Last Updated: 01 Jul 2019 14:56 by ADMIN
Release R3 2019 (LIB 2019.2.708)
Maximizing the form cuts off the RadRibbonBar and decreases the content padding.
Last Updated: 01 Jul 2019 14:52 by ADMIN
Release R3 2019 (LIB 2019.2.708)
I would like set timeline start at the same date like scheduler. 
But sometimes it don't refresh (see attachment).
What can I do?
kind regards
Last Updated: 01 Jul 2019 14:49 by ADMIN
Release R3 2019 (LIB 2019.2.708)

Hi there 

I found this issue in RadTreeView filtering

I have a 2-level text structure programmatically created

after creation I use the command


This is the only event handled


Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged

        radtreeNavigazione.Filter = txtFilter.Text

End Sub

When I set a filter with at least 4 letters and then I select the text in the filter box and press "back", the app freezes with cpu working at 50 %. 


I use this workaround to solve

Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged

        radtreeNavigazione.Filter = txtFilter.Text

End Sub


I use this workaround

Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged


      radtreeNavigazione.Filter = txtFilter.Text


End Sub


In this way it works, but I wanted to report the issue.

Thank you in advance for your attention


Last Updated: 01 Jul 2019 14:38 by ADMIN
Release R3 2019 (LIB 2019.2.708)

The latest release of WinForms causes a fatal exception when adding an item to a BindingList that is used in a RadGridView and a RadGanttView.

The first time an item is added there is not issue.

The second time an item is added, the following exception occurs.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.WinControls.UI.GanttViewBindingProvider.GanttTaskList.IndexOf(Object key)
   at Telerik.WinControls.UI.GanttViewBindingProvider.GanttTaskList.get_Item(Object key)
   at Telerik.WinControls.UI.GanttViewBindingProvider.AddTaskByCM(CurrencyManager cm, Int32 index)
   at System.ComponentModel.ListChangedEventHandler.Invoke(Object sender, ListChangedEventArgs e)
   at System.Windows.Forms.CurrencyManager.OnListChanged(ListChangedEventArgs e)
   at System.Windows.Forms.CurrencyManager.List_ListChanged(Object sender, ListChangedEventArgs e)
   at System.ComponentModel.BindingList`1.OnListChanged(ListChangedEventArgs e)
   at System.ComponentModel.BindingList`1.FireListChanged(ListChangedType type, Int32 index)
   at MissileWarningThreatPlanner.EventWindow.EventList.GenMissileEventWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e) in C:\Shape Source\VS\MissileWarningThreatPlanner - VS2010\MissileWarningThreatPlanner\EventWindow\EventList.cs:line 5329
   at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)

This is code that has not been modified for quite some time.  There has been no issue until the latest release.

I do not have time to try to create a simple example to try to reproduce the error at this time.  I will if possible.

For now, we are forced to revert to a previous version.



Last Updated: 01 Jul 2019 14:37 by ADMIN
Release R3 2019 (LIB 2019.2.708)

The issue can be reproduced by adding a RadBarCode to the form and setting its value this way:

this.radBarcode1.Value = "";

Last Updated: 01 Jul 2019 07:38 by ADMIN
The dialog should match the strings contained in the different document parts (headers, footers, footnotes, endnotes, comments).
Last Updated: 28 Jun 2019 08:50 by ADMIN
Release R2 2019 SP1
Created by: Sasa
Comments: 2
Category: GridView
Type: Bug Report
RadGridView data source contains date values from years 2018 and 2019. After adding Excel like filters to the RadGridView and selecting year 2019 no rows were displayed, even though some values did match the filter condition (see attachment).
Last Updated: 27 Jun 2019 09:53 by ADMIN
Add a new DeferredFilter property on RadGridView level which controls whether the filtering logic will be immediately preformed on each key stroke or only by pressing Enter.
Under Review
Last Updated: 27 Jun 2019 09:40 by ADMIN

Please refer to the attached gif file. You will notice that for the GridViewMaskBoxColumn  with numeric mask the filtering doesn't work. For the other columns each key stroke filters the grid rows.

Workaround: either use a GridViewDecimalColumn or change the default editor for the GridViewMaskBoxColumn :

            this.radGridView1.EditorRequired += radGridView1_EditorRequired; 

        private void radGridView1_EditorRequired(object sender, EditorRequiredEventArgs e)
            if (this.radGridView1.CurrentColumn.HeaderText == "MaskBoxColumn")
                GridSpinEditor spinEditor = new GridSpinEditor();
                RadSpinEditorElement element = spinEditor.EditorElement as RadSpinEditorElement;
                element.ShowUpDownButtons = false;
                e.Editor = spinEditor;



In Development
Last Updated: 27 Jun 2019 06:50 by ADMIN
To reproduce:

public Form1()

    CultureInfo culture = new CultureInfo("en-US");
    culture.DateTimeFormat.FirstDayOfWeek = DayOfWeek.Monday;
    this.radScheduler1.Culture = culture;
    this.radScheduler1.ActiveViewType = Telerik.WinControls.UI.SchedulerViewType.Month;

    Appointment a = new Appointment(new DateTime(2016, 8, 29, 0, 0, 0), new DateTime(2016, 9, 5, 0, 0, 0), "Meeting");


    this.radScheduler1.FocusedDate = new DateTime(2016, 9, 1);

Please refer to the attached gif file.
Last Updated: 25 Jun 2019 06:48 by ADMIN
Last Updated: 24 Jun 2019 11:15 by ADMIN

Set the format:

dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "dd/MM/yyyy";

Enter 18 in the yaer part, the year should be set to 2018, the year should be cleared when starting to type as well.


