Completed
Last Updated: 17 Dec 2015 12:26 by ADMIN
RadControls are slow when using at design time in a form containing a lot of controls, split containers and table layout panels
Completed
Last Updated: 01 Jun 2015 11:23 by ADMIN
Approved
Last Updated: 11 Mar 2019 14:39 by ADMIN
1. to enter edit text box I have to click the mouse twice. first click in the area of the text box, second start edit

2. entering or living acro control cause all document to refresh (blinking effect)
Completed
Last Updated: 16 Mar 2018 11:26 by Dimitar
To reproduce:
- Add RadLayoutControl to a form.
- Change the Language property at design time.
- You will receive the following message: There is already a command handler for the menu command '1496a755-94de-11d0-8c3f-00c04fc2aae2 : 103'. 

Workaround:
- Reopen the designer.
Completed
Last Updated: 20 Dec 2010 05:30 by ADMIN
ADMIN
Created by: Stefan
Comments: 0
Category: UI for WinForms
Type: Bug Report
3
Project Update Utility throws unhandled exception when you try to upgrade project which files are not checked-out from source control.
Completed
Last Updated: 18 Jan 2019 15:14 by ADMIN
ADMIN
Created by: Dess | Tech Support Engineer, Sr.
Comments: 3
Category: UI for WinForms
Type: Bug Report
3
To reproduce: run the sample project, open the test.rtf file and start scrolling with the mouse. As a result, you will encounter the following error:

************** Exception Text **************
System.ArgumentException: Parameter is not valid.
   at System.Drawing.Image.get_RawFormat()
   at System.Drawing.Graphics.IgnoreMetafileErrors(Image image, Int32& errorStatus)
   at System.Drawing.Graphics.DrawImage(Image image, Single x, Single y, Single width, Single height)
   at System.Drawing.Graphics.DrawImage(Image image, RectangleF rect)
   at Telerik.WinControls.RichTextEditor.UI.GDIPaintingContext.DrawImage(Image image, RectangleF rectangle, Double opacity)
   at Telerik.WinControls.RichTextEditor.UI.Image.PaintCore(IPaintingContext context)
   at Telerik.WinControls.RichTextEditor.UI.UIElement.Paint(IPaintingContext context)
   at Telerik.WinControls.RichTextEditor.UI.FrameworkElement.PaintElement(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.DoOwnPaint(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintOverride(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadControl.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   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.RadRichTextEditor.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)
Under Review
Last Updated: 19 Nov 2018 12:47 by ADMIN
ADMIN
Created by: Dess | Tech Support Engineer, Sr.
Comments: 0
Category: UI for WinForms
Type: Bug Report
3
To reproduce: add a RadLabel and change its cursor to Hand.

 this.radLabel1.Cursor = Cursors.Hand;

The PixelatedHandCursor.png shows the poor quality of the cursor which should be improved.

Workaround: https://stackoverflow.com/questions/6016995/un-antialiased-hand-cursor-in-windows-forms-apps/6017174#6017174

    public class LinkLabelEx : RadLabel
    {
        private const int WM_SETCURSOR = 0x0020;
        private const int IDC_HAND = 32649;

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr LoadCursor(IntPtr hInstance, int lpCursorName);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        private static extern IntPtr SetCursor(IntPtr hCursor);

        protected override void WndProc(ref Message m)
        {
            if (m.Msg == WM_SETCURSOR)
            {
                // Set the cursor to use the system hand cursor
                SetCursor(LoadCursor(IntPtr.Zero, IDC_HAND));

                // Indicate that the message has been handled
                m.Result = IntPtr.Zero;
                return;
            }

            base.WndProc(ref m);
        }
    }

The ImprovedCursorRendering.png  shows the improved cursor. 
Completed
Last Updated: 25 Apr 2019 08:43 by ADMIN
Workaround:

            this.radChat1.ChatElement.InputTextBox.TextBoxItem.TextBoxControl.Multiline = true;
            this.radChat1.ChatElement.InputTextBox.ButtonsStack.Children.Remove(this.radChat1.ChatElement.ShowToolbarButtonElement);
            this.radChat1.ChatElement.InputTextBox.ButtonsStack.Children.Remove(this.radChat1.ChatElement.SendButtonElement);
            StackLayoutElement stack = new StackLayoutElement();
            stack.MinSize = new Size(0, 60);
            this.radChat1.ChatElement.InputTextBox.Parent.Children.Add(stack);
            this.radChat1.ChatElement.InputTextBox.Parent.Children.Remove(this.radChat1.ChatElement.InputTextBox);
            stack.StretchHorizontally = true;
            stack.Orientation = Orientation.Horizontal;
            stack.Children.Add(this.radChat1.ChatElement.InputTextBox);
            stack.Children.Add(this.radChat1.ChatElement.ShowToolbarButtonElement);
            stack.Children.Add(this.radChat1.ChatElement.SendButtonElement);
            this.radChat1.ChatElement.ShowToolbarButtonElement.StretchHorizontally = false;
            this.radChat1.ChatElement.SendButtonElement.StretchHorizontally = false;
Approved
Last Updated: 28 Aug 2018 12:12 by ADMIN
ADMIN
Created by: Hristo
Comments: 0
Category: UI for WinForms
Type: Bug Report
2
Workaround: manually increase the font of the controls

