Hi All, 

In Brief
I am having issues trying to style the GridViewGroupRow. These issues are probably due to virtualisation.

The Details
I am currently attempting to create an alternative style for displaying groups within a RadGridView. Basically, I want to:

• Expand the header used for the group (GridViewHeaderIndentCell) to be the same width as the column being grouped - (got this working).
• Set the Header property of this header cell (GridViewHeaderIndentCell) to the Header property of the column being grouped - (got this working).
• Restyle the GridViewGroupRow to remove the top row (all groups will be auto expanded, so the toggle button will be removed too) and to increase the side (indent) row to match the new width of the group header (the same as the column being grouped) - (mostly working).

I have some grids where the user selects a code in the first column.  Based on that code, I set some IsReadOnlyBinding MVVM properties to hide or display the rest of the columns.  This works great if the next column is always editable.  However, if the next column is sometimes read only and sometimes editable, I get odd results. 

If I set the default value to editable and then set it to read only when I select the code, that column gets focus although it does not go into edit mode.  I then have to tab again to get to my next editable field.

If I set the default value to hidden and then set it to editable when I select the code, that column gets skipped.  I can tab back to it and it is editable but obviously that is not very user friendly to have to go back and forth.

I know that the keyboard command provider is executed before the property is committed so the next keyboard action is already figured before the grid knows whether the next column is going to be read only or editable.  Is there a way to capture the focus on the cell and move it forward if the cell is read only programmatically?  Or a way to refresh the keyboard commands after the properties are set?  Any other ideas?

thanks!

Hi,

is it right wpf will not longer be developed after Windows8?

regrads ww

Hello. We've encountered a bit of a strange problem moving from RadRibbonBar Q2.2011 to RadRibbonView with Q3.2011.

At random, let's say one out of five times the ribbongroups are not shown when the application is started. We are using Prism and the steps to add ribbongroups are as following:

1. The Ribbon is declared in XAML (Shell)
2. A module is loaded and adds it's ribbontabs, using the RegionManager. 
3. Ribbongroups are added to the ribbontabs, without using the RegionManager. RibbonGroups are reused in different modules, so I want to add them dynamically in code. 

This used to work fine in Q2, but with RibbonView and Q3 the ribbongroups are not visible at random times. When switching to another RibbonTab and back again the ribbongroups are visible again.
Using Snoop I can see that the ActualHeight and ActualWidth of the RibbonGroupsPanel is wrong (18, 314), should have been 87,1248. And the alignment og the ribbongroupspanel seems a bit off, located behind the ribbontab headers.

Do you have any idea what could be the issue here, or any remedies? Remember that this only happens at random times.
I haven't tried to recreate the issue in a testproject but that could be the next step. I realize that you don't have to much to go on here, but perhaps you know of any changes made between RibbonBar and RibbonView that could leed us to the source of the problem?

Best regards
Arnstein

Hi,

I'm using the RadDataForm and i want to know if it is possible to customize the Add,Edit,Delete button.
I want to change the image of the icons and also the font size.

Is there a possible way to do this ?

Regards,
Shaimaa

Hi all,

I'm using trial version and want to try this with your example but I can't compile my application. Below is the error I got .

Error   1   The type or namespace name 'Filter' does not exist in the namespace 'Telerik.Windows.Controls.GridView' (are you missing an assembly reference?)   C:\Documents and Settings\nxhieu\Desktop\Telerik vs DevExpress\TelerikSample1\TelerikSample1\obj\x86\Debug\MainWindow.g.cs   38   41   TelerikSample1

Unfortunately, I can't find this DLL on the trial version's DLLs. Could you please help me resolve this problem? By the way, have the trial version's DLLs included this DLL (GridView.Filter). I'm looking forward to your response.

Thank in advance,

Hieu Nguyen

I have created a custom style for the RadColorEditor.
I want to add in the ability for the user to select transparent as the color.
So, I added a Border with an EventTrigger for it's MouseUp event and within that I have a StoryBoard with a ColorAnimation.
I target the SelectedColor of the TemplatedParent (the RadColorEditor) and it sets the SelectedColor to Transparent as expected.
However, after I do this, I can no longer select colors using rectangle (for selecting the saturation) and rectangle-bar (for selecting hue).

