Use the attached project to reproduce.
Workaround:var combo = toolbar.ChildrenOfType<PercentComboBox>().FirstOrDefault();
Customers are reporting an issue when trying to copy content in an application hosted on a remote machine (there are reports using TigerVNC and Citrix). The exception is thrown from the Clipboard class with a message: OpenClipboard failed (Exception from HRESULT: 0x800401D0 (CLIPBRD_E_CANT_OPEN)). It seems like such a behavior could be reproduced when the clipboard is already opened by another application. Here is a discussion on the matter: https://stackoverflow.com/questions/68666/clipbrd-e-cant-open-error-when-setting-the-clipboard-from-net Fix available in LIB Version 2018.3.1029.
This might result in invisible annotations.
Instead, we should not visualize them and they should not be interactable with the mouse. Fix available in LIB Version 2018.2.730.
When importing documents containing Interactive FormFields with an empty collection of Normal state appearances, a NullReferenceException is thrown, which leads to non-editable FormFields in PdfViewer. Fix available in LIB Version 2018.2.730.
Usually, the entries are on neighboring rows. However, some producers introduce some extra blank rows between entries and this causes exception in RadPdfViewer implementation. Fix available in R2 2018 SP1 release version.
The width values from the widths PDF property should be taken with priority compared to the font file calculations. Fix available in R2 2018 SP1 release version.
RadPdfViewer's AcroForm property ViewersShouldRecalculateWidgetAppearances should be respected when being set to true. In this case, RadPdfViewer should recalculate all widget appearances and this would resolve the issue with empty form field widgets after opening such PDF document.
An ArgumentException is thrown internally as the font name is null. However, the name is defined in the base font and can be obtained from it. Fix available in LIB Version 2018.1.402.
This is reproducible when the field VariableTextProperties has zero value for font size. Fix available in LIB Version 2018.1.402.
This happens only in scenarios when the widget has On state appearance defined and Off state appearance missing. If both appearances are missing then RadPdfViewer recalculates the appearances and the checkbox is successfully selected and deselected.
The file contains the following: 68.637 604.561 455.981 -107.996 re 72.237 604.561 l S Instead of the more usual 68.637 604.561 455.981 -107.996 re S 72.237 604.561 l S Both are valid but the first seems to create a problem. Fix available in LIB Version 2018.1.319.