Questions on UI for WPF Forum

5 answers

287 views

Hello,

I am trying to add cut/copy/paste functionality to my RadDiagram, which is databound (MVVM) with a custom GraphSource. The problem I have is that in the DeserializeNode method, it appears that a node on my GraphSource has already been created. I was able to correctly deserialize my underlying model, but if I let add the item to my model, INPC/INCC events fire such that another item is also added to the GraphSource, so the result is two items in the graphsource, one of which my underlying model has no idea about.

I looked at implementing my own IDataTransferService so that I could override the Paste and not create a node on the graph, but this looks rather cumbersome.

Is there an easier way to handle the paste such that I can update my model, and the node will be added to the view when the GraphSource is updated?

Thanks,
Steve

Diagram

answered on 21 Oct 2013

1 answer

77 views

Styling radpane

Hi guys,

Can you help me, I'mn trying to style a radpane. I've followed the website (http://www.telerik.com/help/wpf/raddocking-styling-the-radpane.html).
When blend makes a copy of an object the designer says:

This way it is not possible to change the style

David Groenewegen

Docking

answered on 21 Oct 2013

2 answers

488 views

Changing RadListBox ScrollViewer Height and Width

Hello, Im using this code:
<telerik:RadListBox Name="testlv" SelectionChanged="testlv_SelectionChanged" telerik:StyleManager.Theme="Windows8Touch">
                <telerik:RadListBox.Resources>
                    <Style TargetType="ScrollBar">
                        <Setter Property="telerik:StyleManager.Theme" Value="Windows8Touch" />
                        <Setter Property="MinWidth" Value="40" />
                        <Setter Property="MinHeight" Value="40" />
                    </Style>
                </telerik:RadListBox.Resources>
                <telerik:RadListBox.ItemTemplate>
                    <DataTemplate>
                        <Border BorderBrush="Turquoise" BorderThickness="0,0,0,1" Width="{Binding Path=ActualWidth, ElementName=grdzero}">
                            <WrapPanel Orientation="Vertical" >
                                <TextBlock Foreground="Black" Text="{Binding nazwa}" FontSize="16"></TextBlock>
                                <WrapPanel Orientation="Horizontal">
                                    <TextBlock Foreground="Black" Text="Cena: " FontSize="16"></TextBlock>
                                    <TextBlock Foreground="Black" Text="{Binding cena}" FontSize="16"></TextBlock>
                                </WrapPanel>
                                <WrapPanel Orientation="Horizontal">
                                    <TextBlock Foreground="Black" Text="Kod: " FontSize="16"></TextBlock>
                                    <TextBlock Foreground="Black" Text="{Binding kod}" FontSize="16"></TextBlock>
                                </WrapPanel>
                            </WrapPanel>
                        </Border>
                    </DataTemplate>
                </telerik:RadListBox.ItemTemplate>
            </telerik:RadListBox>

And I'd like to change width and height of scrollbar to value equal 40. How can I do it? (At this momment scrollbars are too small and cant be really touch by finger and scroll down).

Thanks in advance!

ListBox

answered on 21 Oct 2013

1 answer

223 views

Two-way Binding. Avoiding change of CurrentItem and its representation in Breadcrumb.

Hi.

I have the following code in ViewModel:

private ITileItemModel _currentItem;

public ITileItemModel CurrentItem

{

get

{

return _currentItem;

}

set

{

if (_currentItem == value) return;

if (func()) return;

_currentItem = value;

RaisePropertyChanged(() => CurrentItem);

}

For RaisePropertyChanged I have redefinition, so it will work fine.

The *,xaml is as following:

<telerik:RadBreadcrumb x:Name="NavigationBreadcrumb"

HorizontalAlignment="Stretch" VerticalAlignment="Top"

TextModePath="TilePath"

IsTextModeEnabled="False"

HeaderMemberPath="Header"

HierarchicalItemsSource="Children"

HierarchicalMemberPath="Header"

IsHistoryEnabled="False"

Header="{Binding Root}"

ItemsSource="{Binding Root.Children}"

CurrentItem="{Binding CurrentItem, Mode=TwoWay}"

>

</telerik:RadBreadcrumb>

If func() returns true I am not changing CurrentItem, but the breadcrumb shows the item I have selected in it. And I have situation with different values in breadcrumb and CurerntItem.

Could you help me to resolve this issue?

Best regards,
Ilya.

BreadCrumb

answered on 21 Oct 2013

6 answers

588 views

Button Command binding in HeaderTemplate

Hello All,
I am trying to add a button in RadWinodw Title bar using its HeaderTemplate. Although button is visible on Title but its command is not properly binding and getting following error in Output window.
BindingExpression path error: 'SaveCommand' property not found on 'object' ''String' (HashCode=1384875945)'. BindingExpression:Path=SaveCommand; DataItem='String' (HashCode=1384875945); target element is 'Button' (Name=''); target property is 'Command' (type 'ICommand')

Here is my XAML portion.

<telerik:RadWindow.HeaderTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<Button x:Name="btn" Content="button" Command="{Binding Path=SaveCommand}" />

</StackPanel>

</DataTemplate>

</telerik:RadWindow.HeaderTemplate>

Here is my SaveCommand property in my ViewModel object.

private DelegateCommand _saveCommand;

public ICommand SaveCommand

{

get

{

if(_saveCommand == null)

_saveCommand = new DelegateCommand(param => SaveIndicator(), param => CanSaveIndicator());

return _saveCommand;

}

public void SaveIndicator()

{

}

protected bool CanSaveIndicator()

{

if (eAppState == AppState.Fresh)

return false;

return true;

}

And here is how I am creating view and assigning its DataContext.

