Questions on UI for WPF Forum

1 answer

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Editable TreeViewItems, Hierarchical Data Templates and MVVM

I have a model class, Folder:

public class Folder

{

public string Name { get; set; }

public ObservableCollection<Folder> SubFolders { get; set; }

}

This is exposed to the UI via a view model, the the folder structure is displayed in a RadTreeView using a hierarchical data template and all is well.

I am adding a context menu to each Folder in the tree view, one of the options on the menu is "Rename". When this is clicked, I want the relevant RadTreeViewItem to go into edit mode.

I can add an "IsInEditMode" flag to the Folder, that's not a problem. The Command on the menu item is bound to the command on the view model, and I can get hold of the relevant Folder using a command parameter, that's not a problem.

But how to I set the IsEditable on the hierarchical data template? And how do I bind the IsInEditMode of the TreeViewItem to that of the Folder? Here is my current XAML (which shows a few other things, like a similar structure with the Tag objects:

<telerik:RadTreeView DockPanel.Dock="Top">

<telerik:RadTreeViewItem Header="My Folders" ItemsSource="{Binding Folders}">

<telerik:RadTreeViewItem.ItemTemplate>

<HierarchicalDataTemplate ItemsSource="{Binding SubFolders}" DataType="{x:Type Model:Folder}">

<TextBlock Text="{Binding Name}" />

</HierarchicalDataTemplate>

</telerik:RadTreeViewItem.ItemTemplate>

</telerik:RadTreeViewItem>

</telerik:RadTreeView>

<telerik:RadTreeView DockPanel.Dock="Top">

<telerik:RadTreeViewItem Header="My Tags" ItemsSource="{Binding Tags}">

<telerik:RadTreeViewItem.ItemTemplate>

<HierarchicalDataTemplate ItemsSource="{Binding SubTags}" DataType="{x:Type Model:Tag}">

<TextBlock Text="{Binding Name}" >

<telerik:RadContextMenu.ContextMenu>

<telerik:RadContextMenu>

<telerik:RadMenuItem Header="Rename" Command="{StaticResource renameTagCommand}" CommandParameter="{Binding RelativeSource={RelativeSource Self}, Path=DataContext}"/>

<telerik:RadMenuItem Header="Delete Tag"/>

</telerik:RadContextMenu>

</telerik:RadContextMenu.ContextMenu>

</TextBlock>

</HierarchicalDataTemplate>

</telerik:RadTreeViewItem.ItemTemplate>

</telerik:RadTreeViewItem>

Open to other suggestions. Cheers.

TreeView

answered on 15 Dec 2011

1 answer

122 views

Shading an Area Between Two Grid Lines

I'm using RadChart 2011 Q3. I have a chart with two lines series on it. I would like to add two separate grid lines and shade the area in between. I know how to add the grid lines. But I don't know how (or if it's possible) to shade the entire area between the two grid lines.

Thank you!

Chart

answered on 15 Dec 2011

1 answer

84 views

AppointmentEditingEventArgs in RadScheduleView

Hello,

as stated in this article (http://www.telerik.com/help/wpf/radscheduleview-migration-from-radscheduler.html) the old radscheduler had an property called "AppointmentEditAction" in the AppointmentEditingEventArgs where you could get the type of edit action such as edit, drag or resize. This property is not present in RadScheduleView. However i subscribed to the appointment editing event and i need to act differently on it regarding the edit action such as edit, drag or resize. Is there a way on how i can get the information of what type the edit event is?

thanks in advance

best regards

Matthias

ScheduleView

answered on 15 Dec 2011

4 answers

132 views

Drag drop between surfacelistbox and radscheduleview

Does anyone have any articles or example code were drag drop functionality has been implemented between a surfacelistbox and radscheduleview in WPF? Thanks a lot.

ScheduleView

answered on 15 Dec 2011

1 answer

188 views

Change TimePicker Icon

Is there an easy way to change the icon on the TimePicker control? I looked and couldn't find a quick property to set (e.g. IconPath="MyImage.png" or something).

TimePicker

answered on 15 Dec 2011

2 answers

175 views

Selective context menus

Hi there
I would like to display individual context menus based on whether the user right-clicks an appointment, and empty area, or an empty area between two appointments. What's the best way to accomplish this?

Thanks for your advice
Philipp

ScheduleView

answered on 15 Dec 2011

1 answer

86 views

ColumnDescriptor reverses the order of my groups

Hi, I noticed that when I add a sort descriptor in my xaml, the group order (not the rows in the group) is reversed. What's going on here? Here's the markup:

                      <telerik:RadGridView.GroupDescriptors>
                        <data:GroupDescriptor Member="Checked" />
                    </telerik:RadGridView.GroupDescriptors>
                    <telerik:RadGridView.SortDescriptors>
                        <data:SortDescriptor Member="Name"/>
                    </telerik:RadGridView.SortDescriptors>

GridView

answered on 15 Dec 2011

5 answers

291 views

Unknown error while installing the controls

Hello!
I've got a problem installing telerik ui controls. I've spent my whole day searching for the reason of the problem, but found nothing.
I have downloaded the latest telerik installer (.exe) and tried to install wpf ui controls (I've also tried to install Silverlight controls and had the same result).
After waiting for ~ half an hour after starting the installation process, the window shows "Oops, it seems we've hit an installation problem".
I don't know what to do now.

My machine is running Win7, VS 2010 SP1.
I've tried to start the installer in admin mode, nothing changed.

If I could see the logs, at least.... But I don't know where I can find them and I don't know if they are being created at all (I've read about logging the setup process, but I'm using an .exe, not an msi installer - I can't find where to download the .msi from)

Anyway, I need to get it working as soon as possible...
So, do you have any ideas?

PS.The interesting is: first, the folder "c:\program files\telerik" is being created and some files and folders are written there,
and later, through the installation process, the telerik folder gets deleted (seems like the installer is restoring everything).
And after that, the error is shown (see attached file).

Thanks in advance

Installer and Visual Studio Extensions

answered on 14 Dec 2011

4 answers

152 views

On a form with multiple grid controls, you can't tell which one has focus

On a form with multiple grids, it's not possible to tell which grid has focus. The grid selected row color is always the same, whether or not the control has focus.

This presents a problem in the case where you have a ribbon bar with a single "Delete" option that operates on the grid in focus. The user has no way of knowing which grid will handle the delete operation.

The behavior should be similar to the tree control, where the selected item color changes when the tree loses focus.

Is there a setting or a workaround to change this behavior?

Thanks,
-Jeff

GridView

answered on 14 Dec 2011

3 answers

237 views

InlineUIContainer and Plain text

In my project, I need to insert a InlineUIContainer which includes a TextBlock into the RadRichTextBox, after the insertion, how to keep the InlineUIContainer and other plain text the same height? Thanks.

RichTextBox

answered on 14 Dec 2011