Questions on UI for WPF Forum

2 answers

104 views

[Solved] Reorder with drag&drop does not work anymore

Hi,

with release Q2 2011 it is not possible to reorder the columns of a RadGridView with drag&drop. The drop adorner is not shown.
With release Q3 2010 this works perfectly. Are there any modifications I have to make in my code?

Best regards

Uli

GridView

answered on 24 Aug 2011

5 answers

342 views

RadGridView grouping issues

We recently "upgraded" to WPF 3.5 Q1 2011. We have a RadGridView with grouping that cuts off the last detail row in each group. In most cases only a few pixels of the last row in each group are visible. This used to work in previous release and latest hotfixes did not help.

Here is our XAML:

<tel:RadGridView x:Name="ListsGV" Grid.Row="2" ItemsSource="{Binding EditFormViewModelCollection}"

IsReadOnly="True" SelectedItem="{Binding CurrentEditFormViewModel}"

PreviewMouseDoubleClick="gridView_PreviewMouseDoubleClick"

HeaderRowStyle="{StaticResource HeaderStyle}"

CanUserSortColumns="False">

<prism:CommandBehaviorCollection.Behaviors>

<prism:BehaviorBinding Event="MouseDoubleClick" Command="{Binding TableSelectedDoubleClickCommand}" CommandParameter="{Binding ElementName=ListsGV, Path=CurrentItem}" />

</prism:CommandBehaviorCollection.Behaviors>

<tel:RadGridView.GroupDescriptors>

<tel:GroupDescriptor Member="CurrentList.SystemModule" />

</tel:RadGridView.GroupDescriptors>

<tel:RadGridView.GroupHeaderTemplate>

<DataTemplate>

<TextBlock Text="{Binding Header.Description}" Margin="1,0,0,0" />

</DataTemplate>

</tel:RadGridView.GroupHeaderTemplate>

<tel:RadGridView.Columns>

<tel:GridViewDataColumn Header="Description" DataMemberBinding="{Binding CurrentList.Description}"

HeaderCellStyle="{StaticResource HeaderCell}" MinWidth="300" />

<tel:GridViewDataColumn Header="Shared Operations" DataMemberBinding="{Binding CurrentList.SharedOperation}"

HeaderCellStyle="{StaticResource HeaderCell}" Width="*"/>

</tel:RadGridView.Columns>

</tel:RadGridView>

GridView

answered on 23 Aug 2011

2 answers

217 views

Resource Grouping and Scrolling

Hi there,

Question 1) Is it possible for the ScheduleView to group resources as the following?

Rooms
   - Room 101
   - Room 102
   - ...
   - Room 106
----------------------------------
Reservations
   - Reservation Z8329
   - Reservation Z8342
   - ...
   - ...
   - Reservation Z8451

Question 2) Is it possible to have different vertical scroll bar for different resource type BUT share the same horizontal scroll?

Please review the screenshot for more detailed drawing.
http://www.telerik.com/ClientsFiles/294371_ScheduleView.jpg

ScheduleView

answered on 23 Aug 2011

4 answers

276 views

[Solved] Crash when closing RadPane created from Binding

Hi,
I have a problem with RadPaneGroup. I want to create RadPanes dynamically via a binding on ItemsSource of RadPaneGroup. The list for the binding is a ObservableCollection<RadPane>. Everything works as expected until it want to close these RadPanes and click on the "x"-button. The program crashes instantly with the following exception:
"Operation is not valid while ItemsSource is in use. Access and modify elements with ItemsControl.ItemsSource instead."

We use version 2011.1.315.35 of the Telerik components.

Viewmodel base:

public class ViewModelBase : INotifyPropertyChanged

{

public String DisplayName { get; set; }

protected void RaisePropertyChanged(string propertyName)

{

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

public event PropertyChangedEventHandler PropertyChanged;

}

Viewmodel:

public class TestViewModel : Model.ViewModelBase

{

private ObservableCollection<RadPane> m_PaneList = new ObservableCollection<RadPane>();

public ObservableCollection<RadPane> PaneList

{

get { return m_PaneList; }

set

{

m_PaneList = value;

RaisePropertyChanged("PaneList");

}

Docking definition in XAML:

<telerik:RadDocking Grid.Row="1" HasDocumentHost="True" HorizontalAlignment="Stretch" Name="radDocking1" VerticalAlignment="Stretch">

<telerik:RadSplitContainer>

<telerik:RadPaneGroup Name="radPaneGroup1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ItemsSource="{Binding Path=PaneList}">

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

Creation of the RadPanes:

TestViewModel testViewModel = this.DataContext as TestViewModel;

RadPane pane = new RadPane {Header = "Test"};

if (testViewModel != null)

{

testViewModel.PaneList.Add(pane);

}

Am I doing anything wrong here?

