Questions on UI for WPF Forum

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2 answers

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Drag and Drop of User Control with a resizable boder on a Canvas with a resize

    
            <UserControl  
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:s="clr-namespace:RttmVision.Presentation" 
        
                xmlns:p="clr-namespace:RttmVision.Presentation.Properties" 
        
                xmlns:c="clr-namespace:RttmVision.Presentation.Converters" 
        
                xmlns:widgets="clr-namespace:RttmVision.Applications.Widgets;assembly=RttmVision.Applications" 
        
                xmlns:services="clr-namespace:RttmVision.Applications.Services;assembly=RttmVision.Applications" 
        
                xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation" 
        
                xmlns:telerikAnimation="clr-namespace:Telerik.Windows.Controls.Animation;assembly=Telerik.Windows.Controls" 
        
                xmlns:telerikGrid="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" 
        
                 xmlns:telerikInput="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Input" 
        
               xmlns:telerikData="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data" 
        
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" 
        
                xmlns:telerikDragDrop="clr-namespace:Telerik.Windows.Controls.DragDrop;assembly=Telerik.Windows.Controls" 
        
                x:Class="RttmVision.Presentation.Views.BasicWidgetView" 
        
                MinHeight="300" MinWidth="300"  Loaded="ThisLoaded" 
        
                   telerikDragDrop:RadDragAndDropManager.AllowDrag="True"           
        
                > 
        
                <UserControl.Resources> 
        
                    <!-- ResizeDecorator Template --> 
        
                    <ControlTemplate x:Key="ResizeDecoratorTemplate"  TargetType="{x:Type Control}">  
        
                        <Grid > 
        
                            <s:ResizeThumb Height="3" Cursor="SizeNS" Margin="0 -4 0 0" 
        
                                   VerticalAlignment="Top" HorizontalAlignment="Stretch"/>  
        
                            <s:ResizeThumb Width="3" Cursor="SizeWE" Margin="-4 0 0 0" 
        
                                   VerticalAlignment="Stretch" HorizontalAlignment="Left"/>  
        
                            <s:ResizeThumb Width="3" Cursor="SizeWE" Margin="0 0 -4 0" 
        
                                   VerticalAlignment="Stretch" HorizontalAlignment="Right"/>  
        
                            <s:ResizeThumb Height="3" Cursor="SizeNS" Margin="0 0 0 -4" 
        
                                   VerticalAlignment="Bottom" HorizontalAlignment="Stretch"/>  
        
                            <s:ResizeThumb Width="7" Height="7" Cursor="SizeNWSE" Margin="-6 -6 0 0" 
        
                                   VerticalAlignment="Top" HorizontalAlignment="Left"/>  
        
                            <s:ResizeThumb Width="7" Height="7" Cursor="SizeNESW" Margin="0 -6 -6 0" 
        
                                   VerticalAlignment="Top" HorizontalAlignment="Right"/>  
        
                            <s:ResizeThumb Width="7" Height="7" Cursor="SizeNESW" Margin="-6 0 0 -6" 
        
                                   VerticalAlignment="Bottom" HorizontalAlignment="Left"/>  
        
                            <s:ResizeThumb Width="7" Height="7" Cursor="SizeNWSE" Margin="0 0 -6 -6" 
        
                                   VerticalAlignment="Bottom" HorizontalAlignment="Right"/>  
        
                        </Grid> 
        
                    </ControlTemplate> 
        
                    <!-- Designer Item Template--> 
        
                    <ControlTemplate x:Key="DesignerItemTemplate" TargetType="ContentControl">  
        
                        <Grid Height="Auto" Width="Auto" 
        
                            DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=.}">  
        
                            <s:MoveThumb Template="{StaticResource MoveThumbTemplate}" Cursor="SizeAll"/>  
        
                            <Control  Template="{StaticResource ResizeDecoratorTemplate}"/>  
        
                            <ContentPresenter Content="{TemplateBinding Content}"    /> 
        
                        </Grid> 
        
                    </ControlTemplate> 
        
                    <!--Popup--> 
        
                    <!--We have a style because we are actually going to be using multiple thumbs for   
        
                    resizing (one for the bottom edge, one for the corner, and one for the right edge),  
        
                    and this way we don't have to repeat these property and event setters. --> 
        
                    <Style TargetType="{x:Type Thumb}"   
        
                      x:Key="PopupThumb">  
        
                        <!--Setting the alignment properties to stretch just guarantees that the thumbs will fill their respective conta--> 
        
