Questions on UI for WPF Forum

1 answer

77 views

Am I able to freeze row ?

Hi,
Am I able to freeze rows in the TreeListView ?

Best regards & have a nice holidays :)
Kristján.

TreeListView

answered on 28 Dec 2012

0 answers

104 views

Implementation of Telerik WPF Examples

Hey guys
I am newbie in Telerik WPF Dev, I have a trouble with implementation of telerik already prepared examples. For example here is one link

http://demos.telerik.com/silverlight/#GridView/Selectors/StyleSelectors/RowStyleSelector

Under the code we can notice

xmlns:Examples="clr-namespace:Telerik.Windows.Examples"

and further down xaml tag

<Examples:UnitPriceConveter x:Key="converter" />

How to get access to that 'Examples',
how to implement the example to make it work with my DataTable as my DataSource.
I could not find any info of how to make these examples to work with DataTable.

If you will explain or provide at least one example of how to go around that 'Examples:' tag and of how to use DataTable as DataSource I will be ok

Thanks

General Discussions

asked on 27 Dec 2012

4 answers

152 views

RadDateTimePicker not abiding by RadDataForm.Mode

I have a RadDataForm that contains a number of fields.

When I add a DataFormDateField and bring up the form in ReadOnly mode, the field is disabled. When I add a DataFormDataField that contains a RadDateTimePickerand bring up the form in ReadOnly mode, the field is not disabled.

In other words, this works:

<telerik:DataFormDateField

Label="Contact Date"

DataMemberBinding="{Binding Path=contactdt}"

/>

And this does not:

<telerik:DataFormDataField

Label="Contact Date"

>

<telerik:RadDateTimePicker

SelectedValue="{Binding Path=contactdt}"

/>

</telerik:DataFormDataField>

Is there a way to get a DataFormDataFields contained controls to respond to the form's Mode?

DataForm

answered on 27 Dec 2012

1 answer

360 views

ContextMenu binding in TreeView DataTemplate

Hi,

The following works when the context menu is declared in the TreeView directly.

<telerik:RadTreeView Name="radTreeView" ExpanderStyle="{StaticResource ExpanderStyle}" ItemsSource="{Binding Path=EnvironmentMenuDataSource}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}" ItemTemplate="{StaticResource EnvironmentMenu}">

<telerik:RadContextMenu.ContextMenu>

<telerik:RadContextMenu Opened="RadTreeViewContextMenuOpened">

<telerik:RadMenuItem Header="{Binding Path=SelectedItem.ContextCommandName}" Command="{Binding Path=ViewListCommand}" CommandParameter="{Binding SelectedItem}">

<telerik:RadMenuItem.Icon>

<Image Source="../Images/Menu/Blue.png" Stretch="Uniform" />

</telerik:RadMenuItem.Icon>

</telerik:RadMenuItem>

</telerik:RadContextMenu>

</telerik:RadContextMenu.ContextMenu>

</telerik:RadTreeView>

However when placed my context menu inside the Data template as I only want a context menu with leave items,

<DataTemplate x:Key="EntityMenu">

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="0.35*"/>

<ColumnDefinition Width="0.65*"/>

</Grid.ColumnDefinitions>

<Image Source="{Binding ImageUrl, Mode=OneWay}" Width="16" Height="16"/>

<TextBlock Margin="3,0,0,0" Grid.Column="1" TextWrapping="Wrap" Text="{Binding Name, Mode=OneWay}">

<telerik:RadTreeView Name="radTreeView" ExpanderStyle="{StaticResource ExpanderStyle}" ItemsSource="{Binding Path=EnvironmentMenuDataSource}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}" ItemTemplate="{StaticResource EnvironmentMenu}">

<telerik:RadContextMenu.ContextMenu>

<telerik:RadContextMenu Opened="RadTreeViewContextMenuOpened">

<telerik:RadMenuItem Header="{Binding Path=SelectedItem.ContextCommandName}" Command="{Binding Path=ViewListCommand}" CommandParameter="{Binding SelectedItem}">

<telerik:RadMenuItem.Icon>

<Image Source="../Images/Menu/Blue.png" Stretch="Uniform" />

</telerik:RadMenuItem.Icon>

</telerik:RadMenuItem>

</telerik:RadContextMenu>

</telerik:RadContextMenu.ContextMenu>

</telerik:RadTreeView>

</TextBlock>

</Grid>

</DataTemplate>

<HierarchicalDataTemplate x:Key="EnvironmentMenu" ItemTemplate="{StaticResource EntityMenu}"

ItemsSource="{Binding EntityMenus}">

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

</HierarchicalDataTemplate>

it does not work anymore. I tried to change the binding with the relativesouce but no luck. we are using the MVVM. The commands are in the ViewModel of the view.

Do you have any examples with it?

Thanks

TreeView

answered on 27 Dec 2012

8 answers

237 views

Bug? InvalidOperationException occurs once clicking a Hyperlink after WPF ScheduleView is in focus

Hi,

I experienced a problem in my developing the WPF application. The application consists of a RadScheduleView and many WPF Hyperlink items. Once the ScheduleView is on focus, then I click on any Hyperlink, the application hangs and shows "InvalidOperationException" in Debug mode, saying that Hyperlink is not a Visual or Visual3D.

Full stacktrace is captured as follow:

System.InvalidOperationException was unhandled

Message='System.Windows.Documents.Hyperlink' is not a Visual or Visual3D.

