Questions on UI for WPF Forum

5 answers

196 views

Hi, we're experiencing what looks like a bug in the RadDatePicker control.

I've set the culture in the App.xaml.cs file, and the DatePicker correctly displays the dates as intended:

/// <summary>

/// The main application class.

/// </summary>

public partial class App

{

#region Constructor

/// <summary>

/// Initializes a new instance of <see cref="App" />.

/// </summary>

public App()

{

StyleManager.ApplicationTheme = new Windows8Theme();

InitializeComponent();

Windows8Palette.Palette.AccentColor = (Color)Resources["AccentColor"];

ConfigureCulture();

}

#endregion

#region Private Methods

/// <summary>

/// Configures the culture for the application.

/// </summary>

private static void ConfigureCulture()

{

// set the default culture to English (AU)

// ReSharper disable UseObjectOrCollectionInitializer

var culture = new CultureInfo("en-AU");

// ReSharper restore UseObjectOrCollectionInitializer

// long date format is used on date controls ("D")

culture.DateTimeFormat.LongDatePattern = "ddd d-MMM-yyyy";

// short date format is used in grids ("d")

culture.DateTimeFormat.ShortDatePattern = "dd-MMM-yy";

Thread.CurrentThread.CurrentCulture = culture;

Thread.CurrentThread.CurrentUICulture = culture;

}

#endregion

}

However when a user types in '25-9-13', as soon as they type the '9', the date is shown as 'Mon 1-9-2025' in the tooltip, ie, it suddenly flips the format to yy-mm-dd.

Note that this is not a problem in the corresponding Silverlight control - typing '25-9' correctly shows 'Wed 25-Sep-2013' in the tooltip.

Is this a bug, or something that we can resolve somehow?

Thanks

Sam

DatePicker

answered on 06 Feb 2014

1 answer

122 views

Drag and drop inside treeviewlist item with dragdropmanager

Hi,
I have been working on a project with TreelistView and DragDropManager.
I have a treelistview and i want to drag and drop the items in it.
For example, my treelistview items are like that.

Main_1
- Sub 1_1
- Sub 1_2
Main_2
- Sub 2_1
- Sub 2_2
- Sub 2_3

and i want to drag (Sub 2_2) from (Main_2) to (Main_1). But i can't find the drop position of dragging item, and how can i use this drop position to find the item which dragging item is dropped on.

One more question:
var item = (args.OriginalSource as FrameworkElement).ParentOfType<???????>() -->> What is the correct type for treelistview.

a basic example could help me.
with kind regards

TreeListView

answered on 06 Feb 2014

1 answer

225 views

RadPane IsHidden binding doesn't hide all panes when in RadPaneGroup

Hi,

I'm having trouble with the IsHidden binding of my RadPanes. If I have 2 or more RadPanes within a RadPaneGroup and have their IsHidden properties bound to a static class boolean property, only 1 of the multiple panes within the RadPane group hides when I toggle the property from false to true.

All IsHidden bindings are working, there appears to be a bug when toggling the binding on more than one RadPane within a RadPaneGroup.

I'm using library 2013.1.220.40.

XAML Example:

<telerikDocking:RadSplitContainer Orientation="Horizontal" InitialPosition="DockedBottom">

<telerikDocking:RadPaneGroup>

<TAS2DockingPanes:ModificationsPane x:Name="radPaneModifications" CanUserClose="False" CanDockInDocumentHost="False" IsHidden=

"{Binding Source={x:Static TAS2DockingPanes:VisibilitySettings.Instance}, Path=CanViewModificationsPane, Converter={StaticResource boolToReverseConverter}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

/>

<TAS2DockingPanes:ExtrasPricingPane x:Name="radPanePricingExtras" CanUserClose="False" CanDockInDocumentHost="False" IsHidden=

"{Binding Source={x:Static TAS2DockingPanes:VisibilitySettings.Instance}, Path=CanViewExtrasPricingPane, Converter={StaticResource boolToReverseConverter}, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

/>

</telerikDocking:RadPaneGroup>

</telerikDocking:RadSplitContainer>

Static Class

public class VisibilitySettings : INotifyPropertyChanged

{

private static readonly VisibilitySettings instance = new VisibilitySettings();

private VisibilitySettings() { }

public static VisibilitySettings Instance

{

get

{

return instance;

}

private static bool m_canViewExtrasPricingPane;

private static bool m_canViewModificationsPane;

public static void SetVisibilitySettings(bool canViewExtrasPricingPane, bool canViewModificationsPane)

{

Instance.CanViewExtrasPricingPane = canViewExtrasPricingPane;

Instance.CanViewModificationsPane = canViewModificationsPane;

}

public bool CanViewExtrasPricingPane

{

get

{

return m_canViewExtrasPricingPane;

}

set

{

m_canViewExtrasPricingPane = value;

OnPropertyChanged(new PropertyChangedEventArgs("CanViewExtrasPricingPane"));

}

public bool CanViewModificationsPane

{

get

{

return m_canViewModificationsPane;

}

set

{

m_canViewModificationsPane = value;

OnPropertyChanged(new PropertyChangedEventArgs("CanViewModificationsPane"));

}

//INotifyPropertyChanged Event

public event PropertyChangedEventHandler PropertyChanged;

public void OnPropertyChanged(PropertyChangedEventArgs e)

{

if (PropertyChanged != null)

PropertyChanged(this, e);

}

Has anyone else noticed such behaviour?