<Style x:Key="{x:Type telerik:RadColorEditor}" TargetType="{x:Type telerik:RadColorEditor}">

    <Setter Property="BorderThickness" Value="1"/>

    <Setter Property="BorderBrush" Value="#FF848484"/>

    <Setter Property="Padding" Value="12"/>

    <Setter Property="Template">

        <Setter.Value>

            <ControlTemplate TargetType="{x:Type telerik:RadColorEditor}">

                <Border x:Name="LayoutRoot" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">

                    <Grid>

                        <Grid.ColumnDefinitions>

                            <ColumnDefinition Width="*"/>

                        </Grid.ColumnDefinitions>

                        <Grid>

                            <Grid.ColumnDefinitions>

                                <ColumnDefinition Width="*"/>

                                <ColumnDefinition Width="20"/>

                            </Grid.ColumnDefinitions>

                            <Grid.RowDefinitions>

                                <RowDefinition Height="*"/>

                                <RowDefinition Height="20"/>

                            </Grid.RowDefinitions>

                            <Grid Margin="0,0,3,3">

                                <Rectangle>

                                    <Rectangle.Fill>

                                        <Binding ElementName="HuePad" Path="PointerRelativePosition.Y">

                                            <Binding.Converter>

                                                <Telerik_Windows_Controls_ColorEditor_Converters:HueConverter/>

                                            </Binding.Converter>

                                        </Binding>

                                    </Rectangle.Fill>

                                </Rectangle>

                                <Rectangle>

                                    <Rectangle.Fill>

                                        <LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">

                                            <GradientStop Color="White"/>

                                            <GradientStop Color="Transparent" Offset="1"/>

                                        </LinearGradientBrush>

                                    </Rectangle.Fill>

                                </Rectangle>

                                <Rectangle>

                                    <Rectangle.Fill>

                                        <LinearGradientBrush EndPoint="0.5,0" StartPoint="0.5,1">

                                            <GradientStop Color="Black" Offset="0"/>

                                            <GradientStop Color="#00000000" Offset="1"/>

                                        </LinearGradientBrush>

                                    </Rectangle.Fill>

                                </Rectangle>

                                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">

                                    <Telerik_Windows_Controls_ColorEditor_Pad:Pad x:Name="SaturationValuePad" MovementDirection="Both">

                                        <Grid>

                                            <Ellipse Height="12" Stroke="Black" StrokeThickness="1" Width="12"/>

                                            <Ellipse Height="10" Stroke="White" StrokeThickness="1" Width="10"/>

                                        </Grid>

                                    </Telerik_Windows_Controls_ColorEditor_Pad:Pad>

                                </Border>

                            </Grid>

                            <Grid Grid.Column="1" Margin="0,0,0,0">

                                <Rectangle>

                                    <Rectangle.Fill>

                                        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0.025">

                                            <GradientStop Color="Red"/>

                                            <GradientStop Color="#FEFFFF00" Offset="0.167"/>

                                            <GradientStop Color="#FE00FF00" Offset="0.333"/>

                                            <GradientStop Color="#FE00FFFF" Offset="0.5"/>

                                            <GradientStop Color="#FE0000FF" Offset="0.667"/>

                                            <GradientStop Color="#FEFF00FF" Offset="0.833"/>

                                            <GradientStop Color="Red" Offset="1"/>

                                        </LinearGradientBrush>

                                    </Rectangle.Fill>

                                </Rectangle>

                                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">

                                    <Telerik_Windows_Controls_ColorEditor_Pad:Pad x:Name="HuePad" MovementDirection="Y">

                                        <Grid Height="7" Width="18">

                                            <Path Data="M0,0L3.5085413,3.5085411 0,7.0170822z" Fill="Black" HorizontalAlignment="Left" Height="7" Stretch="Fill" Width="3.5"/>

                                            <Path Data="M0.06,3.5L4,0 4,7 0.06,3.515625z" Fill="Black" HorizontalAlignment="Right" Height="7" Stretch="Fill" Width="3.5"/>

                                        </Grid>

                                    </Telerik_Windows_Controls_ColorEditor_Pad:Pad>

                                </Border>

                            </Grid>

                            <Grid Margin="0,0,3,0" Grid.Row="1">

                                <Grid.ColumnDefinitions>

                                    <ColumnDefinition Width="*"/>

                                    <ColumnDefinition Width="*"/>

                                </Grid.ColumnDefinitions>

 

                                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,0,1"

                                        ToolTip="{Binding PreviousColor, RelativeSource={RelativeSource TemplatedParent}}">

                                    <Border.Background>

                                        <Binding Path="PreviousColor" RelativeSource="{RelativeSource TemplatedParent}">

                                            <Binding.Converter>

                                                <telerik:ColorToBrushConverter/>

                                            </Binding.Converter>

                                        </Binding>

                                    </Border.Background>

                                </Border>

                                <Border BorderBrush="{TemplateBinding BorderBrush}"

                                        BorderThickness="0,1,1,1" Grid.Column="1" Margin="-1,0,0,0"

                                        ToolTip="{Binding SelectedColor, RelativeSource={RelativeSource TemplatedParent}}">