                        <Setter Property="HorizontalAlignment"   
        
                         Value="Stretch"/>  
        
                        <Setter Property="VerticalAlignment"   
        
                         Value="Stretch"/>  
        
                        <EventSetter Event="Thumb.DragStarted"   
        
                              Handler="ThumbDragStarted" /> 
        
                        <EventSetter Event="Thumb.DragDelta"   
        
                              Handler="ThumbDragDelta" /> 
        
                        <EventSetter Event="Thumb.DragCompleted"   
        
                              Handler="ThumbDragCompleted" /> 
        
                    </Style> 
        
                    <!--Setup for Popup TreeView--> 
        
                    <Style x:Key="Expander" TargetType="{x:Type ToggleButton}">  
        
                        <Setter Property="IsEnabled" Value="True" /> 
        
                        <Setter Property="IsTabStop" Value="False" /> 
        
                        <Setter Property="Cursor" Value="Hand"/>  
        
                        <Setter Property="Template">  
        
                            <Setter.Value> 
        
                                <ControlTemplate TargetType="{x:Type ToggleButton}">  
        
                                    <Grid x:Name="Button" Margin="0,4,0,0" HorizontalAlignment="Right" 
        
                                          VerticalAlignment="Top" Width="16" Height="16">  
        
                                        <Rectangle Stroke="#FF027BA6" HorizontalAlignment="Stretch" 
        
                                              VerticalAlignment="Stretch" Width="Auto" Height="Auto" 
        
                                              RadiusX="3" RadiusY="3" Fill="#FF00A2DC"/>  
        
                                        <Rectangle x:Name="CollapsedVisual" HorizontalAlignment="Left" 
        
                                              VerticalAlignment="Top" Width="2" Height="8" RadiusX="0" 
        
                                              RadiusY="0" Fill="#FFFFFFFF" Margin="7,4,0,0" /> 
        
                                        <Rectangle RadiusX="0" RadiusY="0" Fill="#FFFFFFFF" 
        
                                              HorizontalAlignment="Left" Margin="4,7,0,0" 
        
                                              VerticalAlignment="Top" Width="8" Height="2" /> 
        
                                    </Grid> 
        
                                </ControlTemplate> 
        
                            </Setter.Value> 
        
                        </Setter> 
        
                    </Style> 
        
                    <!--Converter for CheckState--> 
        
                    <s:CheckStateConverter x:Key="CheckStateConverter" /> 
        
                    <c:CellbackGroundColorConverter  
        
                                        x:Key="colorConverter" /> 
        
                    <!--Bindings collection for the RadTreeViewItems--> 
        
                    <Style x:Key="BindingsCollection"  TargetType="{x:Type telerikNavigation:RadTreeViewItem}" > 
        
                        <Setter Property="CheckState" Value="{Binding Checked, Mode=TwoWay, Converter={StaticResource CheckStateConverter}}" /> 
        
                        <Setter Property="IsSelected" Value="{Binding Selected, Mode=TwoWay}" /> 
        
                        <Setter Property="IsExpanded" Value="{Binding Expanded, Mode=TwoWay}" /> 
        
                    </Style> 
        
                    <DataTemplate x:Key="MessageName">  
        
                        <TextBlock Text="{Binding MessageName}" ToolTip="Message Name" Foreground="Black" FontSize="10"></TextBlock> 
        
                    </DataTemplate> 
        
                    <HierarchicalDataTemplate   
        
                        x:Key="PacketInfo"   
        
                        ItemTemplate="{StaticResource MessageName}"   
        
                        ItemsSource="{Binding Messages}">  
        
                        <TextBlock Text="{Binding PacketName}" ToolTip="Packet Name" Foreground="Blue" FontSize="10"/>             
        
                    </HierarchicalDataTemplate> 
        
                    <!--End of setup for Popup TreeView--> 
        
                </UserControl.Resources> 
        
                <UserControl.ContextMenu> 
        
                    <ContextMenu> 
        
                        <MenuItem  Click="MenuItem_Click" Header="{x:Static p:Resources.ViewPackets}" Icon="" InputGestureText="{x:Static p:Resources.ControlR}" /> 
        
                    </ContextMenu> 
        
                </UserControl.ContextMenu> 
        
                <ContentControl Width="200" 
        
                                  Height="100" 
        
                                  Padding="2" 
        