Many thanks,

Rob

Docking

answered on 06 Feb 2014

1 answer

118 views

Drag and drop from Radtreeviewitem to RadDiagram

Hi,
I've a tree of files managed with a RadTreeView and I need to select a RadTreeViewItem and display its content on a RadDiagram with a drag and drop operation (in style of Visual studio)
How can I do this? I've already followed several tutorial on this web site without success.

Thanks
C

DragAndDrop

answered on 06 Feb 2014

2 answers

708 views

Showing a progress bar on RadGridView at each row-level?

A picture is worth a thousand words, so I attach you my need.

Obvioulsy such image belong to the classical GridView incorporated by defaul on VS Studio 2012 stuff.

That's the XAML code for that:

<DataGridTemplateColumn Header="Actual" Width="80" Visibility="Visible">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <ProgressBar Value="{Binding Path=Stock_Actual, Mode=OneWay}" Minimum="0" Maximum="{Binding Stock_max}" />
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
Thanks in advance for your help,

General Discussions

answered on 06 Feb 2014

9 answers

285 views

AggregateFunctions code behind crashes on SumFunction

Hi

I am creating AggregateFunctions code-behind (see example code below). The CountFunction works but when I include a SumFunction the program crashes with the following error:

No generic method 'Sum' on type

'System.Linq.Enumerable' is compatible with the supplied type arguments. No type argiuments should be provided if the method is non-generic.

I can only see two possible explanations:

1. I am not setting the AggregateFunction properties correctly.

2. Setting Grid.ItemsSource to ObservableCollection<dynamic>

This collections data is correct since is working correctly when not using AggregateFunctions.

Is a dynamically created class a problem? The actual class properties are not dynamic but the actual system data types.

I am also using Grouping and it also works correctly. To make sure that grouping was not the problem I eliminated the grouping but the program still crashes.

---- The following is being looped ----

GridViewDataColumn dataCol = new GridViewDataColumn();

dataCol.DataMemberBinding = new Binding(column.ColumnName);

dataCol.Header = column.ColumnName;

dataCol.UniqueName = column.ColumnName;

dataCol.DataType = Type.GetType(column.SystemDataType);

dataCol.FilterMemberType = Type.GetType(column.SystemDataType);

--- Hard coded to test AggregateFunctions

if (dataCol.UniqueName == "Uid")

{

SumFunction sumFunction = new SumFunction();

sumFunction.SourceField = "Uid";

        sumFunction.ResultFormatString = "Tot Uid: {0}";

        sumFunction.SourceFieldType = Type.GetType(column.SystemDataType);     // System.Int32

        dataCol.AggregateFunctions.Add(sumFunction);

}

--- End hard coding ---

grid.Columns.Add(dataCol);

---- End of Loop ----

grid.ShowColumnFooters = true;

grid.ShowGroupFooters = true;

grid.ItemsSource = new QueryableCollectionView(clientData.Result);

Crashed at this point setting the ItemsSource.

Before putting in the SumFunction code everything was working correctly!

clientData.Result is ObservableCollection<dynamic>

====================================

If you don't have the answer could you provide the code-behind to create AggregrateFunctions. The following xaml snippet is from the WPF example Aggregates which is under the Grouping and Aggregates category. In looking at numerous past posts of this problem I think it would be most helpful to many developers to take the aggregate example and define the grid properties in code-behind. I would like to see a AggregateFunctions example that works using code-behind.

Thanks

Rich

<telerik:GridViewDataColumn Header="Freight"

           DataMemberBinding="{Binding Freight, StringFormat=c}">

                    <telerik:GridViewDataColumn.AggregateFunctions>

                        <telerik:SumFunction SourceField="Freight" ResultFormatString="Total: {0:c}" />

                    </telerik:GridViewDataColumn.AggregateFunctions>

</telerik:GridViewDataColumn>

GridView

answered on 06 Feb 2014

3 answers

74 views

Telerik Pivot Grid Issue

Hi Team,

I have a telerik pivot grid control with three levels to be diplayed in the pivot and the total of the items in one column,But am facing the issue here, where it displays the total correctly when it is expanded but when the pivot grid is collapsed it is showing another value as shown in the attachment..'

