Questions on UI for WPF Forum

4 answers

212 views

Is it possible to sort on GridViewSelectColumn?

I would like to sort my RadGridView on the GridViewSelectColumn, moving the selected rows to the top if possible. Do you have any demos to show how this is done?

GridView

answered on 21 Jun 2011

1 answer

109 views

Change value text for particular integer

Hello,

I'd like to use numericupdown from 0 to maxvalue. But is it possible to display "auto" instead of "0".

Because i need to refer to "0" as a special number...

Have you an idea ?

Otherwise i will use a combobox...

Thanks
Aurore

NumericUpDown

answered on 21 Jun 2011

3 answers

91 views

Gauges takes too long to render

We have an application where we are rendering about 30 gauges in the tab control (about 10 gauges per tab) and we have a significant delay when switching between the tabs. I have created a sample application to illustrate the issue.

Note that the last page, contains a bunch of rectangles (400) with gradients, opacity, shadow/blur effects applied to them, but still they are rendered nearly twice as fast compared to the Telerik gauges.

P.S. How can attach a sample project in the forum?

Gauges

answered on 21 Jun 2011

2 answers

166 views

Problem in "adjusting" appointment's times

Hi Telerik,

I'm experiencing a strange behavior of the ScheduleView. I set schedule to view by day and had one hour increment as shown below. The ScheduleView had SnapAppointments="True". The problem is I couldn't adjust down to one hour slot, but I could change it through appointment edit dialog. For example, I couldn't slide end time from 3AM to 2AM where start time is 1AM. Any ideas what went wrong? Thanks.

        <!-- ScheduleView -->
        <telerik:RadScheduleView x:Name="scheduleView"
                                Grid.Row="2"                                 
                                MaxTimeRulerExtent="500" 
                                AppointmentsSource="{Binding Tasks, Mode=TwoWay}"
                                ResourceTypesSource="{Binding ScheduleOptionList, Mode=TwoWay}"
                                GroupDescriptionsSource="{Binding GroupCollection, Mode=TwoWay}"
                                CurrentDate="{Binding DefaultDate}"								
                                NavigationHeaderVisibility="Collapsed"
                                AllowDrop="True"
                                SnapAppointments="True"   
                                Height="Auto">
 
            <telerik:RadScheduleView.DragDropBehavior>
                <local:ScheduleDragDropBehavior/>
            </telerik:RadScheduleView.DragDropBehavior>
 
            <telerik:RadScheduleView.AppointmentItemContentTemplate>
                <DataTemplate>
                    <StackPanel>
                        <TextBlock Text="{Binding Subject}"  FontWeight="Bold"/>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding Start, StringFormat={}{0:hh:mm tt}}"/>
                            <TextBlock Text=" - "/>
                            <TextBlock Text="{Binding End, StringFormat={}{0:hh:mm tt}}"/>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </telerik:RadScheduleView.AppointmentItemContentTemplate>
 
            <telerik:RadScheduleView.ActiveViewDefinition>
                <telerik:DayViewDefinition Orientation="Horizontal" FirstDayOfWeek="Monday" TimerulerMajorTickStringFormat="{}{0:htt}" 
                                            MinorTickLength="1h"  MajorTickLength="1h" MinTimeRulerExtent="700" />
            </telerik:RadScheduleView.ActiveViewDefinition>
 
            <telerik:RadScheduleView.GroupHeaderContentTemplateSelector>
                <telerik:OrientedGroupHeaderContentTemplateSelector>
                    <telerik:OrientedGroupHeaderContentTemplateSelector.VerticalDayViewDateTemplate>
                        <DataTemplate>
                            <Grid Visibility="Hidden"/>
                        </DataTemplate>
                    </telerik:OrientedGroupHeaderContentTemplateSelector.VerticalDayViewDateTemplate>
                    <telerik:OrientedGroupHeaderContentTemplateSelector.VerticalResourceTemplate>
                        <DataTemplate>
                            <TextBlock Width="60" Margin="5,0" Text="{Binding FormattedName}" 
                                       HorizontalAlignment="Center" VerticalAlignment="Center" />
                        </DataTemplate>
                    </telerik:OrientedGroupHeaderContentTemplateSelector.VerticalResourceTemplate>
                </telerik:OrientedGroupHeaderContentTemplateSelector>
            </telerik:RadScheduleView.GroupHeaderContentTemplateSelector>
 
        </telerik:RadScheduleView>

ScheduleView

answered on 21 Jun 2011

1 answer

98 views

Formatting the Carousel pages, items

Hello,

I am new to this control. How do you format the "cards" that display as you cycle through the records.

Thanks,
Reid

Carousel

answered on 21 Jun 2011

2 answers

56 views

Custom Aggregates in Q3 2009 sp2

How do i add my own aggregating function in the radgridview version Q3 2009 SP2? Or rather, is there any way to obtain the aggregated value from the normal SumFunction in the footer?

General Discussions

answered on 21 Jun 2011

1 answer

44 views

No design time style support?

As I browse the threads, my understanding is that there's no design time support if I'm using a Telerik theme across the whole of my application. Is this true? I have to set this in the code behind and I can't just set a merged resource in the xaml?