                                  Canvas.Left="360" 
        
                                  Canvas.Top="60" 
        
                                  Template="{StaticResource DesignerItemTemplate}" 
        
                                > 
        
                    <Grid   
        
                        Width="Auto"   
        
                        Height="Auto" > 
        
                        <Grid.ColumnDefinitions> 
        
                            <ColumnDefinition Width="13*" /> 
        
                            <ColumnDefinition Width="187*" /> 
        
                        </Grid.ColumnDefinitions> 
        
                        <Border CornerRadius="5" 
        
                              IsHitTestVisible="False" 
        
                              BorderBrush="#E0E0E0" 
        
                              BorderThickness="0,1,0,0" 
        
                              Background="{DynamicResource FrameBackground}" Grid.ColumnSpan="2" /> 
        
                        <Border BorderBrush="Black" 
        
                              BorderThickness="0,0,0,1" 
        
                              CornerRadius="5" Grid.ColumnSpan="2" /> 
        
                        <Border Background="WhiteSmoke" CornerRadius="5" Margin="5,5,5,25" IsHitTestVisible="False" Grid.ColumnSpan="2" /> 
        
                        <Border BorderBrush="White" BorderThickness="0,0,1,1" CornerRadius="5" Margin="5,5,5,25" Grid.ColumnSpan="2" /> 
        
                        <Border BorderBrush="Black" BorderThickness="1,1,0,0" CornerRadius="5" Margin="5,5,5,25" Grid.ColumnSpan="2">  
        
                            <telerikGrid:RadGridView x:Name="PacketRadGridView" 
        
                                EnableColumnVirtualization="True"   
        
                                EnableRowVirtualization="True" 
        
                                AutoGenerateColumns="False"   
        
                                  CanUserFreezeColumns="False"   
        
                                 ItemsSource="{Binding ReceivedPackets}"   
        
                                IsReadOnly="True" 
        
                                DataLoadMode="Asynchronous"   
        
                                > 
        
                                <telerikGrid:RadGridView.Resources> 
        
                                    <Style x:Key="CustomColorCellStyle" TargetType="{x:Type telerik:GridViewCell}">  
        
                                        <Setter Property="Background" Value="{Binding Converter={StaticResource colorConverter}}">  
        
                                        </Setter> 
        
                                    </Style> 
        
                                </telerikGrid:RadGridView.Resources> 
        
                                <telerik:RadGridView.ChildTableDefinitions> 
        
                                    <telerik:GridViewTableDefinition> 
        
                                    </telerik:GridViewTableDefinition> 
        
                                </telerik:RadGridView.ChildTableDefinitions> 
        
                                <telerik:RadGridView.Columns> 
        
                                    <telerik:GridViewDataColumn DataMemberBinding="{Binding PacketName}" Header="Packet" /> 
        
                                </telerik:RadGridView.Columns> 
        
                                <telerik:RadGridView.HierarchyChildTemplate> 
        
                                    <DataTemplate> 
        
                                        <telerik:RadGridView   
        
                                            x:Name="RadGridView1"   
        
                                            CanUserFreezeColumns="False"   
        
                                            AutoGenerateColumns="False"   
        
                                            ItemsSource="{Binding Messages}"   
        
                                            ShowGroupPanel="False"   
        
                                            IsReadOnly="True" 
        
                                            Loaded="RadGridView1_Loaded">  
        
                                            <telerik:RadGridView.Columns> 
        
                                                <telerik:GridViewDataColumn UniqueName="Variable" DataMemberBinding="{Binding MessageName}" Header="Variable" /> 
        
                                                <telerik:GridViewDataColumn UniqueName="Value" CellStyle="{StaticResource CustomColorCellStyle}" DataMemberBinding="{Binding Value}" Header="Value"/>  
        
                                            </telerik:RadGridView.Columns> 
        
                                        </telerik:RadGridView> 
        
                                    </DataTemplate> 
        
                                </telerik:RadGridView.HierarchyChildTemplate> 
        
                            </telerikGrid:RadGridView> 
        
                        </Border> 
        
                        <Popup x:Name="packetPopup" StaysOpen="False" Width="300" Height="300"   
        