As shown in the image total is displaying correctly when expanded but when collapsed it is displaying double of total .Please help me out of this issue

Thanks,
Ruth

General Discussions

answered on 05 Feb 2014

4 answers

231 views

Nested Categories

Hi!

Nested categories are supported?

I want to do something similar to the image attached.
Which is slightly different from the management of the nested properties.

Thanks

PropertyGrid

answered on 05 Feb 2014

7 answers

527 views

Dispatcher.LegacyInvokeImpl nullReferenceException

I am getting a pretty tough error that is coming from ItemsControlExtensions used by the TileList control. I get this error when I run the my application using Narrator.

I found an article about this on StackOverflow where somebody encountered this issue on some custom controls they had in their own solution that caused the error. But in my case, I am using Telerik. So I am kind of stuck unless Telerik fixes it.

Here is the link to the stack over flow find.

http://stackoverflow.com/questions/16245732/nullreferenceexception-from-presentationframework-dll

All I am trying to do is launch the app. The app uses a TileList control as well as a RadAutoCompleteBox, RadComboBox, and RadGridView.

When I run the app on Windows 8 I get two errors when the application starts:

First Error:

Framework Version: v4.0.30319

Description: The process was terminated due to an unhandled exception.

Exception Info: System.NullReferenceException

Stack:

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)

at System.Windows.Threading.DispatcherOperation.InvokeImpl()

at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)

at System.Windows.Threading.DispatcherOperation.Invoke()

at System.Windows.Threading.Dispatcher.ProcessQueue()

at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)

at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)

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

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

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)

at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)

at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)

at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)

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

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

at System.Windows.Application.Run()

Error 2:

Faulting application name: xxx.exe, version: 1.0.0.0, time stamp: 0x525495d8

Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000

Exception code: 0xc0000005

Fault offset: 0x000007fe546901ab

Faulting process id: 0x1e5c

Faulting application start time: 0x01cec47f37ad9317

Faulting application path: C:\Users\xxx\Desktop\xxx\Sprint1b\xxx.exe

Faulting module path: unknown

Report Id: 7f5853ab-3072-11e3-bef0-5c514f0c8fb3

Faulting package full name:

Faulting package-relative application ID:

I am able to run the app on Windows 7 and Windows 8.1 BUT when I run narrator on Windows 8.1 I get this error:

   at Telerik.Windows.Controls.ItemsControlExtensions.<GetContainers>d__0`1.MoveNext() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Common\ItemsControlExtensions.cs:line 45

   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()

   at Telerik.Windows.Automation.Peers.RadAutoCompleteBoxAutomationPeer.GetChildrenCore() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\AutoCompleteBox\AutomationPeers\RadAutoCompleteBoxAutomationPeer.cs:line 173

   at System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()

   at System.Windows.Automation.Peers.AutomationPeer.GetChildren()

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)

   at System.Windows.Automation.Peers.AutomationPeer.ValidateConnected(AutomationPeer connectedPeer)

   at MS.Internal.Automation.ElementProxy.StaticWrap(AutomationPeer peer, AutomationPeer referencePeer)

   at System.Windows.Automation.Peers.AutomationPeer.RaiseAutomationEvent(AutomationEvents eventId)

   at System.Windows.Automation.Peers.SelectorAutomationPeer.RaiseSelectionEvents(SelectionChangedEventArgs e)

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.End()

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)

   at System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(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.SetCurrentValueInternal(DependencyProperty dp, Object value)

   at System.Windows.Controls.TabControl.OnGeneratorStatusChanged(Object sender, EventArgs e)

   at System.EventHandler.Invoke(Object sender, EventArgs e)

   at System.Windows.Controls.ItemContainerGenerator.SetStatus(GeneratorStatus value)

   at System.Windows.Controls.ItemContainerGenerator.Generator.System.IDisposable.Dispose()

   at System.Windows.Controls.Panel.GenerateChildren()

   at System.Windows.Controls.Primitives.TabPanel.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Border.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.ContextLayoutManager.UpdateLayout()

   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)

   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()

   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)

   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)

   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)

AutoCompleteBox

answered on 05 Feb 2014

0 answers

105 views

Bind dynamic observalecollection to radgridview

Hi,

i have a urgent problem. We have to bind a observalcollection to a RadGridView. The Problem ist that this collection must be dynamic. For Example:
We have a tabel "Customer" with 20 columns and a table "purchasing" with 40 columns and so on... We have to create on runtime all the properties
and the collection!

Is there any standalone wpf example somewhere? All i found are Silverlight-Examples and these will not work with wpf...

Thanks a lot
Best Regards
MJ

GridView

asked on 05 Feb 2014