Last Updated: 30 Jul 2021 14:46 by ADMIN
Release R3 2021
Last Updated: 30 Jul 2021 12:00 by ADMIN
Release R3 2021
Workaround: Handle the MouseWheel event of the control

private void RadSpreadsheet1_MouseWheel(object sender, MouseEventArgs e)
    int offset = this.radSpreadsheet1.SpreadsheetElement.VerticalScrollBar.SmallChange * 3;
    int x = e.Delta < 0 ? offset : -offset;
    this.radSpreadsheet1.SpreadsheetElement.VerticalScrollBar.ClampValue = true;
    this.radSpreadsheet1.SpreadsheetElement.VerticalScrollBar.Value += x;

    RadWorksheetEditor editor = this.radSpreadsheet1.SpreadsheetElement.ActiveSheetEditor as RadWorksheetEditor;
    if (editor != null)
        IRadWorksheetEditorPresenter presenter = (IRadWorksheetEditorPresenter)editor.GetType().GetField("activePresenter", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).GetValue(editor);
        presenter.SetVerticalOffset(presenter.VerticalOffset + x);
Last Updated: 30 Jul 2021 11:54 by ADMIN
Release R3 2021

Using this font is OK:

Font("Calibri", 24, FontStyle.Regular, GraphicsUnit.Pixel)

But using this font is not OK, the Unit is not respected:

Font("Calibri", 24, FontStyle.Italic | FontStyle.Bold, GraphicsUnit.Pixel)

The control also is increased in height.

Last Updated: 30 Jul 2021 11:49 by ADMIN
Release R3 2021
Add a RadDropDownList to the form at design time with the Font set in Points. It doesn't redraw when the font unit is changed to Pixels until form is reopened.
Last Updated: 30 Jul 2021 11:37 by ADMIN
Release R3 2021
Created by: Dennis
Comments: 0
Category: Spreadsheet
Type: Bug Report

I am using the Spreadsheet control and noticed that when I move to the right by clicking on the horizontal scroll arrow, the scroll does not seem to work as expected. I have to click on the scroll arrow 4 times for it to work correctly. 
Last Updated: 30 Jul 2021 10:27 by ADMIN
Double-Clicking the fx button in the formula bar allows modifications to protected worksheet
Last Updated: 30 Jul 2021 09:18 by ADMIN
Release R3 2021
Created by: David
Comments: 0
Category: TextBox
Type: Bug Report

I have a form with two TextBox controls with ShowEmbeddedLabel and RepositionEmbeddedLabel enabled. The TextBox font size is 18P and the Embedded Label sizes are 18P and 10P. 

When running, the first textbox with the larger EL looks and works fine.  The textbox with the 10P EL, not so much.  The EL rests in the center of the control, rather than the bottom.  What property have I overlooked to have the 10P EL  align to the bottom of the control rather than hover in the center?

I've tried disabling TextBoxElement.AutoSize and setting its Size, but that really confuses the renderer. Messing the the LightVisualElements, didn't help either. Resizing the control almost works, but the descenders, the 'tails', of letters are clipped then the EL is bottom aligned.



        public RadForm1()

            radTextBox1 = new Telerik.WinControls.UI.RadTextBox();
            radTextBox1.Font = new System.Drawing.Font("Segoe UI", 18F);
            radTextBox1.Location = new System.Drawing.Point(10, 10);
            radTextBox1.Size = new System.Drawing.Size(300, 80);
            radTextBox1.EmbeddedLabelText = "RTB1: 18F x 18F";
            radTextBox1.ShowEmbeddedLabel = true;
            radTextBox1.TextBoxElement.Font = new System.Drawing.Font("Segoe UI", 18F);

            radTextBox2 = new Telerik.WinControls.UI.RadTextBox();
            radTextBox2.Font = new System.Drawing.Font("Segoe UI", 18F);
            radTextBox2.Location = new System.Drawing.Point(10, 90);
            radTextBox2.Size = new System.Drawing.Size(300, 80);
            radTextBox2.EmbeddedLabelText = "RTB2: 18F x 10F";
            radTextBox2.ShowEmbeddedLabel = true;
            radTextBox2.TextBoxElement.Font = new System.Drawing.Font("Segoe UI", 10F);


Last Updated: 29 Jul 2021 11:17 by ADMIN
Release R3 2021

1.Make the sheet protected

2. Paste using Ctrl+V

The first message shows:


Last Updated: 29 Jul 2021 09:44 by ADMIN
Release R3 2021
Please refer to the attached sample project and follow the steps form the gif file.
Last Updated: 29 Jul 2021 08:54 by ADMIN
Release R3 2021

Right-click an empty cell and select Copy. 

