Questions on UI for WPF Forum

1 answer

72 views

I just upgraded to 2013 Q2 and am having trouble using RadDiagram. Previously working code now raises an exception with message:

Value cannot be null.
Parameter name: source

Please help.

Diagram

answered on 02 Jul 2013

1 answer

171 views

RadGridView with hierarchy - create combobox column in child grid with a grid inside

Hello!

I'm struggling from a few days with a problem in my wpf application:

I have to create a structure similar to the one in telerik demos of which I attach a screenshot. It is a RadGridView with hierarchy.

In child grid I have to add a RadComboBox Column and it works fine until I simply put some values in this combo. My task Is to modify the Data Template of the Comboboxcolumn and insert a radgridview.

I'm facing a lot of problem in doing that and in binding data to the Grid. I succesfully create the structure but I'm not able to bind data in code behind.

This is a piece of my code, and attached is the example structure I want to upgrade.

<telerik:RadGridView Margin="15,5,15,5" Name="gvRequest" Height="auto" Width="Auto"

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

telerik:StyleManager.Theme="Simple" AutoGenerateColumns="False"

IsFilteringAllowed="False" FlowDirection="LeftToRight" ShowGroupPanel="False">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn UniqueName="Codice" Header="Codice" Width="Auto" />

<telerik:GridViewDataColumn UniqueName="UtenteCreazione" Header="UtenteCreazione" Width="Auto" />

<telerik:GridViewDataColumn UniqueName="IDContatore" Header="IDContatore" Width="Auto" />

<telerik:GridViewDataColumn UniqueName="ModuloStampa" Header="ModuloStampa" Width="Auto" />

</telerik:RadGridView.Columns>

<telerik:RadGridView.HierarchyChildTemplate>

<DataTemplate>

<StackPanel DataContext="{x:Null}">

<telerik:RadGridView CanUserReorderColumns="False" Name="gvOrder" CanUserInsertRows="True" ShowInsertRow="True" CanUserDeleteRows="True"

CanUserFreezeColumns="False" ShowGroupPanel="False" AutoGenerateColumns="False" ItemsSource="{Binding}"

Loaded="OnChildGridLoaded" FlowDirection="LeftToRight" IsFilteringAllowed="False" ShowColumnHeaders="True" ColumnBackground="AliceBlue" HorizontalContentAlignment="Right" ClipToBounds="True">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn UniqueName="id" Header="id" Width="Auto" />

<telerik:GridViewDataColumn UniqueName="Data" Header="Data" Width="Auto" />

<telerik:GridViewDataColumn UniqueName="UtenteCreazione" Header="UtenteCreazione" Width="Auto" />

<telerik:GridViewComboBoxColumn UniqueName="numero" Header="Numero" Width="Auto"

DataMemberBinding="{Binding numero, Mode=TwoWay}"

DisplayMemberPath="NomeUtente" SelectedValueMemberPath="IDUtente" SortMemberPath="NomeUtente" SortingState="Ascending" />

<telerik:GridViewComboBoxColumn UniqueName="numero2" Header="Numero2" Width="Auto"

DataMemberBinding="{Binding numero, Mode=TwoWay}"

ItemsSource="{Binding Source={StaticResource CustomersViewSourcefil}}"

DisplayMemberPath="{Binding Path=RadGrigliaUtenti.NomeUtente}">

<telerik:GridViewComboBoxColumn.ItemTemplate>

<DataTemplate>

<telerik:RadGridView FilteringMode="FilterRow" x:Name="RadGrigliaUtenti" AutoGenerateColumns="False" ShowGroupPanel="False" CanUserFreezeColumns="False"

RowIndicatorVisibility="Collapsed" IsReadOnly="True" MinWidth="300" MaxWidth="600"

IsFilteringAllowed="True" ItemsSource="{Binding Source={StaticResource CustomersViewSource}}"

Height="150" SelectedItem="{Binding Path=numero}" >

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="IDUtente" Width="120" DataMemberBinding="{Binding IDUtente}" IsReadOnly="True"></telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="NomeUtente" Width="*" DataMemberBinding="{Binding NomeUtente}" IsReadOnly="True"></telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</DataTemplate>

</telerik:GridViewComboBoxColumn.ItemTemplate>

</telerik:GridViewComboBoxColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</StackPanel>

</DataTemplate>

</telerik:RadGridView.HierarchyChildTemplate>

</telerik:RadGridView>

</Window>

Someone has a sample project or some suggestions to accomplish this task?

GridView

answered on 02 Jul 2013

1 answer

68 views

TabControl binded to a dynamic collection

Are there some examples or hints to use the PersistenceFramework on a RadTabControl binded to a collection of the view model?
I would have to persiste the tabs and their contents.

