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5 answers
446 views

Hi Telerik-team,

Is it possible to select what columns should be shown in the dropdown from the GridViewMultiColumnComboBoxColumn, like it is possible in the RadMultiColumnComboBox? I could not find any documentation on that.

Thank you in advance!

 

Greetings, Mats

Dilyan Traykov
Telerik team
 answered on 06 Nov 2019
10 answers
214 views
Is there property I can bind to similar to SearchText in RadAutoCompleteBox?  I want the user to be able to add new item to the collection bound to the gird view.  Thanks.
Dilyan Traykov
Telerik team
 answered on 06 Nov 2019
3 answers
190 views
I am trying to use multiple series with ChartSeriesProvider in a bubble chart ScatterBubbleSeries. The examples I found show only one series binding. The code I wrote does not work but I am not sure ScatterBubbleSeries supports this mode at all... Is there any example of ScatterBubbleSeries binding multiple series with ChartSeriesProvider?
Martin Ivanov
Telerik team
 answered on 06 Nov 2019
1 answer
114 views

There are currently issues with RadWindow minimization after the latest version of the 2019 R3 SP1.

It works correctly when minimized by the Minimize button.
But, Click the icon on the Task Bar in Windows to minimize it, and then press the same button again to return it to its original state.
Almost the entire area behaves like a transparent state.

Test)
Set to RadWindowInteropHelper.AllowTransparency="False"

All but the left-top part of the title bar will be invisible to the screen.

 

The above issue is the same for WPF Demo Application.
With SP1 in place, is there a temporary solution to this issue?

Dimitar Dinev
Telerik team
 answered on 05 Nov 2019
4 answers
158 views

Good day! 

I have a problem with determination of selected items when IsVirtualizing="True". In attached project I used two different ways to counting selected items: 1. With binding IsSelected property, 2. Just counting of treeview SelectedItems. And both are incorrect in situation when selecting some number of treeview items by clicking with Shift button (SelectionMode="Extended"). For example, I select more than 8000 items but received next: items with IsSelected = true property: 37, selected tree view items: 980

Link to download project sample: click

Vladimir Stoyanov
Telerik team
 answered on 05 Nov 2019
7 answers
1.2K+ views

I have a exception when i try to filter the null value for the column, when having Null descriptor and other values as well.  The binding is a dynamic object, i am setting the column type as expected.

I am using the version 2019.2.618.45 of telerik dll

Argument types do not match
   at System.Linq.Expressions.Expression.Constant(Object value, Type type)
   at Telerik.Windows.Data.Expressions.OperatorValueFilterDescriptorExpressionBuilderBase.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpressionThreadSafe()
   at Telerik.Windows.Data.Expressions.FilterExpressionBuilder.CreateFilterExpression()
   at Telerik.Windows.Data.QueryableExtensions.Where(IQueryable source, CompositeFilterDescriptorCollection filterDescriptors)
   at Telerik.Windows.Data.QueryableCollectionView.CreateView()
   at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
   at Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
   at Telerik.Windows.Data.QueryableCollectionView.get_InternalCount()
   at Telerik.Windows.Data.DataItemCollection.get_Count()
   at Telerik.Windows.Controls.DataControl.ItemCoerce(DependencyObject d, Object baseValue)
   at System.Windows.DependencyObject.ProcessCoerceValue(DependencyProperty dp, PropertyMetadata metadata, EntryIndex& entryIndex, Int32& targetIndex, EffectiveValueEntry& newEntry, EffectiveValueEntry& oldEntry, Object& oldValue, Object baseValue, Object controlValue, CoerceValueCallback coerceValueCallback, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, Boolean skipBaseValueChecks)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.DataControl.Telerik.Windows.Data.Selection.ISelectorInternal.set_SelectedItem(Object value)
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicSelectedItem()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicPropertiesAndCleanUp()
   at Telerik.Windows.Data.Selection.ItemSelectionHandler.EndAllowedSelection(ItemSelectionChange selectionChange)
   at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.PerformRowSelection(Object dataItem, SelectionModificationOptions modificationOptions)
   at Telerik.Windows.Controls.GridView.Selection.CellAndRowSelectionDispatcher.HandleSelectionForCellInput(GridViewCell cell, SelectionModificationOptions allowedModifications)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.HandleMouseDownSelection(GridViewCell cell, Boolean allowDrag, Point mousePosition)
   at Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e)
   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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
   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.RaiseTrustedEvent(RoutedEventArgs args)
   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.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(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 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

 

Dilyan Traykov
Telerik team
 answered on 05 Nov 2019
1 answer
1.1K+ views

Hi Team,

       We are exporting our appointment details like below (code section) to generate .ics file. When we book an appointment in our WOOFware application, the email confirmation has an attached ICS file to add the appointment to the client's calendar.   The vcaappnt.ics attachment itself is working correctly.  However, if the client uses gmail, there is a banner at the top that allows them to add that ics to their Google calendar.

Issue:  When the appointment is close to a daylight savings time, the google calendar option is adding the appointment 1 hour later than the appointment. Please see the below,

Appointment time - Oct 31 @6 PM – 6.15PM EDT. But, in google it shows as 4.30am – 4.45am IST instead of 3:30am-3.45am IST. (please see the attachment - IST Time format)

Appointment time - Oct 31 @6 PM-6.15 PM EDT. But, in google it shows as 4pm – 4.15pmIST instead of 3pm-3.15pm IST.(please see the attachment - PDT Time format)

Code

using Telerik.Windows.Controls.ScheduleView;
ICalendar.AppointmentCalendarExporter exporter = new ICalendar.AppointmentCalendarExporter();
// appointment details exported(included timezone, location,time etc...)  
exporter.Export(appointments, sw);

The time zone will be PDT, EDT, CDT – and it will erroneously add 1 hour to the appointment(.ics file) and the time zone will say PST, EST, CST  and it will show the correct time

The actual .ics file is being generated using a Telerik library. That’s the one that is creating these RRULE entries in the .ics file.
So, different time gives in google and outlook using this .ics file? How to resolve this ?

Thanks,
Srinivasan


Uma
Top achievements
Rank 1
 answered on 05 Nov 2019
3 answers
280 views

Hi,

I want to override the select all filtering in radgridview to avoid stack over flow exception as mentioned below 

https://docs.telerik.com/devtools/wpf/controls/radgridview/filtering/faq/stackoverflow-exception

https://docs.telerik.com/devtools/wpf/controls/radgridview/filtering/how-to/howto-display-all-distinct-values

 

Is there a way I can create custom list and change the item source? 

Vladimir Stoyanov
Telerik team
 answered on 04 Nov 2019
2 answers
191 views

Hi!

I am using a pivot grid, with a PivotFieldsList, and would like to be able to allow the user to choose a custom column name when hey are setting up there table. Whilst I can set the name correctly from the backend: I was hoping to allow someone to set the name from the drop down box. I have attached a *rough* image to demonstrate what I am trying to achieve.

Thanks for your help!

Dom
Top achievements
Rank 1
 answered on 04 Nov 2019
3 answers
192 views
Hello. When i using rectangle selection via lshift key and select the objects, and i already have selected objects, layer unselect previous objects. How i can add objects in to selected objects collection via rectangle selection?
Dinko | Tech Support Engineer
Telerik team
 answered on 04 Nov 2019
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