Last Updated: 23 Jan 2020 08:35 by ADMIN

Please refer to the attached sample project and gif file which illustrates the exact steps and obtained result.

Workaround: set the DropDownStyle property to DropDown.

Last Updated: 21 Jan 2020 11:54 by ADMIN

Please refer to the attached if file. You will notice that the converter wizard will skip the designer file if the form's file end with "Settings".

Workaround: change the file name to skip ending with "Settings"

Last Updated: 24 Dec 2019 06:08 by ADMIN

Please refer to the attached sample project and the follow the steps in the gif file.

Workaround: scroll to the top and then to the bottom again to update the scrollbar's range

Last Updated: 25 Dec 2019 10:40 by ADMIN
Created by: erwin
Comments: 3
Category: GridView
Type: Bug Report


when I select the column chooser multiple times via context menu, the column chooser dialog scales multiple times.

Reproduced here with the Telerik sample application. 150 % dpi scaling.



Last Updated: 03 Jan 2020 12:29 by ADMIN


The behavior of split button makes me confused when I use split button collapsing the split panel. It locates in different position when I restore the split button by double-click. What's weirder is that double-click will make no effect when the split button located on the edge. I don't like these default behaviours.


1. Do you know how to overwrite the default behaviour of split button?

2. Is there a virtual method or some event I can reimplement?

3. I want to collapse the right panel to the right side, and restore it to the initial location, and just these to behaviours. How can I do it?


Last Updated: 24 Dec 2019 08:39 by ADMIN

I'm just starting with RadGridView and trying to figure out how to create a combobox column inside my RadGridView.  I've added a column that is of type GridViewComboBoxColumn.  I've created a BindingSource that Contains the values for the combobox.  I can't figure out how to set the datasource property of the Column to use that BindingSource.  Google search says to set the datasource property but when I'm going through the "Open Properties Builder"  and I select my combobox column I don't see that property listed under advanced for the column.



Last Updated: 19 Dec 2019 14:11 by ADMIN

hello, a few days ago in support ticket they gave me this as a solution to move to the last message of the RadChat, but it does not work, if I upload the item and then add a message it does not point me to the last one but the scroll remains in The position I leave, what I need is to know what event or how to make your RadChat the last element.


Last Updated: 17 Dec 2019 11:11 by ADMIN

I have a RadRichTextEditor. When it contains multiple lines a vertical scroll bar is shown. When I keep writing and press the enter key to insert a carriage return, it starts a new paragraph but the cursor disappears. 

When I press return at the bottom of this control I want the cursor to be kept in sight. See the screenshots I have attached. You can see that after the return you can only see the very top of the cursor, the rest is hidden. You have to actually manually scroll down to get it into view.

When you start typing, this cursor comes into view, but I want it to be in view even if you just press return. Is there a way to get it to do this?

This seems to be the default behavior of this control, as I have created a new application to show this, which doesn't contain any of the formatting which my actual application does.

Last Updated: 04 Dec 2019 14:54 by ADMIN

I have integration radscheduler and radganttview.

Load data

Dim ds as new DataSource

Dim dvAppointments As New DataView

Dim appointmentMappingInfo As New AppointmentMappingInfo()
        Dim SchedSource As New SchedulerBindingDataSource()
        appointmentMappingInfo.Mappings.Add(New SchedulerMapping("Kontrahent", "pln_kntakronim"))
        appointmentMappingInfo.Start = "pln_start"
        appointmentMappingInfo.End = "pln_stop"
        appointmentMappingInfo.Location = "pln_nr"
        appointmentMappingInfo.ResourceId = "pln_zamgidnumer"
        appointmentMappingInfo.Description = "pln_opis"
        appointmentMappingInfo.Resources = ""
        appointmentMappingInfo.Location = "pln_nrzam"
        appointmentMappingInfo.Summary = "pln_twrkod"
        appointmentMappingInfo.StatusId = "pln_status"

        dvAppointments.Table = ds.Tables("PlanowanieTamborow")
        SchedSource.EventProvider.Mapping = appointmentMappingInfo

        bsPlanowanie.DataSource = dvAppointments  'BindingSource
        SchedSource.EventProvider.DataSource = bsPlanowanie
        RadScheduler1.DataSource = SchedSource

        RadGanttView1.DataProvider = New GanttViewIntegrationProvider(RadScheduler1)

refresh data

Dim reader As System.Data.SqlClient.SqlDataReader = comm.ExecuteReader




If I refresh the Radscheduler then RadGanttView doesn't refresh

Radscheduleris working properly


Last Updated: 04 Dec 2019 11:27 by ADMIN
Created by: Jim
Comments: 0
Category: Forms/Dialogs/Templates
Type: Bug Report

Set one of the monitors to use 125% DPI scaling. Start the attached project on a monitor with 100% DPI scaling - the form is expected to be with size 400,400. Move the form to the monitor with 125% DPI scaling. You are expecting the form's size to be 500,500, but it is 507,521. Please refer to the screenshots.


Override the RadForm.ScaleControl method as follows:

    Protected Overrides Sub ScaleControl(factor As SizeF, specified As BoundsSpecified)
        Dim initialSize As Size = Me.Size
        MyBase.ScaleControl(factor, specified)
        Me.Size = TelerikDpiHelper.ScaleSize(initialSize, factor)
    End Sub

Last Updated: 02 Dec 2019 06:38 by ADMIN
Created by: n/a
Comments: 1
Category: Spreadsheet
Type: Bug Report

The UI behaivor of drag selection shows inconsistent behavior between WinForm vs WPF/Excel.

When you drag some cells for selection and keep dragging to the right (getting the out scope), the control scrolls to the right.

This behavior is common in Winform/WPF/Excel.

When you drag backward (to the left), WPF controls scroll back and so is Excel, while Winform controls does not scroll

Same thing for top and bottom scroll. Winform Spreadsheet control does not scroll. It may scrolls only to the right.

Another Caveat I see meanwhile is that when you scroll backwards until the row area, the pointer become row-resize pointer, or so

If you keep mouse moving around, it sometimes makes a horizontal line (possibly a guide for row resize?)

The issue in this case is that, it does not remove itself. the horizontal line stays there. It is not very annoying (as it is thin horizontal line) but is still a bug.


To reproduce,

create a empty Winform app, with the RadSpreadsheet Control, and Run

Drag from row C3 and to the right (around the scrollbar) the control scrolls to the right (this is not quite smooth though..)

Scroll right to AZ3 say, and drag backward back to C3, this now does not scroll back.

Same for top and bottom.

Do the same for WPF, it now works as expected

Do the same for MS Excel, it now works as expected.

Last Updated: 28 Nov 2019 06:41 by ADMIN
Created by: Rene
Comments: 1
Category: ColorDialog
Type: Bug Report

Hi Guys,


ColorDialog on higher dpi has some small problems.

1. Size of dialog is larger so there is large gap in right and bottom part.

2. Selected radio button black circle is not in center of larger circle.


Best regards


Last Updated: 22 Nov 2019 13:15 by ADMIN
When saving Form Fields in document defined with linearized PDF structure, it produces a document that fails to open in Edge.
Last Updated: 21 Nov 2019 14:32 by ADMIN

If you want to use Conditional Formatting via code (expression based formatting) you will see that it throws an exception if you set TRIM() condition.

ExpressionFormattingObject expressionCondition = new ExpressionFormattingObject(
expressionCondition.Expression = "TRIM(ContactName) = 'Maria Anders'";
expressionCondition.CellBackColor = Color.Aqua;

There is no exception if you use the same condition via "Conditional Formatting Rules Manager" form.

Last Updated: 21 Nov 2019 12:44 by ADMIN

Hi Support,


please try set the WorkBook to RadSpreadsheet.

Best regards


Last Updated: 19 Nov 2019 07:34 by ADMIN

In Word, for paragraphs in a list:

1. The bullet/number uses the value of the first line indent

2.1 The text on the first line is aligned according to the left indent when the left indent is smaller than the first line indent (the usual case).

2.2 If the first line indent is smaller than the left indent, the first line aligns with the rest of the text, using the value of the left indent property.

2.3 When there are tab stops, they are used for the position of the text. In RadRichTextBox, the text in the first line always aligns according to the FirstLine indent.

Also, tab stops can be used to position the text after the bullet/number.

Last Updated: 05 Nov 2019 08:17 by ADMIN

It seems that the GridViewColumnGroup.MinHeight has a big influence on the height of the filter cell.


this.radGridView1.AutoSizeRows = true;

Last Updated: 30 Oct 2019 02:53 by JeffSM
Created by: JeffSM
Comments: 2
Category: RibbonBar
Type: Bug Report


look at video attached,


I'm using app theme resolution windows 7, but in RadRibbonForm the caption draw very awfull. This happens since always I use Telerik, but now I got some time to report to you.

ThemeResolutionService.ApplicationThemeName = "Windows7";


What I do?




Last Updated: 28 Oct 2019 09:40 by ADMIN

When you have RadPageView within a RadDock only the selected page is visible and its content is shown. When you select another page it is blank.


For Each page As RadPageViewPage In Me.rpvMain.Pages
    If Not page.Visible Then
        page.Visible = True
        page.Visible = False
    End If
Last Updated: 24 Oct 2019 04:53 by ADMIN
The CID font may define a description of the glyph widths. By specification, the widths can be defined in two ways - with start and end CID codes or with and an array of CID codes. However, the current implementation supports only CID arrays as direct property and not as an indirect object. This leads to incorrectly imported glyph widths and text positioning issues.
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