                         Placement="Mouse" Closed="packetPopup_Closed">  
        
                            <Border BorderBrush="#FF3F509D" BorderThickness="5,5,3,3">  
        
                                <Grid Background="White">  
        
                                    <Grid.RowDefinitions> 
        
                                        <RowDefinition Height="*" /> 
        
                                        <RowDefinition Height="10" /> 
        
                                    </Grid.RowDefinitions> 
        
                                    <Grid.ColumnDefinitions> 
        
                                        <ColumnDefinition Width="*" /> 
        
                                        <ColumnDefinition Width="10" /> 
        
                                    </Grid.ColumnDefinitions> 
        
                                    <telerikNavigation:RadTreeView   
        
                                        SelectionMode="Extended"   
        
                                        IsLineEnabled="True"   
        
                                        ItemsOptionListType="CheckList"   
        
                                        IsOptionElementsEnabled="True"   
        
                                        IsRootLinesEnabled="True"   
        
                                        IsTriStateMode="True" 
        
                                        ItemsSource="{Binding PacketDefinitions}"   
        
                                        ItemTemplate="{StaticResource PacketInfo}"   
        
                                        ExpanderStyle="{StaticResource Expander}"   
        
                                        Checked="RadTreeView_Checked"   
        
                                        Unchecked="RadTreeView_Checked"   
        
                                        telerikAnimation:AnimationManager.IsAnimationEnabled="False"   
        
                                        ScrollViewer.HorizontalScrollBarVisibility="Auto"   
        
                                        ScrollViewer.VerticalScrollBarVisibility="Auto"   
        
                                        ItemContainerStyle="{StaticResource BindingsCollection}"/>  
        
                                    <Thumb Grid.Row="0" Grid.Column="1"   
        
                            Cursor="SizeWE" 
        
                            Style="{StaticResource PopupThumb}"/>  
        
                                    <Thumb Grid.Row="1" Grid.Column="0"   
        
                            Cursor="SizeNS" 
        
                          Style="{StaticResource PopupThumb}"/>  
        
                                    <Thumb Grid.Row="1" Grid.Column="1"   
        
                            Cursor="SizeNWSE" 
        
                          Style="{StaticResource PopupThumb}"/>  
        
                                </Grid> 
        
                            </Border> 
        
                        </Popup> 
        
                    </Grid> 
        
                </ContentControl> 
        
            </UserControl>

I have the above user control it is bound to an Items Control which has an ItemsPanelTemplate of type Canvas. I am able to drag and drop the user control around the canvas but when I try resize the user control using the resize thumb, the user control goes into drag mode. I have tried moving the telerikDragDrop:RadDragAndDropManager.AllowDrag="True" to inner controls but then the User Control will not drag on the Canvas. How can I have a drag-able User Control that is also re-sizable?
Here is the code for the the Items control:

    
            <Grid> 
        
                    <ItemsControl x:Name="WidgetItemsControl"  ItemsSource="{Binding WidgetViews}"  Margin="5" > 
        
                            <ItemsControl.ItemsPanel> 
        
                                <ItemsPanelTemplate> 
        
                                    <Canvas  x:Name="WidgetCanvas" Background="#303030" Width="Auto" Height="Auto" ClipToBounds="True" telerikDragDrop:RadDragAndDropManager.AllowDrop="True"  > 
        
                                        <Canvas.ContextMenu> 
        
                                            <ContextMenu Name="WidgetContextMenu">  
        
                                                <MenuItem Command="{Binding NewWidgetCommand}" Header="{x:Static p:Resources.NewWidget}" Icon="{StaticResource NewImage}" InputGestureText="{x:Static p:Resources.ControlW}" /> 
        
                                            </ContextMenu> 
        
                                        </Canvas.ContextMenu> 
        
                            </Canvas> 
        
                                </ItemsPanelTemplate> 
        
                            </ItemsControl.ItemsPanel> 
        
                    <ItemsControl.ItemContainerStyle> 
        
                        <Style> 
        
                            <Setter Property="Canvas.Left" Value="{Binding Left}" /> 
        
                            <Setter Property="Canvas.Top" Value="{Binding Top}" /> 
        
                        </Style> 
        
                    </ItemsControl.ItemContainerStyle> 
        
                </ItemsControl> 
        
                </Grid>

Thanks for your help!

Steve Burns

DragAndDrop

answered on 10 Mar 2010

3 answers

124 views

It takes a long long time!!!!

Hello....

I am currently working with a grouped RadGridView in which I must add three Sum AggregateFunctions.

