GridViewDataControl.RowDetailsVisibilityChangingEvent, new RoutedEventHandler(GridView_VisibilityChangingEvent));
The doc says it's part of the GridViewDataControl class.

Best regards
Oliver

Hi,

I have a main application and when the user click on a button, I create a dialog to display some informations. When a display this dialog, I restore his persistence and whe the user close this dialog, I save his persistence. After 2 or 3 attempts of displaying this dialog, my main application throw me an exception.

Environment:
VS2008
DotNet: 3.5
Telerik: 2011.3.1116.35

Here is my main application call:

private void btnPhone_Click(object sender, RoutedEventArgs e)

{

ReferringInfos dialog = new ReferringInfos(mDataSource, mCurrentVisit.ReferringPhysician, mCurrentVisit.ReferringPhones, true);

dialog.ShowDialog();

}

Here is my ReferringInfos class and xaml:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using com.ChristieGrp.Localisation;

using com.christiegrp.Neuron.Client;

using Telerik.Windows.Controls;

namespace com.christiegrp.Neuron.ClientApplication

{

/// <summary>

/// Interaction logic for ReferringInfos.xaml

/// </summary>

public partial class ReferringInfos : RadWindow

{

#region Constructors.

static ReferringInfos()

{

StyleManager.ApplicationTheme = new Office_BlueTheme();

LocalizationManager.Manager = new CustomLocalizationManager();

}

public ReferringInfos(NeuronDataSource pDataSource, string pReferringName, ShortPhoneNumber[] pPhoneList, Boolean pPersistence)

{

InitializeComponent();

mDataSource = pDataSource;

mPersistence = pPersistence;

this.ReferringName = pReferringName;

mPhoneNumbers = new List<PhoneNumber>();

fillPhoneNumbers(pPhoneList);

radGridView.ItemsSource = mPhoneNumbers;

Header = mDataSource.BuildFormName(LocGeneral.GetControlText("ReferringInfos"));

}

#endregion

#region Dependency properties.

public static readonly DependencyProperty ReferringNameProperty = DependencyProperty.Register("ReferringName", typeof(string), typeof(ReferringInfos));

#endregion

#region Public properties.

public string ReferringName

{

get

{

return (string)GetValue(ReferringNameProperty);

}

set

{

SetValue(ReferringNameProperty, value);

}

}

#endregion

#region Private methods.

private void fillPhoneNumbers(ShortPhoneNumber[] pPhoneList)

{

foreach (ShortPhoneNumber item in pPhoneList)

{

PhoneNumber phone = new PhoneNumber();

phone.Number = item.PhoneNumber;

phone.TypeCode = item.TypeCode;

mPhoneNumbers.Add(phone);

}

}

#endregion

#region Private events handler.

/// <summary>

/// Change dialog resources.

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void ReplaceLanguageResources(object sender, EventArgs e)

{

Localisation.SetUILanguage(this, "ReferringInfos", mDataSource);

}

/// <summary>

/// Dialog is closing.

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void RadWindow_PreviewClosed(object sender, WindowPreviewClosedEventArgs e)

{

if (mPersistence)

{

string errMsg;

PersistenceStorage.Persist(PersistenceStorage.PersistenceAction.Save, out errMsg);

}

}

/// <summary>

/// Dialog is loaded.

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void RadWindow_Loaded(object sender, RoutedEventArgs e)

{

if (mPersistence)

{

string errMsg;

PersistenceStorage.Persist(PersistenceStorage.PersistenceAction.Load, out errMsg);

}

}

/// <summary>

/// Close request.

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void btnClose_Click(object sender, RoutedEventArgs e)

{

Close();

}

#endregion

#region Private fields.

private NeuronDataSource mDataSource;

private Boolean mPersistence;

private List<PhoneNumber> mPhoneNumbers;

#endregion

}

/// <summary>

/// Class to hold a list of phone numbers.