Last Updated: 21 Jun 2019 13:15 by ADMIN
Release R3 2019
Row heights with missing CustomHeight attributes in the document are ignored.
Under Review
Last Updated: 20 Jun 2019 07:43 by ADMIN
Under Review
Last Updated: 19 Jun 2019 14:58 by ADMIN

Hello Guys,


Good Evening , As per your suggestions i make my custom treeview node with LiteVisualElements .

In That Node i have taken one StackLayoutElement and RoundRectShape assigned to it but still panel shows corners instead of round edges,

i tried with different properties and styles but not get succeed , so please help me out.

here i have attached image of my node and "stackLayoutElement" code too.

spnlControls = new StackLayoutElement();
            spnlControls.Orientation = Orientation.Horizontal;
            spnlControls.NotifyParentOnMouseInput = true;
            spnlControls.DrawFill = true;
            spnlControls.DrawBorder = true;
            spnlControls.Shape = new RoundRectShape(4);
            spnlControls.BackColor = Color.Transparent;
            spnlControls.BackColor2 = Color.Transparent;
            spnlControls.BackColor3 = Color.Transparent;
            spnlControls.BackColor4 = Color.Transparent;
            spnlControls.BorderGradientStyle = GradientStyles.Solid;
Last Updated: 19 Jun 2019 09:46 by ADMIN
Created by: Dimitri
Comments: 3
Category: GridView
Type: Bug Report

In my gridview need support of different heights of rows. I solved it with the autosize property.

But now I have a side action that the header row and filter row also react to the autosize property.

Attached you can see this behaviour...

Here my code:

Grid.MasterView.TableFilteringRow.MinHeight = 40
Grid.AutoSizeRows = True

Is there a chance to separate data rows from filter and header row?




Last Updated: 19 Jun 2019 05:34 by ADMIN

So, when I drop a RadStatusStrip on my radForm. In that object, I then add a RadWaitingBarElement. Then I change SPRING = TRUE and WAITINGSTYLE = "Dash", all in the properties window.  At design time, it looks good.  However, at run time, it reverts back to the default bar and just scrolls across the screen.  Did I find a bug? Do I need to change other properties of the RadWaitingBarElement?  Also, I noticed that when I change the WaitingIndicators in property page, those changes to take affect either. Very confusing and frustrating


 We are using Telerik version 2018.3.911.40

Last Updated: 18 Jun 2019 14:08 by ADMIN
Created by: Robin
Comments: 1
Category: Map
Type: Feature Request

I am wanting to load an image and polygon onto the Map control. I am using a KML file. I am able to load the polygon but NOT able to display the image in the map control.

i.e. if I open the KML file in google earth the image and polygon are displayed, I want to 'replicate' this in the Map control.


Below is my sample code and attached are the KML file and image files.


Dim osmProvider As New OpenStreetMapProvider()




        Me.RadMap1.Layers.Add(New MapLayer("Pens"))

        Using seatsStream As New FileStream("D:\MyTelerikMap\Farm.kml", FileMode.Open, FileAccess.Read)

            Dim elements As List(Of MapVisualElement) = KmlReader.Read(seatsStream)

            For Each item As MapVisualElement In elements

                item.BorderWidth = 1

                item.BorderColor = Color.Black

                item.BackColor = Color.Red



        End Using


        Dim MyCenter As PointG

        MyCenter.Latitude = -16.545276685809551

        MyCenter.Longitude = 28.87446081916244


        RadMap1.MapElement.BringIntoView(MyCenter, 16)


Thank you in advanced for your assistance.



Last Updated: 17 Jun 2019 14:19 by ADMIN
Release R2 2019 SP1
Hello Telerik, 

your control changed the format to Verdana when import rtf. But only in the first line. And only the first line is Arial. Is the first line with any other font formated, its all ok.

Here the code:

string rtfText = @"{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fnil\fcharset0 Arial;}{\f1\fnil\fcharset0 Tahoma;}{\f2\fnil\fcharset0 Times New Roman;}{\f3\fnil\fcharset0 Arial Unicode MS;}{\f4\fnil\fcharset0 Calibri;}}
{\colortbl ;\red0\green0\blue0;}
\viewkind4\uc1\pard\tx300\tx600\tx900\tx1200\tx1500\tx1800\tx2100\tx2400\tx2700\tx3000\tx3300\tx3600\tx3900\tx4200\tx4500\cf1\b\fs32 Arial\f1\par
\f2 Times New Roman\par
\f0 Arial\f2\par
\f3 Arial Unicode MS\par
\f4 Calibri\b0\f0\fs20\par
RtfFormatProvider rtf = new RtfFormatProvider();
this.radRichTextEditor1.Document = rtf.Import(rtfText);

this.richTextBox1.Rtf = rtfText;

In the screenshot you can see, left the standard .net rtf control and rigth the Telerik richtexteditor. 
The zip is the sample project.