The code that I use to do this is the following

radGridInvoiceDetails.ItemsSource = null;
if (CurrentMaster != null)
{
    var collection = from d in dc.InvoiceDetails
                     where d.IdInvoiceMaster == CurrentMaster.Id
                     orderby d.IdProductType, d.ProductDescription, d.BillNumber
                     select d;

    radGridInvoiceDetails.ItemsSource = collection.ToList();
}

GroupDescriptor descriptor = new Telerik.Windows.Data.GroupDescriptor();

descriptor.Member = "ProductFamilyDescription";
descriptor.SortDirection = ListSortDirection.Ascending;
radGridInvoiceDetails.GroupDescriptors.Add(descriptor);

descriptor = new Telerik.Windows.Data.GroupDescriptor();
descriptor.Member = "ProductDescription";
descriptor.SortDirection = ListSortDirection.Ascending;

var sumFunction = new Telerik.Windows.Data.SumFunction();
sumFunction.ResultFormatString = "{0:N2}";
sumFunction.SourceField = "ProductQuantity";
sumFunction.Caption = "Totale Quantità";
descriptor.AggregateFunctions.Add(sumFunction);

sumFunction = new Telerik.Windows.Data.SumFunction();
sumFunction.ResultFormatString = "{0:N2}";
sumFunction.SourceField = "TotalBill";
sumFunction.Caption = "Totale Imponibile";
descriptor.AggregateFunctions.Add(sumFunction);

sumFunction = new Telerik.Windows.Data.SumFunction();
sumFunction.ResultFormatString = "{0:N2}";
sumFunction.SourceField = "TotalVAT";
sumFunction.Caption = "Totale Con IVA";

descriptor.AggregateFunctions.Add(sumFunction);

radGridInvoiceDetails.GroupDescriptors.Add(descriptor);

The result of this is wonderful but it takes up to 90 seconds to load less than 1500 records.

I have read something about QueryableCollectionView but I did not find enough to understand if and how it can help me.

Is there any suggestion to spend less time to have the same result??

Thanks a lot in advance...

Nick

GridView

answered on 10 Mar 2010

10 answers

137 views

application not working after update to q3

Hi,

I have a simple app very similar to the carousel demo (First look), the app was working fine with 2009 Q2, but after upgrade to 2009 Q3, the app throws the following error:

System.Reflection.TargetInvocationException was unhandled

Message="Exception has been thrown by the target of an invocation."

Source="mscorlib"

StackTrace:

at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)

at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)

at System.Delegate.DynamicInvokeImpl(Object[] args)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)

at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

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

at System.Threading.ExecutionContext.runTryCode(Object userData)

at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)

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, Boolean isSingleParameter)

at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

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

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.TranslateAndDispatchMessage(MSG& msg)

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

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

at CuiraWPF.App.Main() in D:\projects2\own\XMPP messenger\client\Cuira\CuiraWPF\obj\Debug\App.g.cs:line 0

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

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

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

at System.Threading.ThreadHelper.ThreadStart()

InnerException: System.InvalidOperationException

Message="Added item does not appear at given index '3'."

Source="PresentationFramework"

StackTrace:

at System.Windows.Data.ListCollectionView.AdjustBefore(NotifyCollectionChangedAction action, Object item, Int32 index)

at System.Windows.Data.ListCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)

at Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.cs:line 506

at Telerik.Windows.Data.DataItemCollection.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.cs:line 725

at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 32

at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 482

at Telerik.Windows.Data.QueryableCollectionView.RefreshAndRaiseCollectionChanged(NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 557

at Telerik.Windows.Data.QueryableCollectionView.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 640

at Telerik.Windows.Data.QueryableCollectionView.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 631

at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 32

at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)

at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)

at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)

at System.Collections.ObjectModel.Collection`1.Add(T item)

at CuiraWPF.Code.MessengerHelper.<>c__DisplayClass17.<Connection_OnRosterItem>b__13() in D:\projects2\own\XMPP messenger\client\Cuira\CuiraWPF\Code\MessengerHelper.cs:line 305

InnerException:

The code line 305 is just a : ContactList.Add(current);

Any clues?

Additional information:

I found a temp fix:

I have an event handler that is listening when the collection changes, every time the observable collection is changed, it is reordered, I created a class that inherits from ObservableCollection, I have used that class on Silverlight with your components and it works fine, as I mentioned, the code works fine with Q2 and WPF, my temp solution was to comment the sort code and its working now, not the way that I need, but at least is displaying data.

