Questions on UI for WPF Forum

2 answers

159 views

RadTreeListView Will Not Persist Settings

I have a RadTreeListView in an MVVM project which I am trying to persist with the IsolatedStorageProvider. The RadRibbon control save and load routines use a mediator pattern with ICommand and command classes.It only partially works. I can save and restore column width settings, but IsExpanded and IsSelected cannot be saved and restored. Also, it will not save and restore columns that are moved. I save the settings, move a column and then load the settings, expecting the column to return to its original position, but some or all of the data in the columns disappear. There may be other properties that can be saved or can't be saved, but I don't know what to test for.

PersistenceFramework

answered on 29 Jan 2013

1 answer

303 views

Command Binding and focus problem

Hello,

I have a problem with WPF Command and I need some Help.
I defined some static RoutedCommand in my App class. My main window is composed of a RadRibbonView and a RadTabControl.
I Populate the TabControl with some classes that inherit from RadTabItem.
Buttons in the ribbon are bound to my RoutedCommand and I add commandbindings bound to the commands In my RadTabItem children classes.
My TabItem has the Content property set to a UserControl.The buttons works fine while the TabItem header has the focus but if I click on the content of the TabItem (my UC), the button stop calling the CanExecute and Executed callbacks of my TabItem.
I Want the selected TabItem always manage the CanExecute and Execute call for all commands.

How can i handle this ?

Thank you,

General Discussions

answered on 28 Jan 2013

6 answers

381 views

Use list property in propertyGrid with AutoGeneratingPropertyDefinition = true

Hello.

I have some problem. I use ProperyGrid to modify object properies (I have mdi window control. And for selected window I set class A to PropertyGrid.Item in dynamic). In class A I have Prop1 and List1 of suitable values for Prop1. Prop1 is a selected value from List1. How can I display this property in ProperyGrd?

Thanks.

PropertyGrid

answered on 28 Jan 2013

0 answers

156 views

ExpressionDark theme unreadable on nested properties

Hi,

there is a bug in implicit expression dark theme for RadPropertyGrid when NestedPropertiesVisibility is set to Visible.

Content template of SelectedField is unreadable, because Foreground and Background are almost the same color (light gray)

Here is simple demonstration:
https://skydrive.live.com/redir?resid=51A46BBA4E9EF07E!1314&authkey=!ALZkP7tJNZg9sUg

Just select a field in propertygrid and move mouse cursor out of the field

PropertyGrid

asked on 28 Jan 2013

7 answers

426 views

[Solved] How can I hide the expander in GroupRow?

I would like the all the group row in expanded state all the time. How can I change the group row style to hide the expander? May I get a copy of the GroupRow style? I try to get it from Blend, it seems not working for me.

Thanks!

GridView

answered on 28 Jan 2013

1 answer

128 views

Restrict Image Type

I'm trying to use the Image Editor (WPF Q3 2012 WPF4.0) for the first time. In the open and save dialog is there a way to restrict the user to just JPG files (*.jpg, *.fpeg) types. I don't see how to do this from the documentation.

ImageEditor

answered on 28 Jan 2013

3 answers

172 views

Multiple textboxes/textblocks in a cell, chooses right one on edit.

I have a GridViewDataColumn with a CellTemplate that contains an ItemsControl which is templated for TextBlocks. The CellEditTemplate has a similar setup only with TextBoxes. Essentially I have several TextBlocks/TextBoxes per cell. What I want is when the user double clicks on a TextBlock the grid goes into editing mode and selects the corresponding TextBox by index. If I double click the third TextBlock in the cell then I want the third TextBox to start editing.

The default behavior is the grid selects the first TextBox upon entering edit mode. I have tried a couple of code behind solutions based on moving through the visual tree when PreviewMouseDoubleClick happens. But when I force the grid to enter edit mode the TextBoxes are not part of the visual tree as I would expect them to be.

I would prefer a pure XAML solution but do not know how that would be done.

GridView

answered on 28 Jan 2013

7 answers

365 views

TabControl as region in Prism4 doesn't work as expected for Activate method

If you specify a normal tab control as a region and activate one of the views (already added) then the corresponding tab gets selected.
However if the RadTabControl is used as a region then nothing happens when the view is activated (tab doesn't get selected).
Also all tabs remain active views at all times and IsActive property for ViewModel (that implements IActiveAware) doesn't ever change i.e. on switching tabs.

I could have very well used a normal tab control but I want the expression dark theme which is only available for the RadTabControl.