-Greg

General Discussions

answered on 21 Jun 2011

1 answer

143 views

RadMenuItem IsEnabled not be updated

I have a UserControl which contains numerous other controls including a RadMenu. Part of the functionality of this UserControl is to launch a modal window, I perform this by setting the UserControl:IsEnabled property to false. All the contained controls are disabled which is the desired behaviour. However, when I reset the container's IsEnabled property to true, the menu items remain disabled whereas all the other controls are active again.

I noticed that the IsEnabledChanged event is not triggered on the reactivation of the the container.

Any help would be greatly appreciated.

Menu

answered on 21 Jun 2011

4 answers

170 views

Exception when copy pasting data from gridview to excel

Hello Telerik team,

With the below grid settings I select multiple cells of the grid keeping the Ctrl button pressed.

<telerik:RadGridView x:Name="radgvActivity"

Grid.Row="2"

Margin="0"

IsReadOnly="False"

RowIndicatorVisibility="Visible"

ScrollMode="RealTime"

AutoGenerateColumns="False"

EnableRowVirtualization="True"

CanUserFreezeColumns="False"

CanUserResizeColumns="True"

Width="780" Height="600"

SelectionMode="Extended"

ClipboardCopyMode="All"

ClipboardPasteMode="Default"

SelectionUnit="Cell"

BeginningEdit="radgvActivity_BeginningEdit"

RowEditEnded="radgvActivity_RowEditEnded"

>

Now, on click of Ctrl + C, I get a System.NullReferenceException {"Object reference not set to an instance of an object."}
Please find the stack trace of the exception.

at Telerik.Windows.Controls.GridView.Clipboard.Writers.WriterBase.<GetSelectedItemsAsClipboardData>b__3(GridViewColumn c)

at System.Linq.EnumerableSorter`2.ComputeKeys(TElement[] elements, Int32 count)

at System.Linq.EnumerableSorter`1.Sort(TElement[] elements, Int32 count)

at System.Linq.OrderedEnumerable`1.<GetEnumerator>d__0.MoveNext()

at System.Linq.Enumerable.ElementAtOrDefault[TSource](IEnumerable`1 source, Int32 index)

at Telerik.Windows.Controls.GridView.Clipboard.Writers.WriterBase.RenderHeaderRow()

at Telerik.Windows.Controls.GridView.Clipboard.Writers.WriterBase.Render()

at Telerik.Windows.Controls.GridView.Clipboard.Writers.HtmlWriter.Render()

at Telerik.Windows.Controls.GridView.GridViewDataControl.CopyToClipboard()

at Telerik.Windows.Controls.GridView.GridViewDataControl.CopyExecuted(Object sender, ExecutedRoutedEventArgs e)

at System.Windows.Input.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)

at System.Windows.Input.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)

at System.Windows.Input.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)

at System.Windows.Input.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)

at System.Windows.Input.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)

at System.Windows.UIElement.OnExecutedThunk(Object sender, ExecutedRoutedEventArgs e)

at System.Windows.Input.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)

at System.Windows.Input.RoutedCommand.ExecuteImpl(Object parameter, IInputElement target, Boolean userInitiated)

at System.Windows.Input.RoutedCommand.ExecuteCore(Object parameter, IInputElement target, Boolean userInitiated)

at System.Windows.Input.CommandManager.TranslateInput(IInputElement targetElement, InputEventArgs inputEventArgs)

at System.Windows.UIElement.OnKeyDownThunk(Object sender, KeyEventArgs e)

at System.Windows.Input.KeyEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)

at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)

at System.Windows.Input.InputManager.ProcessStagingArea()

at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)

at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)

at System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)

at System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)

at System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)

at System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)

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.WrappedInvoke(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 System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)

at System.Windows.Interop.HwndSource.OnPreprocessMessageThunk(MSG& msg, Boolean& handled)

at System.Windows.Interop.HwndSource.WeakEventPreprocessMessage.OnPreprocessMessage(MSG& msg, Boolean& handled)

at System.Windows.Interop.ComponentDispatcherThread.RaiseThreadMessage(MSG& msg)

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

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

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

at System.Windows.Application.RunDispatcher(Object ignore)

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

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

at System.Windows.Application.Run()

at ~\obj\Debug\App.g.cs:line 0

at System.AppDomain._nExecuteAssembly(Assembly 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)

at System.Threading.ThreadHelper.ThreadStart()

I donot get this exception on setting the selection unit to fullrow. SelectionUnit="FullRow"

Please help with this matter.

Thanks,
Regards,
Mausami

GridView

answered on 21 Jun 2011

1 answer

135 views

Unvisible DataItemCollection

Hi,

actually in my wpf application, users can apply changes to any rows they want and eventually when they click on a "Save" button to apply pending changes.

To acheive that, I loop into "Items" property to check any row object for a specific flag in my object. The problem I have is, if the users apply a column filter before they click on the "Save" button, some changes can be missing because they are outside the filter range.

So, "Items" property contain only visible rows in GridView. Do we have acces to another DataItemCollection that contain all the data without the filters???

Thank's

GridView

answered on 21 Jun 2011