Image into LightVisualElement is not thread safe and this may leads to exceptions if you access it from several threads. 

Steps to reproduce:

1.Create form that use theme with images.
2.Open this form several times.
3. Move mouse fast over them until exception occur.

1.Drag a RadGridView to a form
    2.Click Dock in parent from its SmartTag menu
    3.Now change the Dock to None from the Properties window
    4.Open again the smart tag and you will see that the link's text is "Undock in parent container" but the control is not docked.

The same issue occurs with all controls that have "Dock in parent container" action link.

If you use HTML-like text formatting and put text in <u></u> tag the spaces between words would not be underlined.

Currently the sgen tool raises an exception when executing it on RadControls and RadControls.UI. There is also an XmlSerialization exception when  loading the application.

The LabelFormat property of the RadChartView axes does not take effect

Steps to reproduce:
1. Drag a grid on the form
2. Drag one or more controls over the grid - at this point in the Document Outline you can see the dragged control is a child of the grid
3. Open the Property Builder of the grid and close it - at this point the dragged control disappears

Workaround:
1. Open the Designer.cs file, and locate the line, where the control is added to the grid e.g.
            this.radGridView2.Controls.Add(this.radButton4);
and change it to:
            this.Controls.Add(this.radButton4);

If need be, set the Location property of the control at design time, to position it at the desired place.

2. Alternatively, you can place the control outside the grid bounds and after selecting it, use the arrow keys to position is over the grid. This will not make it its child, hence the issue will not appear.

To reproduce:
- Drag RadDropDownList control on a form, expand its DropDownListElement property, and change the ItemHeight
- Another case is, on a RadForm, expand FormElement>TitleBarElement and set its Visibility to Collapsed

Workaround: set the desired property at runtime
radDropDownList1.DropDownListElement.ItemHeight = 22;

One should be able to export to a stream instead to a file as well.

To reproduce:

1. Add a RadContextMenu to the form.
2. Change at design time its Animation Enabled property to false.
3. Save the changes and reopen the form.
4. AnimationEnabled property value is set back to true.

To reproduce:
- Open the Element Hierarchy Editor and resize it.

Note: other operations that affect the image's size should also handle large images.

No Workaround.

It is possible to create a custom resize dialog as follows:
        public class MyRadImageEditor : RadImageEditor
        {
            protected override RadImageEditorElement CreateImageEditorElement()
            {
                return new MyRadImageEditorElement();
            }
        }

        public class MyRadImageEditorElement : RadImageEditorElement
        {
            public override void ShowResizeDialog()
            {
                this.ShowDialog(typeof(MyResizeDialog));
            }
        }

        public class MyResizeDialog : RadForm
        {
            public MyResizeDialog(RadImageEditorElement imageEditorElement)  
            {
               
            }

            //TODO custom dialog
        }

When the current SpanLayoutBox is split (for example by inserting space), the DocumentPosition created with trackDocumentChangeEvents option (with some of the constructor accepting the boolean 'trackDocumentChangeEvents' parameter) jumps back with two symbols.

The application may freeze for a small period of time if the page view control is created in the DoWork event of BackgroundWorker and later added to the form in its RunWorkerCompleted event.

Until released the text can be cleared this way:

GridSearchCellElement searchCell = this.radGridView1.TableElement.FindDescendant<GridSearchCellElement>();
if (searchCell != null)
{
    searchCell.SearchTextBox.Text = "";
}

The whole cell is not filled when setting the background.

To reproduce:

- Set the MaxDropDownItems and the DefaultItemsCountInDropDown and open the popup on HDPI.

This would allow switching the focus between form field controls by using the Tab key.

How to reproduce: 
float ratio = .5f;
private void radButton1_Click(object sender, EventArgs e)
{
    float ratio = .5f;
    this.radPdfViewer1.ExportPage(1, @"..\..\img.jpeg", ratio, true, ImageFormat.Png);
}

Workaround: change the resolution of the document after exporting it with a ratio = 1
private void radButton1_Click(object sender, EventArgs e)
{
    float ratio = .5f;
    Bitmap bmp = this.radPdfViewer1.ExportPage(1, 1, true, ImageFormat.Png);
    Bitmap resizedImage = this.ResizeImage(bmp, (int)(bmp.Width * ratio), (int)(bmp.Height * ratio));
    resizedImage.Save(@"..\..\img2.jpeg");
}

public Bitmap ResizeImage(Image image, int width, int height)
{
    Rectangle destRect = new Rectangle(0, 0, width, height);
    Bitmap destImage = new Bitmap(width, height);
    destImage.SetResolution(image.HorizontalResolution, image.VerticalResolution);

    using (var graphics = Graphics.FromImage(destImage))
    {
        graphics.CompositingMode = CompositingMode.SourceCopy;
        graphics.CompositingQuality = CompositingQuality.HighQuality;
        graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
        graphics.SmoothingMode = SmoothingMode.HighQuality;
        graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;

        using (var wrapMode = new ImageAttributes())
        {
            wrapMode.SetWrapMode(WrapMode.TileFlipXY);
            graphics.DrawImage(image, destRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, wrapMode);
        }
    }

    return destImage;
}