/// </summary>

public class PhoneNumber

{

public string Number { get; set; }

public string TypeCode { get; set; }

}

}

<telerik:RadWindow x:Class="com.christiegrp.Neuron.ClientApplication.ReferringInfos"

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"

Height="300" Width="450" SizeToContent="False" Name="Me"

WindowStartupLocation="CenterScreen" PreviewClosed="RadWindow_PreviewClosed" Loaded="RadWindow_Loaded" ResizeMode="NoResize"

telerik:PersistenceManager.StorageId="ReferringInfos">

<telerik:RadWindow.IconTemplate>

<DataTemplate>

<Image Source="Resources/Doctor_48x48.png" Height="24" Width="24" Stretch="Fill" Margin="0 0 3 0" />

</DataTemplate>

</telerik:RadWindow.IconTemplate>

<telerik:RadWindow.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="ReferringInfos-Fr-Res.xaml"/>

<ResourceDictionary Source="/Telerik.Windows.Controls.Navigation;component/Themes/GenericOfficeBlack.xaml"/>

</ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

</telerik:RadWindow.Resources>

<Grid Margin="5">

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*"/>

<ColumnDefinition Width="Auto"/>

</Grid.ColumnDefinitions>

<Grid.RowDefinitions>

<RowDefinition Height="Auto"/>

<RowDefinition Height="*"/>

<RowDefinition Height="Auto"/>

</Grid.RowDefinitions>

<!-- The following element is used to trigger an event allowing to replace the language resources before they are used. -->

<TextBlock Initialized="ReplaceLanguageResources"/>

<StackPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="0" Orientation="Horizontal">

<Image Source="Resources/Doctor_48x48.png" Height="32" Width="32" Stretch="Fill" />

<Label Margin="5" FontSize="16" VerticalAlignment="Center" Content="{Binding ElementName=Me, Path=ReferringName}"/>

</StackPanel>

<telerik:RadGridView Name="radGridView" Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="1" ShowGroupPanel="False" IsSynchronizedWithCurrentItem="True" IsReadOnly="True" SelectionMode="Single" RowIndicatorVisibility="Collapsed" AutoGenerateColumns="False" SelectionUnit="FullRow">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn IsGroupable="False" IsFilterable="False" DataMemberBinding="{Binding Path=Number}" Header="{StaticResource Number}" />

<telerik:GridViewDataColumn IsGroupable="False" IsFilterable="False" DataMemberBinding="{Binding Path=TypeCode}" Header="{StaticResource Type}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

<telerik:RadButton Grid.Column="1" Grid.Row="2" Margin="0 5 0 0" Name="btnClose" Click="btnClose_Click">

<StackPanel Orientation="Horizontal">

<Image Margin="5 0 0 0" Source="Resources/Close_32x32.png" Height="24" Width="24" />

<TextBlock Margin="5" VerticalAlignment="Center" Text="{StaticResource Close}"/>

</StackPanel>

</telerik:RadButton>

</Grid>

</telerik:RadWindow>

Here is my log:
2011-12-01 23:41:29,660;[5852];ERROR;MNGUI016;System.Windows.Markup.XamlParseException: La valeur « ReferringInfos » ne peut pas être attribuée à la propriété « StorageId » de l’objet « com.christiegrp.Neuron.ClientApplication.ReferringInfos ». Un élément avec la même clé a déjà été ajouté.  Erreur à l’objet « Me » dans le fichier de balisage « ClientHelper;component/referringinfos.xaml » ligne 7 position 5. ---> System.ArgumentException: Un élément avec la même clé a déjà été ajouté.
   à System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   à System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   à System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
   à Telerik.Windows.PersistenceFramework.ObjectStorage.AddItemToStorage(String key, DependencyObject item)
   à Telerik.Windows.Persistence.PersistenceManager.OnStorageIdChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   à System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   à System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   à System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   à System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)
   à System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)
   à System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   à System.Windows.Markup.BamlRecordReader.SetDependencyValueCore(DependencyObject dependencyObject, DependencyProperty dependencyProperty, Object value)
   à System.Windows.Markup.BamlRecordReader.SetDependencyValue(DependencyObject dependencyObject, DependencyProperty dependencyProperty, Object value)
   à System.Windows.Markup.BamlRecordReader.SetPropertyValue(Object o, PropertyDefinition propertyDefinition, Object value)
   à System.Windows.Markup.BamlRecordReader.ReadPropertyRecordBase(String attribValue, Int16 attributeId, Int16 converterTypeId)
   --- Fin de la trace de la pile d'exception interne ---
   à System.Windows.Markup.XamlParseException.ThrowException(String message, Exception innerException, Int32 lineNumber, Int32 linePosition, Uri baseUri, XamlObjectIds currentXamlObjectIds, XamlObjectIds contextXamlObjectIds, Type objectType)
   à System.Windows.Markup.XamlParseException.ThrowException(ParserContext parserContext, Int32 lineNumber, Int32 linePosition, String message, Exception innerException)
   à System.Windows.Markup.BamlRecordReader.ThrowExceptionWithLine(String message, Exception innerException)
   à System.Windows.Markup.BamlRecordReader.ReadPropertyRecordBase(String attribValue, Int16 attributeId, Int16 converterTypeId)
   à System.Windows.Markup.BamlRecordReader.ReadPropertyConverterRecord(BamlPropertyWithConverterRecord bamlPropertyRecord)
   à System.Windows.Markup.BamlRecordReader.ReadRecord(BamlRecord bamlRecord)
   à System.Windows.Markup.BamlRecordReader.Read(Boolean singleRecord)
   à System.Windows.Markup.TreeBuilderBamlTranslator.ParseFragment()
   à System.Windows.Markup.TreeBuilder.Parse()
   à System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
   à System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
   à com.christiegrp.Neuron.ClientApplication.ReferringInfos.InitializeComponent() dans d:\Developpement\GestX.Courant\RisGC\Client\ClientHelper\ReferringInfos.xaml:ligne 1
   à com.christiegrp.Neuron.ClientApplication.ReferringInfos..ctor(NeuronDataSource pDataSource, String pReferringName, ShortPhoneNumber[] pPhoneList, Boolean pPersistence) dans D:\Developpement\GestX.Courant\RisGC\Client\ClientHelper\ReferringInfos.xaml.cs:ligne 36
   à com.christiegrp.Neuron.ClientApplication.DictationForm.btnPhone_Click(Object sender, RoutedEventArgs e)
   à System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   à System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   à System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   à System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   à System.Windows.Controls.Primitives.ButtonBase.OnClick()
   à System.Windows.Controls.Button.OnClick()
   à Telerik.Windows.Controls.RadButton.OnClick()
   à System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   à System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)
   à System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   à System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   à System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   à System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   à System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   à System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
   à System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   à System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   à System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   à System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   à System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   à System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   à System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   à System.Windows.Input.InputManager.ProcessStagingArea()
   à System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   à System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   à System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   à System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   à System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   à MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   à MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   à System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
   à System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   à System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   à System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
   à System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
   à MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   à System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   à System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
   à System.Windows.Forms.NativeWindow.WndProc(Message& m)
   à System.Windows.Forms.Integration.WindowsFormsHost.ActivateWindowListener.WndProc(Message& m)
   à System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   à MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   à System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   à System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   à System.Windows.Window.ShowHelper(Object booleanBox)
   à System.Windows.Window.Show()
   à System.Windows.Window.ShowDialog()
   à Telerik.Windows.Controls.InternalWindow.WindowWithNoChromeWindowHost.Open(Boolean isModal)
   à Telerik.Windows.Controls.WindowBase.ShowWindow(Boolean isModal)
   à Telerik.Windows.Controls.RadWindow.ShowDialog()
   à com.christiegrp.Neuron.ClientApplication.DictationModuleWPF.StartFunction()
   à com.christiegrp.Neuron.ClientApplication.MainGui.listView_ItemActivate(Object sender, EventArgs e) dans D:\Developpement\GestX.Courant\RisGC\Client\Neuron\MainGui.cs:ligne 1031

="{Binding DataContext.Name, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=telerik:RadTabItem}}"

.radtabVariableControlsContainer.ItemsSource =

Enumerable.Range(0, 10).Select(x => new UserControl() { Name = "name" + x });

<charting:ChartArea.Annotations>
   <charting:CustomGridLine YIntercept="{Binding Path=TargetThickness}" Visibility="Visible" Stroke="Red" StrokeThickness="
</charting:ChartArea.Annotations>

The problem is that it's not displaying the value contained in the TargetThickness property. Is the syntax not correct?