                                    <Border.Background>

                                        <Binding Path="SelectedColor" RelativeSource="{RelativeSource TemplatedParent}">

                                            <Binding.Converter>

                                                <telerik:ColorToBrushConverter/>

                                            </Binding.Converter>

                                        </Binding>

                                    </Border.Background>

                                </Border>

                            </Grid>

                            <Border x:Name="TransparentOption" BorderThickness="1,1,2,1"

                                    Background="{StaticResource TemplateEditingSpaceBackground}"

                                    Grid.Row="1"

                                    Grid.Column="1">

                                <Border.Triggers>

                                    <EventTrigger RoutedEvent="Border.MouseUp" >

                                        <BeginStoryboard>

                                            <Storyboard>

                                                <ColorAnimation BeginTime="0:0:0" From="Transparent" To="Transparent"

                                                                Storyboard.TargetProperty="SelectedColor"

                                                                Storyboard.Target="{Binding RelativeSource={RelativeSource TemplatedParent}}"/>

                                            </Storyboard>

                                        </BeginStoryboard>

                                    </EventTrigger>

                                </Border.Triggers>

                            </Border>

                        </Grid>

                    </Grid>

                </Border>

 

            </ControlTemplate>

        </Setter.Value>

    </Setter>

</Style>

Thank you for your time.

I'm trying to create a grid that uses RadDataForm to display and to edit row details, and which also supports insert and delete of rows.

My current problem is getting insert to work using the same form layout as the edit.  By default, the insert-row drops you into editing the row in the grid, rather than editing a new record in a detail DataForm.

Browsing the forums showed me this thread - and with this I was able to override the GridViewNewRow template - but if that's only part of the solution, at best.

My grid has ShowInsertRow="False", instead I have a button that triggers RadGridViewCommands.BeginInsert.  When I click that, I still end up editing the rows of the grid, and not in a DataForm.

When I set ShowInsertRow="True", I don't see the "Click here to add new item" row, instead I see my GridViewNewRow template, but clearly bound incorrectly: "BindingExpression path error: 'CurrentItem' property not found on 'object'."

It seems to me that if most people who are displaying and editing row details in a data form, whether a RadDataForm or something custom, are also going to want to insert new rows using that same data form.

But if there's a way to do it, I've not been able to find it.

---  EDITED ---

OK, one thing I've figured out.  The GridViewNewRow template only controls the appearance of the "Click here to add new item" row - it has nothing to do with the row on which the editing is actually done.  Which still leaves me not knowing how to get the grid to use a RadDataForm for inserting new rows, when it is configured to use a RadDataForm to display and edit rows.

Greetings,
 
I keep getting the "theming resource not found" exception when trying to clear the current data series of a chart component, even though i patched up the Q3 2011 version with SP1. The code that throws the exception is the following:


and the stack-trace is as follows: 

