Questions on UI for WPF Forum

5 answers

479 views

Hello

I try to use the RadPanelBar with a Binding as ItemSource, but get an unexpected result. Without binding I would use it like this:

    
            <telerik:RadPanelBar> 
        
                <telerik:RadPanelBarItem> 
        
                    <telerik:RadPanelBarItem.Header> 
        
                        <Label Content="Header 1"/> 
        
                    </telerik:RadPanelBarItem.Header> 
        
                    <Label Content="Content 1"/> 
        
                </telerik:RadPanelBarItem> 
        
            </telerik:RadPanelBar>

That is no problem and looks exactly as expected. But as soon as I use it like this:

    
            <telerik:RadPanelBar Name="AttributeSetPanelBar" ItemsSource="{Binding}"> 
        
                <telerik:RadPanelBar.Resources> 
        
                    <DataTemplate DataType="{x:Type wrp:AttributeSet}"> 
        
                        <telerik:RadPanelBarItem> 
        
                            <telerik:RadPanelBarItem.Header> 
        
                                <Label Content="{Binding Name}"/> 
        
                            </telerik:RadPanelBarItem.Header> 
        
                            <Label Content="Content"/> 
        
                        </telerik:RadPanelBarItem> 
        
                    </DataTemplate> 
        
                </telerik:RadPanelBar.Resources> 
        
            </telerik:RadPanelBar>

and set it's DataContext to a List of objects (in this case AttributeSet), it changes its behaviour! Now the header includes the whole content, and the content itself (the secont Label) is also displayd as Header.
Am I doing something wrong, or is this a bug?

Regards
Simon

PanelBar

answered on 22 Nov 2010

8 answers

1.2K+ views

change Datatemplate from code behind

Hello Telerik,

I'm trying to use visual helper to fine and change the textblock in the ContentPresenter in the TileViewItem

RadTileViewItem myRadTileViewItem =(RadTileViewItem)(RadTileView1.ItemContainerGenerator.ContainerFromItem(RadTileView1.Items.CurrentItem));

// Getting the ContentPresenter of RadTileView1

ContentPresenter myContentPresenter = FindVisualChild<ContentPresenter>(RadTileView1);

// Finding textBlock from the DataTemplate that is set on that ContentPresenter

DataTemplate myDataTemplate = myContentPresenter.ContentTemplate;

TextBlock myTextBlock = (TextBlock)myDataTemplate.FindName("Datext", myContentPresenter);

// Do something to the DataTemplate-generated TextBlock

this.Datext.Text = 5;

<DataTemplate x:Key="MyDataTemplate">

<StackPanel>

<TextBlock x:Name="Datext" FontSize="18" Text="{Binding}" />

<TextBox x:Name="Datext1" FontSize="10" Text="5 KillDate Items" />

</StackPanel>

</DataTemplate>

private childItem FindVisualChild<childItem>(DependencyObject obj)

where childItem : DependencyObject

{

for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)

{

DependencyObject child = VisualTreeHelper.GetChild(obj, i);

if (child != null && child is childItem)

return (childItem)child;

else

{

childItem childOfChild = FindVisualChild<childItem>(child);

if (childOfChild != null)

return childOfChild;

}

return null;

}

Any thoughts/

Regards,
Rick

TileView

answered on 22 Nov 2010

1 answer

56 views

System.Web Assembly Error

Following an update to Rad controls for WPF Q3 2010, we've begun to receive the following error: "Could not load file or assembly 'System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=<hex string>' or one of its dependencies. The system cannot find the file specified. / [OK]"

Platform: Windows 7
NET Framework = Microsoft .NET Framework 4 Client Profile

Further investigation has revealed the the error is resolved when ..NET Framework 4.0 Extended is applied. Is this a known byproduct of the Q3 release of RAD for WPF? If so, is there a way to suppress this additional requirement?

Thanks!

David Stickney

General Discussions

answered on 22 Nov 2010

2 answers

152 views

Supporting format YYYYMMDD

Hi!

Is it possible to configure/change the RadDatePicker to support the dateformat YYYYMMDD (no dashes)?

DatePicker

answered on 22 Nov 2010

3 answers

214 views

Binding Group for RadGridView

I have a RadGridView that I would like users to edit as much as they want, but not to save any changes back to the binding object until the user clicks the save button. For textboxes and such I have used binding groups, but this approach does not seem to work for the RadGridView.

What is the best approach for delayed edits for the entire grid?

GridView

answered on 22 Nov 2010

1 answer

86 views

Theming Calendar of DatePicker

I would like to create a custom theme for the calendar of the RadDatePicker. Theming the RadScheduler was easy. But how is this done on the Calendar?

DatePicker

answered on 22 Nov 2010

1 answer

86 views

Show Calendar on MouseDoubleClick

I´d like to know if it is possible to show the calendar on mousedoubleclick event. I thought this was easy to implement, but I didn´t find any method the would solve my problem.

DateTimePicker

answered on 22 Nov 2010

6 answers

205 views

[Solved] RadGridView weird behavior

Hi,
I experience a weird behavior of the RadGridView with row and column virtualization turned on. At random times, upon setting the ItemsSource property, a single selected row remains 'hanging' in the empty area far down the last row in the grid. I have attatched a screenshot with visual representation of the problem. Turning the virtualization off solves this issue but it's inacceptable due to the large amount of the data that used with the grid. I am using version Q1 SP1 2010 of the grid.

GridView

answered on 22 Nov 2010

1 answer

119 views

How to animate a RadPane in a RadDock (Change Color During Save Operation)

Hello,
We have an application with multiple RadPanes open at the same time, where the user can save data in their active pane/view with a ribbon level save button/command. Due to this structure it is sometimes hard for the user's to visually see which pane is being saved other than knowing it is the active pane.

I wanted to know if there is a way to animate or change the color of a RadPane temporarily while an action is occuring, e.g. change the color to yellow while a save operation is occuring, green if it is successful, and red if the operation fails...but only for a few moments to indicate to them that that specific pane saved.

Is there some kind of behavior we could attach to for this?

Docking