Thanks in advance
Mauro

PersistenceFramework

answered on 02 Jul 2013

1 answer

98 views

Automatically Scroll to Expanded Item

Hi there
My RadPanelBar Contains 5 Item. When an item is expanded, its Header and Content fill whole window height. I want RadPanelBar to Scroll automatically to Header and Content of the item i've just expanded. Is this possible?
Thanks

PanelBar

answered on 02 Jul 2013

1 answer

127 views

Styling GridView problem

Dear Telerik Team!

I am trying to use "implicit styling" as described in:
http://www.telerik.com/help/wpf/styling-apperance-implicit-styles-overview.html

I added the following files to the project:

Telerik.Windows.Controls.xaml
System.Windows.xaml
Telerik.Windows.Controls.Input.xaml
Telerik.Windows.Controls.Navigation.xaml
Telerik.Windows.Controls.GridView.xaml
Telerik.Windows.Controls.ScheduleView.xaml

I believe these files contain all the styles necessary in our project. I also added the necessary entries to Application.Resources dictionary, removed the "telerik:StyleManager.Theme=""" references from our controls XAML's and finally I removed the initialization of StyleManager.ApplicationTheme to ensure that we really use our "implicit styles".

Now - everything seems to work fine (controls like RadMenu, RadMaskedTextBox and other input controls, RadScheduleView! get the correct styles) except for RadGridView. The RadGridViewStyle doesn't get applied from Telerik.Windows.Controls.GridView.xaml. Any ideas? Are we missing some stylesheet files? Or is it something undocumented in the above article.

Many thanks in advance!
Best regards
Krzysztof Kaźmierczak

GridView

answered on 02 Jul 2013

4 answers

145 views

DataAnnotation in AutoGeneratedPropertyDefinitions=false

Hi

I have a question about DataAnnotation in PropertyGrid when the AutoGeneratedPropertyDefinition is set to false. I have tested the Q1 2013 SP1 for this functionality but no luck. I have VM and defined on each property the DataAnnotation. It is working when AutoGeneratedPropertyDefinition is set to true, but when AutoGeneratedPropertyDefinition is set to false I need to set the DisplayName, Description and so on in every property definition.

Are you planning to implement such function?

And it would be great to write the DataAnnotations which I can use in PropertyGrid to the help. There are some, but no all of them. For example the StringLength or Range are working but Required not and so on.

Thanks

Vitalij

PropertyGrid

answered on 02 Jul 2013

1 answer

180 views

'Tile' type is not public or internal

Latest Build: 2013.2.611.45
It will not build, Error I am getting when I try to build:
Error 1 Only public or internal classes can be used within markup. 'Tile' type is not public or internal. .... 13 20 ...

The Preview is showing up as expected in the design view.

<Window x:Class="Management.MainWindow"

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

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

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

Title="MainWindow" Height="768" Width="1366" ResizeMode="NoResize" WindowStyle="None">

<Grid Name="MainGrid">

<Grid.Resources>

<DataTemplate x:Key="GroupTemplate">

<Border BorderThickness="1" BorderBrush="Black" Margin="5">

<TextBlock Text="{Binding}" Margin="5,0,0,5" FontWeight="Bold"/>

</Border>

</DataTemplate>

<Style TargetType="telerik:Tile">

<Setter Property="Margin" Value="5,15,0,0"/>

</Style>

</Grid.Resources>

<telerik:RadTileList x:Name="LayoutSetup" GroupTemplate="{StaticResource GroupTemplate}">

<telerik:Tile Group="Continent" Background="Green" TouchUp="Tile_TouchUp" >

<TextBlock Text="Europe"/>

</telerik:Tile>

<telerik:Tile Group="Country" Background="Blue">

<TextBlock Text="Germany"/>

</telerik:Tile>

<telerik:Tile Group="Continent" Background="Green">

<TextBlock Text="Asia"/>

</telerik:Tile>

<telerik:Tile Group="Country" Background="Blue">

<TextBlock Text="Italy"/>

</telerik:Tile>

</telerik:RadTileList>

</Grid>

</Window>

update: I am no longer looking to use this control, moved to using a wrap panel and radbuttons instead. Suits what I need it to do better.

TileList

answered on 02 Jul 2013

3 answers

137 views

Reminder +ScheduleView ?

Hello Telerik Team,

I'm working on a project and I'm using the RadScheduleView with a custom appointment.
But, End-users can't set up a reminder to an appointment (via email or sms).
How would I go about doing that?

Any approaches?

Thank You,
hiwa

ScheduleView