Docking

answered on 23 Aug 2011

5 answers

267 views

RadDataForm basic layout

I am finding that the content of the RadDataForm control (using the Metro theme) is small. When I say "the content" I mean the fields within the RadDataForm control.

When the basic layout is used, all controls are the same size. If I add for example FontSize="16" to the RadDataForm control, I get different sizes in the rendered controls. For example:

* The DateTime field is 6 pixels taller than the ComboBox
* The regular TextBox field is 3 pixels taller than the ComboBox

Also, the RadDataForm header seems to get bolded when the font size is increased. Finally, is there a way to establish the space between the labels (on the left) and the controls (on the right)?

Thanks in advance, Marcelo.

DataForm

answered on 23 Aug 2011

1 answer

229 views

GridViewComboBoxColumn DropDown Event

Hello,

I need to be able to update a GridViewComboBoxColumn's ItemsSource when it drops down. How can I capture the drop down event of the GridViewComboBoxColumn? An example would be appreciated.

G

p.s. I am NOT using MVVM. I am binding the GridViewComboBoxColumn using ItemsSource of a List<int>.

GridView

answered on 23 Aug 2011

1 answer

183 views

RichText control increase memory

Hi,

We are using the wpf RadRichText control in our project.
We have a grid control and one of the column is the rich text control and since we added the control we facing
a memory problems our application memory continue grow and it seems that the control don't free up memory.
here is the code:

<telerikRTF:RtfDataProvider SetupDocument="RtfDataProvider_SetupDocument"

Rtf="{Binding ElementName=rtfControl, Path=RichText,Mode= TwoWay}"

UpdateSourceTrigger="PropertyChanged"

RichTextBox="{Binding ElementName=rtfControlMain}"/>

<telerik:RadRichTextBox x:Name="rtfControlMain"

ToolTip="{Binding ElementName=rtfControl,Path=Text,Mode=OneWay}"

IsReadOnly="{Binding ElementName=rtfControl,Path=IsReadOnly}"

FontFamily="Segoe UI" FontSize="11" DocumentInheritsDefaultStyleSettings="True" Grid.Row="2" Loaded="rtfMain_Loaded">

<telerik:RadRichTextBox.IsSelectionMiniToolBarEnabled>

<MultiBinding Converter="{StaticResource booleanLogicalNORConverter}" >

<MultiBinding.Bindings>

<Binding ElementName="rtfControl" Path="IsReadOnly"/>

<Binding ElementName="rtfControl" Path="IsToolBarVisible"/>

</MultiBinding.Bindings>

</MultiBinding>

</telerik:RadRichTextBox.IsSelectionMiniToolBarEnabled>

<telerik:RadRichTextBox.Resources>

<Style TargetType="TextBlock" />

</telerik:RadRichTextBox.Resources>

</telerik:RadRichTextBox>

RichTextBox

answered on 23 Aug 2011

2 answers

136 views

[Solved] Exception thrown when pinning a pane after unpinning it when one Pane Visibility is Collapsed

Hello,

I have created a simple WPF app to demonstrate a bug we are seeing.

In our application, we have a RadPane that only certain users should be able to see because of Permissions. We are attempting to do this using the Visibility property on the RadPane.

If I create a RadDocking control with a RadPaneGroup and set one of the RadPane elements Visibility property to Collapsed. It does two things.

It shows up when I unpin the Visible RadPane (note that if you unpin the Service Card Explorer, you suddenly see the Operations Explorer)
If you try and repin the Pane, a Cannot call Arrange on a UIElement with infinite size or NaN. exception is thrown.

XAML

<Window x:Class="RadDockingPaneVisibilityBug.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="MainWindow" Height="350" Width="525">

<Grid>

<telerik:RadDocking Grid.Row="1">

<telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer>

<telerik:RadPaneGroup>

<telerik:RadDocumentPane Header="Content" Visibility="Collapsed" CanUserClose="False">

<TextBlock Text="Content" />

</telerik:RadDocumentPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer>

<telerik:RadPaneGroup>

<telerik:RadPane Header="Service Card Explorer" CanUserClose="False">

<TextBlock Text="Service Card Explorer" />

</telerik:RadPane>

<telerik:RadPane Header="Operations Explorer" CanUserClose="False" Visibility="Collapsed">

<TextBlock Text="Operations Explorer" />

</telerik:RadPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

</Grid>

</Window>

Steps to reproduce:

Launch the application
Unpin the 'Service Card Explorer' pane - note we suddenly see the Operations Explorer pane - this should not be
Unpin the 'Operations Explorer' pane
Try and pin the 'Service Card Explorer' pane - note the exception

Exception:

System.InvalidOperationException was unhandled

Message=Cannot call Arrange on a UIElement with infinite size or NaN. Parent of type 'Telerik.Windows.Controls.Primitives.TabStripPanel' invokes the UIElement. Arrange called on element of type 'Telerik.Windows.Controls.RadPane'.

Source=PresentationCore

StackTrace: