Last Updated: 27 May 2019 10:47 by ADMIN
Created by: Bernhard
Comments: 0
Category: Diagram, DiagramRibbonBar, DiagramToolBox
Type: Bug Report

The loading time is very slow when there are 100 connections and the connection bridge is set to Bow

Use attached to reproduce. 

Last Updated: 24 May 2019 04:56 by ADMIN
The decimal separator is removed when exporting with German culture on Windows Server 2012
Last Updated: 24 May 2019 05:13 by ADMIN


I'm populating a CardView from a BindingList:

CardView1.DataSource = BindingList<Model1>;


Aftre loading the information inside the cards is not displayed until i click on a card (see attachment), after clicking on a card all the cards display the information correctly

Last Updated: 14 May 2019 12:56 by ADMIN
Attached files (in Grid.zip)
- SQL Server 2014 Express - Create DB.sql                 - Create the database Telerik
- SQL Server 2014 Express - Create tables.sql             - Create tables and insert test data
- Database relations.PNG                                           - Graphical view from Visual Studio
- Error messages when trying to open Property Builder.PNG

How to reproduce the problem
- Create the database and tables (including data) with attached sql files
- Create a WinForms application with an empty RadForm
- Add a new data source to the project and select the created Telerik DB with all tables
- Add a RadGridView to the form
- Create an event handler for the form Load event handler
- Add a TelerikDataSet to the form
- Add an ObjectTableAdapter to the form
- Fill the created adapter from table Object in the form Load event handler
- Add a binding source to the form and set data source to the data set and the member to table Object
- Select radGridView1 and set data source to the created binding source object. Data member is left empty.
- Open Property Builder and press the Build button and create details views
- Run project. Everything looks ok.
- Stop running.
- Select radGridView1 and try to open Property Builder. An error message is generated (see attached file Error messages...
- Save changes and exit studio. Studio is hanging and the process must be kiled.

Last Updated: 10 May 2019 06:11 by ADMIN
When the attribute is defined but no value is set to it, the format provider cannot import the content and throws NullReferenceException.
Last Updated: 09 May 2019 10:23 by ADMIN
The EI keyword defines an operator for ending the image data. When the stream contains the same sequence, the parser treats that as an end of the image data. As a result, the image and the following content cannot be properly parsed and there is missing content when the document is visualized.
Last Updated: 13 May 2019 11:54 by ADMIN
Created by: Roman
Comments: 5
Category: GridView
Type: Bug Report


I am having issues with DateTime editor in the grid. We have custom date/time format for our dates - "HH:mm:ss dd-MMM-yyyy" and the datetime editor is set to free form date time with this mask. When user typed a value in the editor it is passed to FreeFormDateTimeProvider.Validate method, which calls DateInput.ParseDate. DateTimeLexer splits this kind of values just fine, but obviously time related tokens comes first and then the date related tokens.

Unfortunately DateTimeParser.Parse method is made the way that it parse date at first and then time from the tokens list. In my case this means time value is parsed and the date value is dropped to default. Why didn't you check that if after ParseDate and ParseTime calls the date portion is null but there are still remaining tokens in the list, so you may call ParseDate one more time?

Do you have any suggestion how could I resolve this issue? Everything related to date time parsing is not extendable at all, starting from DateInput, most of the classes and methods are not public and even some public methods are not virtual. Can I have the Telerik free form date time typing capabilities in the editor but still have time part before date part?

Last Updated: 01 May 2019 10:30 by ADMIN
Created by: Canon Fazenbaker
Comments: 0
Category: UI for WinForms
Type: Bug Report
Open the attached file and search for "test". In addition the Find dialog disappears for some time after the result is shown.
Last Updated: 26 Apr 2019 06:12 by ADMIN

Use the following code snippet:

            this.radMaskedEditBox1.Mask = "99/99/99/99/99/99";
            this.radMaskedEditBox1.MaskType = Telerik.WinControls.UI.MaskType.Standard;
            this.radMaskedEditBox1.PromptChar = ' ';
            ((StandartMaskTextBoxProvider)this.radMaskedEditBox1.MaskedEditBoxElement.Provider).TryGetStandardProvider().InsertKeyMode = InsertKeyMode.Overwrite;

When the cursor is just before the last "/", if you enter a number, then the cursor does not move after this last "/". Then entering another digit overwrites the last digit typed.

Last Updated: 18 Apr 2019 08:15 by ADMIN

Populate a RadListView with data, apply ListViewType.DetailsView and disable the ShowGridLines property.

