How exactly do I achieve this? I tried the snippet below but no luck at all. I always get a smaller value for the width.

        private void gridView_DataLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDataLoadingEventArgs e)
        {
            double width = 0;
 
            foreach (var col in gridView.Columns)
            {
                // None of these gives me the desired value
                //width += col.ActualWidth;
                //width += col.Width.DisplayValue;
                //width += col.Width.Value;
            }
 
            gridView.Width = width;
        }

Hi,

In my project, I have to create GridViewDataColumn for my RadGridView dynamically. When I finish creating my columns, I load data into my grid but the sort, filter and the grouping doesn't work :( I cannot see my filter button and if I try to drag a column header into the group panel, nothing happen.

Here is in my grid:

<telerik:RadGridView x:Name="radGridViewList" Margin="5 0 5 5" Visibility="Visible" RowDetailsVisibilityMode="Collapsed" FrozenColumnCount="1"

RowIndicatorVisibility="Collapsed" IsReadOnly="True" AutoGenerateColumns="False" CanUserFreezeColumns="False" Grid.Row="3"

CanUserResizeColumns="True" ShowColumnFooters="True" ShowGroupFooters="True" SelectionMode="Extended" IsSynchronizedWithCurrentItem="True" />

 

here is the code-behind:

static public void SetColumns(RadGridView pGrid, ColumnDescriptor[] pColumnNames)

{

if (pColumnNames != null)

{

SortedList<int, GroupDescriptor> grouping = new SortedList<int, GroupDescriptor>();

for (int iColumnIndex = 0; iColumnIndex < pColumnNames.Length; iColumnIndex++)

{

ColumnDescriptor oneName = pColumnNames[iColumnIndex];

Telerik.Windows.Controls.GridViewDataColumn oneColumn = new Telerik.Windows.Controls.GridViewDataColumn();

oneColumn.Header = oneName.ColumnName;

//Apply proper column display format.

switch (oneName.Format.ToUpper())

{

case "$":

oneColumn.DataFormatString = "C2";

break;

case "D":

oneColumn.DataFormatString = "yyyy'-'MM'-'dd";

break;

case "H":

oneColumn.DataFormatString = "HH':'mm";

break;

case "DH":

oneColumn.DataFormatString = "yyyy'-'MM'-'dd' 'HH':'mm";

break;

}

oneColumn.Width = new GridViewLength(1, GridViewLengthUnitType.Star);

oneColumn.ShowFilterButton = true;

oneColumn.IsSortable = true;

oneColumn.IsFilterable = true;

oneColumn.IsGroupable = true;

oneColumn.DataMemberBinding = new Binding(string.Format("ElementCells[{0:D}]", iColumnIndex));

oneColumn.TextAlignment = (TextAlignment)oneName.TextAlignment;

oneColumn.HeaderTextAlignment = (TextAlignment)oneName.TextAlignment;

//Create proper aggregate functions.

if (oneName.Agregation != AgregationFunction.None)

{

AddAggregateToColumns(ref oneColumn, oneName, string.Format("ElementCells[{0:D}]", iColumnIndex));

}

//Grouping field.

if (oneName.GroupingPosition != 0)

{

grouping.Add(Math.Abs(oneName.GroupingPosition),

new GroupDescriptor { DisplayContent = oneName.ColumnName, Member = string.Format("ElementCells[{0:D}]", iColumnIndex),

SortDirection = oneName.GroupingPosition > 0 ? ListSortDirection.Ascending : ListSortDirection.Descending});

}

//Add the column to the grid.

pGrid.Columns.Add(oneColumn);

}

//If grouping exist, add it to the grid.

if (grouping.Count != 0)

{

foreach (KeyValuePair<int, GroupDescriptor> oneGrouping in grouping)

{

pGrid.GroupDescriptors.Add(oneGrouping.Value);

}

}

}

}

Thank's

Hi
I'm creating a GridView with a large number of data records.
I'm unable to use the vertical scroll bar, even when I make it visible, it's still disabled.
The horizontal scroll bar becomes visible (and enabled) when I make the window narrow enough.
I've also been unable to link the RadDataPager to the RadGridView.
I wasn't able to find any answer while searching the forums for similar issues.
Thanks


Code : 


        public MainWindow()
        {
            InitializeComponent();
            _productData.ItemsSource = TradeDataProvider.GetProducts();
            _radDataPager.Source = TradeDataProvider.GetProducts();
        }


Xaml :