Source=PresentationCore

StackTrace:

at MS.Internal.Media.VisualTreeUtils.AsVisual(DependencyObject element, Visual& visual, Visual3D& visual3D)

at System.Windows.Media.VisualTreeHelper.GetParent(DependencyObject reference)

at Telerik.Windows.Controls.ScheduleViewBase.ScheduleViewLostFocus(Object sender, RoutedEventArgs e) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\ScheduleView.InlineEditing.cs:line 368

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.OnLostFocus(RoutedEventArgs e)

at System.Windows.UIElement.IsFocused_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)

at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)

at System.Windows.DependencyObject.ClearValueCommon(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata)

at System.Windows.DependencyObject.ClearValue(DependencyPropertyKey key)

at System.Windows.Input.FocusManager.OnFocusedElementChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)

at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)

at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)

at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)

at System.Windows.FrameworkContentElement.OnGotKeyboardFocus(Object sender, KeyboardFocusChangedEventArgs e)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)

at System.Windows.Input.InputManager.ProcessStagingArea()

at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)

at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)

at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)

at System.Windows.ContentElement.Focus()

at System.Windows.Documents.Hyperlink.OnMouseLeftButtonDown(Object sender, MouseButtonEventArgs e)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)

at System.Windows.Input.InputManager.ProcessStagingArea()

at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)

at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)

at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)

at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)

at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)

at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)

at System.Windows.Application.RunInternal(Window window)

at System.Windows.Application.Run()

at WpfApplication1.App.Main() in C:\Segantii\Development\Samples\Telerik\MonthViewTickStyle\WpfApplication1\WpfApplication1\obj\Debug\App.g.cs:line 0

at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Threading.ThreadHelper.ThreadStart()

InnerException:

There will be no error if I click other UI element (e.g. TextBox) after ScheduleView is on focus.
And I cannot find the way to catch the Exception, thus the application will hang once user click on Hyperlink after ScheduleView is on focus.

Is that a bug?
Thanks a lot!

Frankie

ScheduleView

answered on 27 Dec 2012

1 answer

125 views

TargetParameterCountException when IDataErrorInfo

Hi. I implement IDataErrorInfo in my ViewModel's class. I use RadDataForm that bind to simple source from viewmodel. When i start project i have exception (TargetParameterCountException Parametr count mismatch). What is wrong?

DataForm

answered on 27 Dec 2012

5 answers

321 views

CustomControl based on RadComboBox

Hi,

we would like to create a CustomControl that derives from a RadComboBox with a special ItemTemplate. On our first approach we tried it with a usual combox by adding to following lines to the Generic.xaml file of the project:

<Style TargetType="{x:Type local:ComboBoxLookupDataMaterialMainGroups}" BasedOn="{StaticResource {x:Type ComboBox}}">

<Setter Property="ItemTemplate">

<Setter.Value>

<DataTemplate >

Individual Template Definition

</DataTemplate>

</Setter.Value>

</Setter>

</Style>

It worked as expected so we changed the baseclass of the custom control to a RadComboBox, searched for the correct "BasedOn" content and changed it to:

<Style TargetType="{x:Type local:ComboBoxLookupDataMaterialMainGroups}" BasedOn="{StaticResource RadComboBoxStyle}">

Because the RadComboBoxStyle was unknown, we also added the implicit theme XAMLs

Telerik.Windows.Controls.XAML and
Telerik.Windows.Controls.Input.XAML

to the project's theme folder and added the following includes to the Generic.XAML:

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="Telerik.Windows.Controls.xaml" />

<ResourceDictionary Source="Telerik.Windows.Controls.Input.xaml" />

</ResourceDictionary.MergedDictionaries>

The whole project is just a WPF control assembly that is used by another WPF application project, so it doesn't contain an App.xaml file.

After starting the application it hangs with a XAMLObjectWriterException: Zeilennummer "7" und Zeilenposition "10" von "Beim Festlegen der Eigenschaft "System.Windows.ResourceDictionary.Source" wurde eine Ausnahme ausgelöst.".

Maybe it's just a small missing piece but it also might be a fundamental lack of knowledge since we are new to WPF. Could you please help us out?

Thanks!
David

ComboBox

answered on 27 Dec 2012

1 answer

91 views

Command property missed here

Hi
please let me know if the command is available in numeric control?

Thanks,
Akram

NumericUpDown

answered on 27 Dec 2012

10 answers

375 views

displaymemberpath, autocompletemode and selection on focus

Hello,

i'm testing the autocompletebox, and so far i like it. But i have 3 questions:
1.) Is there a way to set the DisplayMemberPath? The property has no effect.
2. ) The autocompletemode doesn't work. I'm trying to use the mode "SuggestAndAppend", but it does neither. Also tried the other modes, but the control only filters the entries, but doesn't Highlight a match or autocomplete the value in the TextBox.
3.) is there am easy way to select all text on Focus?

Regards
Michael

AutoCompleteBox

answered on 27 Dec 2012

26 answers

360 views

XMLA Data Provider

Hi,
I've tried Xmla Data Provider. It works great but If I have several databases on same SSAS server, it takes always the first one.
I have a RadPivotFieldList and a RadPivotGrid: RadPivotFieldList updates fields list correctly and accordingly to the specified database/cube but RadPivotGrid connects to wrong database (the first in analysis services).

Is there a way to specify the correct catalog with Xmla data provider?
My configuration is:

<telerikDataProviderXmla:XmlaDataProvider x:Key="dataProvider">

<telerikDataProviderXmla:XmlaDataProvider.ConnectionSettings>

<telerikDataProviderXmla:XmlaConnectionSettings

Cube="MY_CUBE"

Database="MY_DATABASE_01"

ServerAddress="http://MY_WEBSERVER:8888/msmdpump.dll" />

</telerikDataProviderXmla:XmlaDataProvider.ConnectionSettings>

</telerikDataProviderXmla:XmlaDataProvider>

In this case, if I have also MY_DATABASE_00 it connects to MY_DATABASE_00.

Many thanks in advance!
Regards!
Davide

PivotGrid