protected override void OnShown(EventArgs e)
{
    base.OnShown(e);

    var dpi = NativeMethods.GetSystemDpi();

    this.Font = new Font(this.Font.Name, this.Font.Size * dpi.X / 96, this.Font.Style);
    this.radMenu1.Font = new Font(this.radMenu1.Font.Name, this.radMenu1.Font.Size * dpi.X / 96, this.radMenu1.Font.Style);
    this.radCommandBar1.Font = new Font(this.radCommandBar1.Font.Name, this.radCommandBar1.Font.Size * dpi.X / 96, this.radCommandBar1.Font.Style);
}
Approved
Last Updated: 29 Mar 2019 13:39 by ADMIN
How to reproduce: check the attached video
Workaround: select a color from a different tab or use the color picker
Approved
Last Updated: 16 May 2019 06:18 by ADMIN
When the Interactive Form Fields are in read-only mode, the user should not be able to change the value of the field. The associated Form Field widgets should not interact with the user, e.g. they should not respond to mouse clicks or change their appearance in response to mouse motions.
Declined
Last Updated: 20 Feb 2014 09:58 by ADMIN
FIX. RadPageView the isContentVisible property should work in all modes.

RESOLUTION: This property should work only in ExplorerBar mode by design.
Completed
Last Updated: 21 May 2015 08:11 by ADMIN
As workaround please, rename the controls with Find & Replace from VS Editor.
Declined
Last Updated: 20 Feb 2014 09:41 by ADMIN
FIX. RadPageView - newly added page should be automatically selected in the properties window in design time
Comment: When the above is implemented and a new page is added the following happens:
1. The RadPageView smart tag menu is closed
2. The new page is selected (the new page is a different component)
3. The smart tag menu of the new page is opened.
This actually breaks the user experince instead of making it better.
Completed
Last Updated: 19 Feb 2019 14:12 by ADMIN

To reproduce: 

-Open the FileExplorer example. 

- Resize the panel (see attached).

Approved
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.

Completed
Last Updated: 13 May 2019 21:18 by Kevin
Release R2 2019 (LIB 2019.1.415)
Created by: Benjamin
Comments: 6
Category: UI for WinForms
Type: Bug Report
2

Use attached to reproduce.

Workaround:

public RadForm1()
{
    InitializeComponent();
    radPdfViewer1.ContainerElement.BookmarksTree.SelectedNodeChanged += BookmarksTree_SelectedNodeChanged;
}

private void BookmarksTree_SelectedNodeChanged(object sender, Telerik.WinControls.UI.RadTreeViewEventArgs e)
{
    Telerik.Windows.Documents.Fixed.Model.Navigation.BookmarkItem bookmark = e.Node.Tag as Telerik.Windows.Documents.Fixed.Model.Navigation.BookmarkItem;

    if (bookmark != null && bookmark.Destination == null)
    {
        GoToAction goToAction = bookmark.Action as GoToAction;
        if (goToAction != null && goToAction.Destination != null)
        {
            radPdfViewer1.PdfViewerElement.GoToDestination(goToAction.Destination);
        }
    }
}

Completed
Last Updated: 23 May 2019 13:20 by ADMIN
Release R2 2019 SP1 (LIB 2019.2.527)
Created by: Kun
Comments: 1
Category: UI for WinForms
Type: Bug Report
2
Use attached to reproduce!
Approved
Last Updated: 01 May 2019 10:30 by ADMIN
Created by: Canon Fazenbaker
Comments: 0
Category: UI for WinForms
Type: Bug Report
2
Open the attached file and search for "test". In addition the Find dialog disappears for some time after the result is shown.
Completed
Last Updated: 23 May 2019 13:20 by ADMIN
Release R2 2019 SP1 (LIB 2019.2.527)

ChildRowHeight can be set on the main table element of the control like this:

this.radGridView1.TableElement.ChildRowHeight = 750;

When the grid is in a hierarchy and a parent row is expanded, the inner child template will create a new table element and its ChildRowHeight is 205 which is the default value. It would be expected that the height of the inner table element is initially set as the height of the main table element of the control.

A possible workaround is to handle the ChildViewExpanded event of the grid this way:

private void RadGridView1_ChildViewExpanded(object sender, Telerik.WinControls.UI.ChildViewExpandedEventArgs e)
{
    GridTableElement tableElement = this.radGridView1.CurrentView as GridTableElement;
    if (tableElement != null && e.ParentRow.HierarchyLevel == 1)
    {
        tableElement.ChildRowHeight = 750;
        tableElement.InvalidateMeasure(true);
    }
}

 

 

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