<telerik:RadRibbonWindow 
    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"
    xmlns:EQDDataAdmin="clr-namespace:aaa" 
    x:Class="aaar.MainWindow"
    Title="bbb"
    MinWidth="100"
    WindowStartupLocation="CenterScreen">
    <Grid>
        <DockPanel>
            <Grid x:Name="_TestProductsGrid" VerticalAlignment="Stretch">
                <StackPanel>
                    <telerik:RadDataPager x:Name="_radDataPager"
                          PageSize="10"
                          DisplayMode="FirstLastPreviousNextNumeric, Text"
                          IsTotalItemCountFixed="True" />
                    <telerik:RadGridView  AutoGenerateColumns="False" x:Name="_productData"
                                  VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
                                  EnableRowVirtualization="True"
                                  SelectionMode="Extended"
                                  ScrollViewer.VerticalScrollBarVisibility="Visible">
                        <telerik:RadGridView.Columns>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding CompanyName}" Header="Company Name"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding CCY}" Header="Currency"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding Country}" Header="Country"/>
                            <telerik:GridViewDataColumn DataMemberBinding="{Binding Region}" Header="Region"/>
                        </telerik:RadGridView.Columns>
                    </telerik:RadGridView>
                </StackPanel>
            </Grid>
            <!--<Grid x:Name="_MainGrid" SizeChanged="MainGridHightChanged"
                  Grid.Row="0" Grid.Column="0" VerticalAlignment="Top">
                <StackPanel VerticalAlignment="Stretch">
                    <EQDDataAdmin:ProductData x:Name="_ProductDataUserControl" VerticalAlignment="Stretch"/>
                </StackPanel>
            </Grid>-->
        </DockPanel>
    </Grid>
</telerik:RadRibbonWindow>

See attachment. The Items 'New' and 'List' also have key tips defined for them, but they seem to be showing under the keytip for 'Views' (CV, OV, & IV respectively)

How do I adjust the position of the Key tips so they can all be individually seen?

Hey,

For a date of birth field it would be really nice to have the first "selection" screen to go to the year view but still be able to drill down from there to an actual "day".  At the moment I have to "drill up" to the years and then go all the way down again. 

If I change the DateSelectionMode to "year" it does what I want in terms of the initial selection screen, but then I cant drill down to a day.

Is there a way to do what I want?

Thanks

Brock

My radchart (PieSeriesDefinition) is crashing when attempting to show 199 or more datapoints on a pie series.  Please see the error text below.  Can i use the sampling settings to avoid this error or is this a bug?  I just read about the sampling threshold default being 200, so it seemed odd that once i get near that it crashes.  I've tried to set the sampling threshold to above 200, below 200, and 0. When set to 0 (disables threshold) the crash happens when the pie chart is attempting to render.  In all other cases it crashes before render. Thanks. 