Theming: Required resource not found. Please, make sure you referenced all necessary themes and resources.
(Telerik.Windows.Controls.Charting.ChartException, Telerik.Windows.Controls.Charting)
       at Telerik.Windows.Controls.Charting.BaseSeriesConverter`1.GetThemeStyle(Object chartItem, Object parameter)
       at Telerik.Windows.Controls.Charting.BaseSeriesConverter`1.Convert(Object value, Type targetType, Object parameter, CultureInfo culture)
       at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)
       at System.Windows.Data.BindingExpression.ScheduleTransfer(Boolean isASubPropertyChange)
       at MS.Internal.Data.ClrBindingWorker.NewValueAvailable(Boolean dependencySourcesChanged, Boolean initialValue, Boolean isASubPropertyChange)
       at MS.Internal.Data.PropertyPathWorker.UpdateSourceValueState(Int32 k, ICollectionView collectionView, Object newValue, Boolean isASubPropertyChange)
       at MS.Internal.Data.PropertyPathWorker.RefreshValue()
       at MS.Internal.Data.ClrBindingWorker.RefreshValue()
       at System.Windows.Data.BindingExpression.UpdateTarget()
       at System.Windows.Data.BindingExpressionBase.InvalidateCulture()
       at System.Windows.Data.BindingExpression.HandlePropertyInvalidation(DependencyObject d, DependencyPropertyChangedEventArgs args)
       at System.Windows.Data.BindingExpressionBase.OnPropertyInvalidation(DependencyObject d, DependencyPropertyChangedEventArgs args)
       at System.Windows.Data.BindingExpression.OnPropertyInvalidation(DependencyObject d, DependencyPropertyChangedEventArgs args)
       at System.Windows.DependentList.InvalidateDependents(DependencyObject source, DependencyPropertyChangedEventArgs sourceArgs)
       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.TreeWalkHelper.InvalidateTreeDependentProperty(TreeChangeInfo info, DependencyObject d, FrameworkObject& fo, DependencyProperty dp, FrameworkPropertyMetadata fMetadata, Style selfStyle, Style selfThemeStyle, ChildRecord& childRecord, Boolean isChildRecordValid, Boolean hasStyleChanged, Boolean isSelfInheritanceParent)
       at System.Windows.TreeWalkHelper.InvalidateTreeDependentProperties(TreeChangeInfo info, FrameworkElement fe, FrameworkContentElement fce, Style selfStyle, Style selfThemeStyle, ChildRecord& childRecord, Boolean isChildRecordValid, Boolean hasStyleChanged, Boolean isSelfInheritanceParent)
       at System.Windows.FrameworkElement.InvalidateTreeDependentProperties(TreeChangeInfo parentTreeState, Boolean isSelfInheritanceParent)
       at System.Windows.FrameworkElement.OnAncestorChangedInternal(TreeChangeInfo parentTreeState)
       at System.Windows.TreeWalkHelper.OnAncestorChanged(DependencyObject d, TreeChangeInfo info)
       at System.Windows.DescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
       at MS.Internal.PrePostDescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
       at System.Windows.TreeWalkHelper.InvalidateOnTreeChange(FrameworkElement fe, FrameworkContentElement fce, DependencyObject parent, Boolean isAddOperation)
       at System.Windows.FrameworkElement.OnVisualParentChanged(DependencyObject oldParent)
       at System.Windows.Media.Visual.FireOnVisualParentChanged(DependencyObject oldParent)
       at System.Windows.Media.Visual.RemoveVisualChild(Visual child)
       at System.Windows.Media.VisualCollection.DisconnectChild(Int32 index)
       at System.Windows.Media.VisualCollection.Clear()
       at System.Windows.Controls.UIElementCollection.ClearInternal()
       at System.Windows.Controls.Panel.ClearChildren()
       at System.Windows.Controls.Panel.OnItemsChangedInternal(Object sender, ItemsChangedEventArgs args)
       at System.Windows.Controls.Panel.OnItemsChanged(Object sender, ItemsChangedEventArgs args)
       at System.Windows.Controls.ItemContainerGenerator.OnRefresh()
       at System.Windows.Controls.ItemContainerGenerator.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
       at System.Windows.Controls.ItemContainerGenerator.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
       at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
       at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
       at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
       at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
       at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
       at System.Windows.Controls.ItemCollection.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
       at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
       at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
       at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
       at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
       at System.Windows.Data.ListCollectionView.RefreshOverride()
       at System.Windows.Data.CollectionView.RefreshOrDefer()
       at System.Windows.Data.ListCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)
       at System.Windows.Data.CollectionView.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
       at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(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.RadObservableCollection`1.ResumeNotifications()
       at Entersoft.Framework.Dashboard.Controls.Chart.ResetDataSeries() in D:\build\ESDev40\Framework\ESSessionServer\ESDashboard\ESDashboard.Controls\Controls\Chart.xaml.vb:line 163
       at Entersoft.Framework.Dashboard.Controls.Chart.OnDataSourceChanged() in D:\build\ESDev40\Framework\ESSessionServer\ESDashboard\ESDashboard.Controls\Controls\Chart.xaml.vb:line 658
       at Entersoft.Framework.Dashboard.Controls.Chart.set_DataSource(IEnumerable value) in D:\build\ESDev40\Framework\ESSessionServer\ESDashboard\ESDashboard.Controls\Controls\Chart.xaml.vb:line 77
       at Entersoft.Framework.Dashboard.Presentation.Xaml.XamlChartItem.PerformRefreshDataCore() in D:\build\ESDev40\Framework\ESSessionServer\ESDashboard\ESDashboard.Controls\Presentation\DashboardItems\XamlChartItem.vb:line 192

Any ideas?

Nikos

I have set the  IsLoadOnDemandEnabled  to True at the Tree level and it makes all the node's images to show like, it has children nodes to be loaded. 

In Reality, not all of the nodes are Expandable. 

Lets for example say, I need to expand first level to dynamically load the next level. In the next level of nodes, some of them may have children nodes to be loaded when you click on them dynamically and some of the nodes are already the leaf nodes, meaning they are the last node and they don't have any child node. For these leaf nodes, I don't want the Image of the node to show as Expandable. 

Only the nodes that have children nodes to be loaded need to have the Expandable icon. 

How do I handle this situation. Its misleading when you show the Expandable icon or + icon for all the nodes irrespective of whether they are the last node or not. 

Please let me know if I am making sense.