Questions on UI for WPF Forum

1 answer

109 views

Question: Virtualization and Column Header Caption Modification

Hello,

I've added some code to my grid's double click event so if a cell is double clicked the column header's caption will be appended with (*). The problem I having occurs when I scroll to the right and than double click the column caption is not modified. If I scroll to right a couple of times and than scroll back to where I double clicked the (*) appears in the column caption.

I am almost certain this is caused by Column Virtualization. Is their anyway to fix this so the (*) appears after I've double clicked?

Thanks

GridView

answered on 05 Feb 2010

9 answers

276 views

WPF Demo Crashes while browsing around

Hello, I just installed the demo. It seems to work fine when I click on an item on the tree list but when I click on another item on the tree list, it crashes. It always crashes when I select my second item but the first item loads fine.

Here's a screenshot: http://img291.imageshack.us/img291/7963/crashwi6.jpg

General Discussions

answered on 05 Feb 2010

2 answers

140 views

Binding a collection to GridViewDataColumn

Hello
I'm binding a IList<BusinessObject> to the GridViewDataColumn through a converter.
Code snippet:

                          <telerik:GridViewDataColumn
                                                        Header="Classes"
                                                        Width="15*"
                                                        UniqueName="AuthorisationClasses"
                                                        DataMemberBinding="{Binding AuthorisationClasses, Converter={StaticResource AuthorisationClassesListConverter}}"

The view gets updated dynamically if I make the AuthorisationClasses an ObservableCollection. I was wondering if I could make the view update dynamically without making it an ObservableCollection. The reason being, AuthorisationClasses is a business entity and all the business entites in our solution are of type List<T>.
Thanks in advance

Regards
Binu

GridView

answered on 05 Feb 2010

4 answers

120 views

Bug: CheckBoxes on Grid turn to True or False

Hello,

I several checkbox columns on my grid and every once in a while a checkbox in one of the rows turns to the word True or False.

Usually when I scroll up or down it will change back to a checkbox but sometimes it won't and when I click on the checkbox that's changed the cell is protected. I have to close the app down.

GridView

answered on 04 Feb 2010

2 answers

296 views

MaxLength and CharacterCasing

When the RadComboBox is in IsEditable mode, how do I set the MaxLength and CharacterCasing properties of the TextBox used for entering data?

ComboBox

answered on 04 Feb 2010

10 answers

289 views

[Solved] Styling the PaneHeader in Blend

Hello,

The moment I try to edit the PaneHeader Style through Blend (Edit Style >create a copy), after putting the PaneHeader WPF component in a window.xaml, it returns "invalid xaml".. see screenshot.

I would like to make them blue, but have a hard time with the theming process.

would you have a custom colour theming of the Radpane working sample as described in the help documentation ?

Cheers

Docking

answered on 04 Feb 2010

3 answers

118 views

More PanelBar commanding

Hi, Im using Prism + Wpf and trying to get the commanding to work on a button i have placed in the panel bar using a datatemplete. Here is a copy of the datatemplate:

<Button Width="140" Height="25" Margin="2"

Tag="{Binding Tag}"

Content="{Binding Title}"

ToolTip="{Binding Description}"

commands:Click.Command="{Binding NavigationBarClickCommand}"

commands:Click.CommandParameter="{Binding Tag}"/>

</StackPanel>

</DataTemplate>

Is this possible, at the moment my command is never getting fired. Or should I be using a different approach?

Thanks, Mark

PanelBar

answered on 04 Feb 2010

3 answers

225 views

3D-Chart crashes but 2D works...

Hi,

i try to render WPF content with telerik chart-controls in VB6. This is possible if you are using the Microsoft Interop Forms Toolkit (http://msdn.microsoft.com/en-us/vbasic/bb419144.aspx). If i'm using the 2D controls everiting is fine. But if I switch to 3D I get a OutOfMemoryException or NullReferenceException.

Here is my XAML:

    
            <UserControl x:Class="UserControl1" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:charts="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Charting">  
        
                <Grid> 
        
                    <charts:RadChart x:Name="MyChart"/>  
        
                </Grid> 
        
            </UserControl>

This is the code-behind from the 2D version:

    
                Public Sub New()  
        
                    ' This call is required by the Windows Form Designer.  
        
                    InitializeComponent()  
        
                    ' Add any initialization after the InitializeComponent() call.  
        
                    MyChart.DefaultSeriesDefinition = New BarSeriesDefinition  
        
                    Dim itemSource As Double() = {5, 9, 17, 10, 11, 3, 12}  
        
                    MyChart.ItemsSource = itemSource  
        
                End Sub

And here is the code-behind from the 3D version:

    
                Public Sub New()  
        
                    ' This call is required by the Windows Form Designer.  
        
                    InitializeComponent()  
        
                    ' Add any initialization after the InitializeComponent() call.  
        
                    MyChart.DefaultSeriesDefinition = New Bar3DSeriesDefinition  
        
                    Dim itemSource As Double() = {5, 9, 17, 10, 11, 3, 12}  
        
                    MyChart.ItemsSource = itemSource  
        
                    AddHandler MyChart.DefaultView.ChartArea.Loaded, AddressOf Me.RadChart_Loaded  
        
                End Sub 
        
                Private Sub RadChart_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)  
        
                    Dim camera As New CameraExtension  
        
                    camera.SpinAxis = SpinAxis.XY  
        
                    camera.ZoomEnabled = True 
        
                    MyChart.DefaultView.ChartArea.Extensions.Add(camera)  
        
                End Sub

The same code works in a normal .NET-project and also in a WinForms-project on the ElementHost.

Best regards,
Dimi

Chart

answered on 04 Feb 2010

3 answers

677 views

Telerik.Windows.QuickStart.dll

Good Morning,

I have been working with the WPF demo/code. It uses

Telerik.Windows.QuickStart.dll extensively and I cannot track what is being done. It hides many aspects, such as page transfers and returns. Is there a place where I can see what is going on?

Take Care,
Dave

GridView

answered on 04 Feb 2010

2 answers

151 views

[Solved] Show a RadGridView as the items list for a RadComboBox

Hi all. I was wondering if it's possible to show the list of items in a RadComboBox by using a RadGridView. In other words, that when the user expands the RadComboBox, the items inside get shown in a RadGridView (with headers). I need this because I got a lot of info to show for each element (item) of the RadComboBox.

Thanks.

Hugo Aristizabal.

ComboBox

answered on 04 Feb 2010