{"No generic method 'Average' on type 'System.Linq.Enumerable' is compatible with the supplied type arguments and arguments. No type arguments should be provided if the method is non-generic. "}
   at System.Linq.Expressions.Expression.FindMethod(Type type, String methodName, Type[] typeArgs, Expression[] args, BindingFlags flags)
   at System.Linq.Expressions.Expression.Call(Type type, String methodName, Type[] typeArguments, Expression[] arguments)
   at Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateMethodCallExpression(LambdaExpression memberSelectorExpression)
   at Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateAggregateExpression()
   at Telerik.Windows.Data.EnumerableSelectorAggregateFunction.CreateAggregateExpression(Expression enumerableExpression)
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<ProjectionPropertyValueExpressions>b__3(AggregateFunction f)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateProjectionInitExpression()
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateAggregateFunctionsProjectionMemberBinding()
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<CreateMemberBindings>d__0.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Dynamic.Utils.CollectionExtensions.ToReadOnly[T](IEnumerable`1 enumerable)
   at System.Linq.Expressions.Expression.MemberInit(NewExpression newExpression, IEnumerable`1 bindings)
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateSelectBodyExpression()
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateResultSelectorExpression()
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.get_ResultSelectorExpression()
   at Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilderBase.CreateQuery()
   at Telerik.Windows.Data.Expressions.GroupDescriptorCollectionExpressionBuilder.CreateChildQuery(GroupDescriptorExpressionBuilder childBuilder)
   at Telerik.Windows.Data.Expressions.GroupDescriptorCollectionExpressionBuilder.CreateQuery()
   at Telerik.Windows.Data.QueryableExtensions.GroupBy(IQueryable source, IEnumerable`1 groupDescriptors)
   at Telerik.Windows.Data.QueryableCollectionView.CreateView()
   at Telerik.Windows.Data.QueryableCollectionView.get_QueryableView()
   at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
   at Telerik.Windows.Data.QueryableCollectionView.EnsureInternalList()
   at Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
   at Telerik.Windows.Data.QueryableCollectionView.EnsureRootGroup()
   at Telerik.Windows.Data.QueryableCollectionView.get_RootQCVGGroup()
   at Telerik.Windows.Data.QueryableCollectionView.GroupedIndexOf(Object item)
   at Telerik.Windows.Data.QueryableCollectionView.InternalIndexOf(Object item)
   at Telerik.Windows.Data.QueryableCollectionView.TryRestorePreviousCurrency()
   at Telerik.Windows.Data.QueryableCollectionView.InitializeCurrencyOnRefresh()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOverride()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshInternal()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOrDefer()
   at Telerik.Windows.Data.QueryableCollectionView.InvalidatePagingAndRefresh()
   at Telerik.Windows.Data.QueryableCollectionView.OnGroupDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
   at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
   at System.Collections.ObjectModel.Collection`1.Add(T item)
   at Telerik.Windows.Controls.Charting.DataBindingHelper.PerformSampling(QueryableCollectionView dataEngine, Int32 samplingThreshold, IEnumerable`1 samplingFunctions)
   at Telerik.Windows.Controls.Charting.DataBindingHelper.ProcessNoGrouping(SeriesMapping seriesMapping, QueryableCollectionView dataEngine, Int32 samplingThreshold, ZoomScrollSettings zoomScrollSettings, ISeriesDefinition defaultSeriesDefinition, AxisRangeState axisXRangeState)
   at Telerik.Windows.Controls.Charting.DataBindingHelper.ProcessMapping(SeriesMapping seriesMapping, QueryableCollectionView dataEngine, Int32 samplingThreshold, ZoomScrollSettings zoomScrollSettings, ISeriesDefinition defaultSeriesDefinition, AxisRangeState axisXRangeState)
   at Telerik.Windows.Controls.Charting.DataBindingHelper.ProcessMappings(SeriesMappingCollection seriesMappings, QueryableCollectionView dataEngine, Int32 samplingThreshold, ZoomScrollSettings zoomScrollSettings, ISeriesDefinition defaultSeriesDefinition, AxisRangeState axisXRangeState)
   at Telerik.Windows.Controls.Charting.DataBindingHelper.GenerateDataSeries(Object originalData, SeriesMappingCollection seriesMappings, ISeriesDefinition defaultSeriesDefinition, ChartFilterDescriptorCollection globalFilterDescriptors, ChartSortDescriptorCollection globalSortDescriptors, SamplingSettings samplingSettings, ZoomScrollSettings zoomScrollSettings, AxisRangeState axisXRangeState)
   at Telerik.Windows.Controls.RadChart.GenerateDataSeries(Object originalData, SeriesMappingCollection seriesMappings, ChartArea chartArea)
   at Telerik.Windows.Controls.RadChart.GenerateDataSeries(Object originalData)
   at Telerik.Windows.Controls.RadChart.Rebind(Object originalData)
   at Telerik.Windows.Controls.RadChart.Rebind()
   at Telerik.Windows.Controls.RadChart.InternalRebind()
   at Telerik.Windows.Controls.RadChart.OnApplyTemplate()
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Primitives.UniformGrid.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   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.Viewbox.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.ScrollContentPresenter.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)
   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.ScrollViewer.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)
   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)
   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.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.Page.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.InvokeOnRenderCallback.DoWork()
   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)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   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.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(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.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.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.Show()
   at System.Windows.Window.ShowDialog()
   at sherpaSoftware.ConsoleWpf.Console.Show() in D:\SVN\ReportAttender\SharedLibs\sherpaSoftware.ConsoleWPF\ConsoleWpf\Console.vb:line 337
   at sherpaSoftware.raConsole.appEntryPoint.ApplicationStartUp() in D:\SVN\ReportAttender\Console\raConsole\app.EntryPoint.vb:line 68
   at sherpaSoftware.raConsole.appEntryPoint.Main(String[] aParams) in D:\SVN\ReportAttender\Console\raConsole\app.EntryPoint.vb:line 28
   at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   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()

Hello!

We have the following issue:

- Main form contents updates frequently (e.g. it's not static)
- There is AutoHide pane which is opened. This pane flickers and background (e.g. content of main window) is visible for a moment.

This problem is specific for Windows XP only. It's not reproduced in Win7 environment. Your help is required.

Is it possible to scroll bar on RadChart (not to chart area)
I want to show 16 charts in grid (4x4). All charts has one XValue (datetime).
Want to have only one scroll bar to scroll all charts in grid.
Can you suggest best way to achieve this ?

Attaching screen shot of legacy system. Trying to achieve similar using RadChart 

Hi,

I am having a very hard time finding the right documentation/example on how to override the default formatting/css that is occurring in a RichTextBox that is loaded with HTML.

I have already found and tweaked the appropriate settings to make the HTML a fragment, but for the life of me I can't seem to figure out how to declare the css that I would liked applied to the HTML within the RichTextBox.

A perfect example is I need the following css to be applied to the HTML content.

<style type="text/css">
ol {
    list-style-type: upper-roman;
}

ol ol {
    list-style-type: upper-alpha;
}
outline.css (line 5) 

 ol ol ol {
    list-style-type: decimal;
}
</style>

Any help would be greatly appreciated.

Hello!

  I'm trying to detect when a pane (radPane1) is docked into a PaneGroup with another pane (radPane2).  I thought I could do this:

        private void radDocking1_PaneStateChange(object sender, Telerik.Windows.RadRoutedEventArgs e)
        {
            var somePane = e.OriginalSource as RadPane;
            if (somePane == radPane1 && !somePane.IsFloating && radPane1.PaneGroup == radPane2.PaneGroup)
                   HandleDockEvent();
        }

...but it seems the PaneGroup is not set at this point in time, and hence that comparison fails.  How can I do this?