InterpolatedIndicators.AddEditIndicators view = new InterpolatedIndicators.AddEditIndicators();

view.DataContext = new InterpolatedIndicators.AddEditIndicatorsViewModel();

view.Owner = this;

view.ShowDialog();

Kindly note that when I am placing this button in Window Content section, then Command binding is working fine.
I have also tried to set its RelativeSource using following code

<Button x:Name="btn" Content="button" Command="{Binding Path=DataContext.SaveCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}" />

But still it does not work.

Any help please.

Window

answered on 21 Oct 2013

8 answers

495 views

DecimalSeparator

Hello!

I have problems with RadMaskedCurrencyInput.
My culture is "ru-RU" and CurrencyDecimalSeparator is ','.

<telerik:RadMaskedCurrencyInput Value="12345" Placeholder=" " IsCurrencySymbolVisible="False">

The result is: 123 45.,00.

Control version is 2013.2.724.40.

I want to use '.' as decimal separator in spite of current culture and user settings.
How can I do it?

Thanks is advance!

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 20 Oct 2013

3 answers

116 views

AutoCompleteBox CustomFilteringBehavior with Single SelectionMode

Hi,
I'm Interest for the AutoCompleteBox Control but i have this issue:

Ihave this CustomFilteringBehavior:

public class CustomFilteringBehavior : FilteringBehavior

{

public override System.Collections.Generic.IEnumerable<object> FindMatchingItems(string searchText, System.Collections.IList items, System.Collections.Generic.IEnumerable<object> escapedItems, string textSearchPath, TextSearchMode textSearchMode)

{

var searchTextToUpper = searchText.ToUpper();

var matchingItems = items.OfType<Person>().

Where(x => x.FirstName.ToUpper().Contains(searchTextToUpper) || x.LastName.ToUpper().Contains(searchTextToUpper)

|| (x.FirstName + " " + x.LastName).ToUpper().Contains(searchTextToUpper));

return matchingItems.Where(x => !escapedItems.Contains(x));

}

and in my main page i used this CustomFilteringBeahvior:

<UserControl.Resources>

<local:ViewModel x:Key="ViewModel" />

<local:CustomFilteringBehavior x:Key="CustomFilteringBehavior" />

<DataTemplate x:Key="CustomItemTemplate">

<StackPanel Orientation="Horizontal">

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

<TextBlock Text=" " />

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

</StackPanel>

</DataTemplate>

</UserControl.Resources>

<Grid x:Name="LayoutRoot" Background="White" DataContext="{StaticResource ViewModel}">

<StackPanel>

<telerik:RadAutoCompleteBox ItemsSource="{Binding People}"

FilteringBehavior="{StaticResource CustomFilteringBehavior}"

DropDownItemTemplate="{StaticResource CustomItemTemplate}"

BoxesItemTemplate="{StaticResource CustomItemTemplate}"

SelectionMode="Single"

AutoCompleteMode="Suggest" />

</StackPanel>

</Grid>

when typing :

in SelectionMode="Multiple" all works fine but
in SelectionMode="Single" the result after selection is :

is there any idea for this behavior ?

Thank you in advance,

AutoCompleteBox

answered on 20 Oct 2013

20 answers

2.9K+ views

Could not load assembly Telerik.Windows.Controls.Navigation

Hello,

I downloaded the trial version of RadControls for Silverlight and I'm having problems loading the assemblies. I extracted the downloaded contents to My Documents and added a reference to the DLLs, and got this error:

Could not load file or assembly 'Telerik.Windows.Controls.Navigation, Version=2008.2.826.0, Culture=neutral, PublicKeyToken=9c7324f9b8e4111a' or one of its dependencies. The system cannot find the file specified.

I tried copying the DLLs to my bin directory and resetting the references but still got the same error. Does anyone know what could be the cause of this problem?

Thanks,

Daniel

General Discussions

answered on 18 Oct 2013

1 answer

119 views

How do I enable drag re-ordering without drop?

I have a single RadListBox and I just want to enable drag re-ordering with no drop capabilities (the documentation is this area is horribly unclear).

I have the following XAML:

<tel:RadListBox ItemsSource="{Binding Path=DtedDirectories}"

SelectedValue="{Binding Path=SelectedDtedDirectory}"

SelectionMode="Single">

<tel:RadListBox.ItemContainerStyle>

<Style TargetType="tel:RadListBoxItem">

<Setter Property="tel:DragDropManager.AllowCapturedDrag" Value="True" />

</Style>

</tel:RadListBox.ItemContainerStyle>

<tel:RadListBox.DragDropBehavior>

<tel:ListBoxDragDropBehavior AllowReorder="True" />

</tel:RadListBox.DragDropBehavior>

</tel:RadListBox>

The problem I have is that the list box will let me drop items outside of it, thus removing the item from the list. I do not want this behavior.

ListBox

answered on 18 Oct 2013

1 answer

109 views

Moving objects pans the map

I may be going about this the wrong way, but here's what I am doing. I have a polygon (or whatever). I want to click a vertex point, drag it, and have the polygon updated. I do this by creating a MapPinPoint for each vertex. In the MouseLeftButtonDown event for this point, I set the MouseDragMode to None. In the Map_MouseLeftButtonUp event, I set the MouseDragMode back to Drag. The problem is when I do this, the map sometimes does a pan operation based on where I originally clicked down and where I lifted up. How can I prevent this, or is there a better way to do it?

Map

answered on 18 Oct 2013