadDocking.DocumentHost> 
        
                        </radDock:RadDocking>

what happens is when i float (undock) all of the panes from the DocumentHost i can't dock them again in the DocumentHost
only dock them to four sides, the compass doesn't give me the option, it's like the DocumentHost Disappear when it has no Panes
docking inside it, is there a solution to this situation or do i have to make sure that a least on pane will stay in the DocumentHost
so i can dock to it?

thank so much in advance.

Docking

answered on 23 Feb 2010

2 answers

85 views

'FindNewRow' Equivalent for WPF Gridview

Hi All,
Currently we are creating unified code for wpf and silverlight . Here currently am stuck with an issue . In Telerik Silverlight Gridview is having FindNewRow Method , But it is found to be missing in wpf gridview .
1. what is the wpf equivalent of findnewrow?
2.Record Property is missing in wpfgrid, will it can be replaced using items property?
any help on this will be appreciated
Regards
Anju

GridView

answered on 23 Feb 2010

1 answer

157 views

Remove selected item highlight

How do I remove the yellow background from the selected item? Below is the current control I am using

                    <telerik:RadCarousel x:Name="itemCarousel" HorizontalAlignment="Stretch"         
                            VerticalAlignment="Stretch" Height="500" Width="834" HorizontalScrollBarVisibility ="Hidden"  Loaded="itemCarousel_Loaded" AutoGenerateDataPresenters="True">         
                                <telerik:RadCarousel.Resources>         
                                    <Style x:Key="bundlePanel" TargetType="{x:Type telerik:RadCarouselPanel}" >         
                                        <EventSetter Event="TopContainerChanged" Handler="panel_TopContainerChanged"/>         
                                        <Setter Property="ItemsPerPage" Value="3"/>         
                                        <Setter Property="IsOpacityEnabled" Value="False"/>         
                                        <Setter Property="PathPadding" Value="0,0,0,100"/>         
                                    </Style>         
                     
                                </telerik:RadCarousel.Resources>         
                            </telerik:RadCarousel>         

Thanks

Carousel

answered on 23 Feb 2010

0 answers

104 views

slider Template issue

Hi

i need to create make my slider dynamic. so i need to change my maximum value for each 5 mins, so am trying to bind my maximum and minimum value(DateTime) from database. here am facing problem,that i cannot bind the values in minimum,maximum and in the textblock, i cant even call the biniding function here, please tel me how to call and bind my values to the slider

<

telerik:RadSlider Minimum="{Binding {StaticResource MinValue}}" Maximum="{Binding {StaticResource MaxValue}}" TickFrequency="1" TickPlacement="BottomRight" IsSnapToTickEnabled="True" Margin="133,175,114,204">

<telerik:RadSlider.TickTemplate>

</StackPanel>

</DataTemplate>

</telerik:RadSlider.TickTemplate>

</telerik:RadSlider>

Slider

asked on 23 Feb 2010

1 answer

87 views

RadPanelBar layout issue

With the new beta, setting the VerticalAlignment and/or HorizontalAlignment to Stretch no longer allows the control to fill inside the parent control.

    
            <Telerik:RadPanelBar Orientation="Horizontal" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" ExpandMode="Single"  >

General Discussions

answered on 22 Feb 2010

1 answer

149 views

Scrollbar inconsistency & filter problem

I am running 2009.3.1322.35. I have a RadGridView in a StackPanel in a Popup. My problem is that the first time the popup appears the horizontal scrollbar for the RadGridView is either not visible or is visible but does not allow one to scroll and see all of the text. The scrollbar works properly the second time the popup is visible.

<Popup IsOpen="{Binding Path=ValidSoftwareIsOpen, Mode=OneWay}"

AllowsTransparency="True"

PopupAnimation="Slide"

Placement="Center"

Width="Auto"

Height="Auto"

PlacementTarget="{Binding ElementName=avionicsviewBorder }"

Name="validSoftware"

StaysOpen="True"

>

<Border BorderThickness="5" BorderBrush="Black" Opacity="1" Width="Auto"

Height="Auto" CornerRadius="5,5,5,5">

Valid Software

</Label>

</Border>

<telerik:RadGridView

Name="ValidSoftwareListView"

ItemsSource="{Binding Path=AircraftSoftwareValidCollection}"

CanUserInsertRows="False"

SnapsToDevicePixels="True"

HeaderRowStyle="{DynamicResource radGridViewHeaderStyle}"

AutoGenerateColumns="False"

IsReadOnly="True"

Width="300"

ColumnsWidthMode="Auto"

telerik:StyleManager.Theme="Office_Black"

FontSize="12"

>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="Name" UniqueName="SoftwareName" DataMemberBinding="{Binding Path=Name}" Width="Auto"/>

<telerik:GridViewDataColumn Header="CSCI" UniqueName="SoftwareCsci" DataMemberBinding="{Binding Path=Csci}" Width="Auto"/>

<telerik:GridViewDataColumn Header="Current" UniqueName="SoftwareCurrent" DataMemberBinding="{Binding Path=Current}" Width="Auto"/>

<telerik:GridViewDataColumn Header="Replacement" UniqueName="SoftwareReplacement" DataMemberBinding="{Binding Path=Replacement}" Width="Auto"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

<Button Template="{DynamicResource GlassButton}" Content="Ok" HorizontalAlignment="Right"

VerticalAlignment="Center"

Command="{Binding Path=OkCommand}" Style="{DynamicResource bottomButtonStyle}"/>

</StackPanel>

</Border>

</Popup>

I tried replacing the StackPanel with a grid with no sucess.

Another issue I have is that if my application window is full screen and I have my popup centered in the window and I click on a filter the filter popup does not show all the fields. This is not a problem when the application window is not full screen.

Donald

GridView

answered on 22 Feb 2010

1 answer

403 views

How to change row indicator in header column?

I created some filter rows in the header using a custom HeaderCellStyle.

How can I write some text in the row indicator column of header rows?
See picture attached.

I want to show the text "or" in front of the second and third filter rows.

GridView