TabControl

answered on 28 Jan 2013

2 answers

152 views

[Solved] Need Help on loading and controlling RadPanelBar programatically in MVVM mode

Hi,

I need help in loading and controlling RadPanelBar programatically in MVVM pattern start from loading the panelBarItems.
I want to create a RadPanelBar which will have set of items and each item will have the ContentControl (loads an UserControl). I want to control the expand and selection of each item by set of buttons. Let me explain this briefly,

my RadPanelBar has 3 items, each PanelBarItem loads an usercontrol. I should be able to control expand of these panelbar items by a listbox having 3 buttons i.e. 1st RadPanelBar item expands on 1st button click, 2nd item expands on 2nd button click etc.
I should be able to do everything progrmatically i.e. even loading the panelbar items and List box items.

I am attaching the XAML code i have used to achieve this,

<telerik:RadPanelBar x:Name="mybar" Width="830" Height="430" HorizontalAlignment="Left" Grid.Row="0" Focusable="False"

VerticalAlignment="Stretch" BorderBrush="#FFCBD8E8" BorderThickness="1 1 0 1" ExpandMode="Multiple" Margin="10,10,10,10" Background="Transparent"

ItemsSource="{Binding PanelBarItemsList}"

SelectedItem="{Binding PanelBarSelected, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">

<telerik:RadPanelBar.ItemTemplate>

<DataTemplate>

<telerik:RadPanelBarItem x:Name="pnliTopic" IsSelected="{Binding IsSelectedValue, Mode=TwoWay}" IsExpanded="{Binding IsExpandedValue, Mode=TwoWay}" >

<telerik:RadPanelBarItem.Header>

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

</telerik:RadPanelBarItem.Header>

<ContentControl x:Name="View" Margin="10,10,10,10" Visibility="Visible" HorizontalAlignment="Left" VerticalAlignment="Top" Width="Auto" Height="Auto"

Content="{Binding UserControlView}" />

</telerik:RadPanelBarItem>

</DataTemplate>

</telerik:RadPanelBar.ItemTemplate>

</telerik:RadPanelBar>

Here is the view model code,

private ObservableCollection<ToolOption> m_PanelBarItems;

public ObservableCollection<ToolOption> SettingsList

{

get { return m_PanelBarItems; }

set

{

m_PanelBarItems = value;

}

Contructor()

{

m_PanelBarItems = new ObservableCollection<PanelBarItem>();

foreach (string strTool in m_LocalCollection)

{

PanelBarItem item= new ToolOption(strTool );

m_PanelBarItems.Add(item);

}

 m_PanelBarItems[0].IsExpandedvalue = true;

 m_PanelBarItems[0].IsSelectedValue = true;

 m_PanelBarItems[0].UserControlView = new UserControlView1();

 PanelBarSelected = m_PanelBarItems[0];

 m_PanelBarItems[0].UserControlView.Visibility = Visibility.Visible;

 this.OnPropertyChanged("PanelBarSelectTool");

}

public object PanelBarSelectTool { get; set; }

//PanelBarItem Class definition

public class PanelBarItem: INotifyPropertyChanged

{

public string Name { get; set; }

private bool selected;

private bool expanded;

public System.Windows.Controls.ContentControl m_View = null;

//private object m_View = null;

public bool IsSelectedValue

{

get

{

return selected;

}

set

{

selected = value;

this.OnPropertyChanged("IsSelectedValue");

}

public bool IsExpandedvalue

{

get

{

return expanded;

}

set

{

expanded = value;

this.OnPropertyChanged("IsExpandedvalue");

}

public System.Windows.Controls.ContentControl UserControlView

{

get

{

return m_View;

}

set

{

if (m_View != value)

{

m_View = value;

}

public PanelBarItem(string name)

{

this.Name = name;

this.IsSelectedValue = false;

this.IsExpandedvalue = false;

}

public event PropertyChangedEventHandler PropertyChanged;

private void OnPropertyChanged(string propertyName)

{

if (this.PropertyChanged != null)

{

this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

I hope you understand what i want to achieve.
Let me know if you need more information.

PanelBar

answered on 28 Jan 2013

1 answer

206 views

[Solved] CartesianGridLineAnnotation ZIndex problem

Hi,
Use ZIndex property doesn't work when i use it like that :

<telerik:CartesianGridLineAnnotation Axis="{Binding ElementName=verticalAxis}"

Value="0"

Stroke="White"

ZIndex="0"/>

The series are under the annotation.

So, when putting Panel.ZIndex = 0 CartesianGridLineAnnotation with snoop, shows the annotation under the series like i expect.

ChartView

answered on 28 Jan 2013