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentNullException: Value cannot be null.
Parameter name: text
   at System.Windows.Forms.Clipboard.SetText(String text, TextDataFormat format)
   at System.Windows.Forms.Clipboard.SetText(String text)
   at Telerik.WinForms.Controls.Spreadsheet.Clipboards.ClipboardEx.MSClipboardSetText(String text)
   at Telerik.WinForms.Controls.Spreadsheet.Clipboards.ClipboardEx.SetTextInternal(String text)
   at Telerik.WinForms.Controls.Spreadsheet.Clipboards.ClipboardEx.SetDataInternal(String text, WorksheetFragment fragment)
   at Telerik.WinForms.Controls.Spreadsheet.Worksheets.RadWorksheetEditor.Copy()
   at Telerik.WinForms.Controls.Spreadsheet.Worksheets.RadWorksheetEditorCommands.<>c.<InitializeCommands>b__575_94(RadWorksheetEditor editor, Object parameter)
   at Telerik.WinForms.Controls.Spreadsheet.Commands.RadSheetEditorDelegateCommand`1.ExecuteOverride(Object parameter)
   at Telerik.WinForms.Controls.Spreadsheet.Commands.RadSheetEditorCommandBase`1.Execute(Object parameter)
   at Telerik.WinControls.UI.RadSpreadsheetElement.<CreateDefaultWorkbookContextMenu>b__184_1(Object <p0>, EventArgs <p1>)
   at Telerik.WinControls.RadElement.OnClick(EventArgs e)
   at Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)
   at Telerik.WinControls.UI.RadMenuItem.OnClick(EventArgs e)
   at Telerik.WinControls.RadElement.DoClick(EventArgs e)
   at Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)
   at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)
   at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)
   at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)
   at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)
   at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at Telerik.WinControls.RadControl.WndProc(Message& m)
   at Telerik.WinControls.UI.RadPopupControlBase.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Last Updated: 29 Jul 2021 07:04 by ADMIN
Release R3 2021

RadMenuComboItem is vanishing before can be reached if its not in main manu colum.



1: works

2: works NOT - menu is popping in but if you move the mouse from "style" to the combobox its vanishing before you can do anything.

Last Updated: 28 Jul 2021 10:54 by ADMIN
For example, going at a slow pace when clicking the right zoom arrow, a user can switch from 50% to 55% to 60% to 65% to 70% to 75% to 80%, and so-forth. The user properly progresses through (let's say) 10 increments, eventually arriving at 100%.    However, if the user clicks the arrow the same 10 times, but at a faster pace, many of the increments are skipped over.  In one test, 10 rapid clicks brought me from 50% up to 250%.  
Last Updated: 27 Jul 2021 13:01 by ADMIN
Release R3 2021

Hi Guys,

             the colour scheme on your SchedulerBinderDataSource Appointment Mapping form is barely visible

Could you please darken the text so I can map things without squinting.


Last Updated: 26 Jul 2021 10:09 by ADMIN

Hello support,


i use the radBrowseEditor.


Here the code:

        private readonly string ActualPath_LiteDB = "";

        public F_ApplicationsSettings()

            //set up actual paths
            ActualPath_LiteDB = Settings.PathToLogLiteDB;
            radBrowseEditor_db_path.Value = ActualPath_LiteDB;

            this.Text = F_Translations.GetTranslationText("settings");

When i set the DialogType to FolderBrowseDialog the initial directory the its working:

But if i set it the DialogType to RadOpenFolderDialog its not working. Its always showing the Desktop folder:


Last Updated: 26 Jul 2021 06:27 by ADMIN
Loading corrupt PDF results in non-trappable error and exception
Last Updated: 23 Jul 2021 10:49 by ADMIN
Please open the attached project and open the designer. You will notice that a lot of code is serialized in the Designer.cs. The attached gif file illustrates the steps.
Last Updated: 21 Jul 2021 11:24 by ADMIN
  1. Filter the column "code" to show only "(Blanks)"
  2. Hit the "Save Layout" button to save the layout into a string
  3. Hit the "Load Layout" button. The row is gone
Last Updated: 21 Jul 2021 06:07 by ADMIN

This doesn't work in both .NET Framework and .NET 5.

Add a RadForm and set its AutoScroll property to true at design time. When you add any controls that are located outside the form's size a scroll bar appears. However, it seems to be disabled and the user is not allowed to scroll at design time. 

Last Updated: 20 Jul 2021 11:05 by ADMIN
Release R3 2021
The calendar selection is not synced with the value after a paste operation.
Last Updated: 20 Jul 2021 11:04 by ADMIN
Release R3 2021
Created by: Ioannis
Comments: 3
Category: Spreadsheet
Type: Bug Report



So here's what happens. I create a workbook and a worksheet in that wb which I assign as the workbook of a RadSpreadSheet by RadSpreadSheet..Workbook = wb

The first time I assign a name to the first (and only sheet) created in the creation of the wb, the name does appear on that sheet.

Then some code takes this workbook ByVal, creates a new Sheet, makes that sheet the wb's ActiveWorksheet and then changes the ws's name.

You can see in the debugging that the worksheet does have the new name i put there ("2018-05"), but visually this 2nd worksheet has the default name "sheet 2".

Then that wb which is returned by the function is assigned as the RadSpreadSheet's workbook

If I run the code again, so a 3rd sheet is created, then the 3rd sheet will visually have the default name "sheet 3", however in the debugger it says "2018-06" as its name; but most importantly, now sheet 2 has magically changed to what I was seeing its name to be in the debugger ("2018-05").


I'm assuming that If I'm changing the sheet names at runtime, I need to call some method on the Workbook element or something like that in order to update the names. I just couldn't find which method to call.


Best regards,

Ioannis Mamalikidis.

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