Carousel

answered on 10 Mar 2010

1 answer

69 views

How move SeriesItemLabel to Right?

Hello:

In a chart of HorizontalBarSeriesDefinition, the SeriesItemLabel are over bar of right to left. I need this label of left to right ( label must be out of the bar). I used the style over SeriesItemLabel with margin = {20,0,0,0}. However, the value is dynamic and continuously over the bar.

have you some solution?

Chart

answered on 10 Mar 2010

2 answers

288 views

RadButton.ContentStringFormat

    
            <Window x:Class="WpfApplication6.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="350" Width="525"> 
        
                    <DockPanel> 
        
                        <telerik:RadButton Content="{Binding ElementName=_slider, Path=Value}" ContentStringFormat="{}{0:p0}" VerticalAlignment="Center" HorizontalContentAlignment="Center" MinWidth="50" BorderBrush="Transparent" BorderThickness="0" Background="Transparent"/> 
        
                        <telerik:RadSlider x:Name="_slider" HandlesVisibility="Visible" VerticalAlignment="Center" Minimum="0.1" EnableSideTicks="True" TickFrequency="0.1" IsSnapToTickEnabled="True" Maximum="4" Value="1"/> 
        
                    </DockPanel> 
        
            </Window>

Making the RadButton a WPF Button produces the proper "100%" string (en-US culture). The RadButton produces "1"
This seems to me to be a bug.

Buttons

answered on 10 Mar 2010

1 answer

168 views

Access cells in dynamic radgridview

I have the following scenario

I have an ItemsCollection in which the ItemsSource is bound to an observablecollection of DataTables. These datatables are dynamically generated at runtime.

When the grid is loaded I want to loop through each of the cells and set a tooltip and background color of the cell based on some condition.

How can I do this?

Thanks,

Billy Jacobs

GridView

answered on 09 Mar 2010

1 answer

40 views

show all panes in Radpanegroup

hi,
we want to show all opened panes in panegroup on the leftside.it is urgent
please help me.

General Discussions

answered on 09 Mar 2010

4 answers

589 views

source code build instructions

I just downloaded the source codes for WPF RadControls in order to comply with the document titled "Technical guidelines for protecting Telerik RadControls for Silverlight binaries when redistributed with other applications". However, I can't find the "source code building instructions" that is supposed to have been bundled within the ZIP File. I tried opening the WPF solution directly from VS.NET 2008 but I got several "Project Inaccessible" and other build errors when i tried to rebuild the solution.

please advise.

thanks!

General Discussions

answered on 09 Mar 2010

0 answers

104 views

Expression Columns in RadGridView

Hi,
DevEx has a nice feature called Expression columns for their grid with expression editor. One can use the expression editor to create an expression for a column run time.
Is there anything like that available for RadGridView either in Beta or in the current release version?
thanks
Nick

General Discussions

asked on 09 Mar 2010

1 answer

64 views

CellValidating-Event not fired with ControlTemplate

Hi,
i have a gridview with checkboxcolumns (set as controltemplates) like this one:
<telerik:GridViewDataColumn x:Name="colReview" Header="Review Needed?" DataMemberBinding="{Binding IsReviewNeeded}">
                                    <telerik:GridViewDataColumn.CellStyle >
                                        <Style TargetType="GridView:GridViewCell">
                                            <Setter Property="Template">
                                                <Setter.Value>
                                                    <ControlTemplate TargetType="GridView:GridViewCell">
                                                        <Border x:Name="PART_CellBorder" Background="{Binding Background, RelativeSource={RelativeSource TemplatedParent}}" BorderThickness="0,0,1,1" BorderBrush="Silver">
                                                            <CheckBox Tag="CheckSecurity#AssayDialogPlates_Review" x:Name="PART_ContentPresenter" Margin="5,0,0,0"
                                                                HorizontalAlignment="Left"
                                                                VerticalAlignment="Center"
                                                                IsChecked="{Binding IsReviewNeeded, Mode=TwoWay}" />
                                                        </Border>
                                                    </ControlTemplate>
                                                </Setter.Value>
                                            </Setter>
                                        </Style>
                                    </telerik:GridViewDataColumn.CellStyle>
                                </telerik:GridViewDataColumn>

and the grid have the CellValidating-Event. For each other cell, the CellValidating-Event is fired but not for the checkbox-Columns. Any suggestions? I need to use the columns this way!
Thx

GridView

answered on 09 Mar 2010

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