With the ControlDefault theme it works, but if you apply the CrystalDark theme, the grid lines are still visible

Last Updated: 08 Apr 2019 08:07 by ADMIN

Create a brand new project and add a ShapedForm. Please follow the steps illustrated in the attached gif file.

Last Updated: 20 Mar 2019 12:27 by ADMIN

LineSeries lineSeries = new LineSeries();
lineSeries.DataPoints.Add(new CategoricalDataPoint(6, DateTime.Now));
lineSeries.DataPoints.Add(new CategoricalDataPoint(4, DateTime.Now.AddDays(1)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(7, DateTime.Now.AddDays(2)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(5, DateTime.Now.AddDays(3)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(3, DateTime.Now.AddDays(4)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(8, DateTime.Now.AddDays(5)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(7, DateTime.Now.AddDays(6)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(10, DateTime.Now.AddDays(7)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(4, DateTime.Now.AddDays(8)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(5, DateTime.Now.AddDays(9)));
lineSeries.DataPoints.Add(new CategoricalDataPoint(2, DateTime.Now.AddDays(10)));

DateTimeContinuousAxis continuousAxis = new DateTimeContinuousAxis();
continuousAxis.PlotMode = AxisPlotMode.OnTicks;
continuousAxis.LabelFormat = "{0:d}";
continuousAxis.ScaleBreakStyle = ScaleBreakStyle.Ragged;
lineSeries.HorizontalAxis = continuousAxis;

DateTimeContinuousAxis horizontalAxis = radChartView1.Axes.Get<DateTimeContinuousAxis>(0);

AxisScaleBreak scaleBreakItem = new AxisScaleBreak();
scaleBreakItem.Name = "Item1";
scaleBreakItem.From = DateTime.Now.AddDays(3);
scaleBreakItem.To = DateTime.Now.AddDays(6);

Last Updated: 19 Mar 2019 07:32 by ADMIN

To reproduce: 

- Add items with the same display member open the drop-down and select the second.

- Select another control on the form and then reopen the popup.

- The first item is selected.


class MyMultiColumnComboBox : RadMultiColumnComboBox
    protected override void OnLostFocus(EventArgs e)
        if (this.DropDownStyle == Telerik.WinControls.RadDropDownStyle.DropDownList)

Last Updated: 13 Mar 2019 12:42 by ADMIN

How to reproduce: 

this.radDiagram1.RoutingService.Router = new Telerik.Windows.Diagrams.Core.OrgTreeRouter() { TreeLayoutType = Telerik.Windows.Diagrams.Core.TreeLayoutType.TipOverTree };

this.radDiagram1.RouteConnections = true;

Last Updated: 07 Mar 2019 14:47 by ADMIN
Created by: Philippe
Comments: 1
Category: ImageEditor
Type: Bug Report

For the first time, I tried to use the ImageEditor.

Open a 6000x4000 pixels file.

Click on Sharpen tool.

Click on the numeric up-down widget to go from 0 to 1.

Result: CRASH

An unhandled exception of type 'System.OutOfMemoryException' occurred in Telerik.WinControls.UI.dll

What happens ? Component limited in dimensions ?

OS has 16GB of memory. 

Thank you in advance,


Last Updated: 01 Mar 2019 12:57 by ADMIN

Please refer to the attached sample project.

1. Run the application, Excel will be opened.

2. In the Add-ins tab, click button2. A form with a RadMenu will be shown.

3. Close Excel but leave the form opened. As a result Excel hangs.

Last Updated: 28 Feb 2019 14:41 by Ioannis

Populate RadMultiColumnComboBox with data and enable the auto filter functionality. Apply a CompositeFilterDescriptor with two text columns. Try to filter entering several letters and press Tab. You will notice that the SelectedIndexChanged event is not fired in this case. However, if only one FilterDescriptor is added, not a CompositeFilterDescriptor, the selection will be properly updated. 

Please refer to the attached sample project and gif file which illustrates the behavior. 

Last Updated: 22 Feb 2019 12:25 by ADMIN
Use attached to reproduce. 
Last Updated: 17 Apr 2019 09:38 by ADMIN
Caret jumps several symbols to the right when arabic or persian is used and user deletes the dot symbol. As a result the wrong symbol is deleted.
Last Updated: 14 Feb 2019 14:09 by ADMIN

The performance of the DayView when the control is bound to a large number of recurring appointments and it is grouped by resources needs to be improved.