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I'm trying to serialize a custom class that contains an AnnotationDataCollection using the below Serialize method. I keep getting an error regarding the AnnotationComment. Any way around this?

Serialize Method
public static string SerializeToString(object obj)
{
try
{
XmlSerializer ...

Hi,

I'm trying to implement a custom undo action. I want to add a custom action to chain on undos, so it happens at the relevant time
e.g. I draw an annotation, then I add my custom undo action, then I draw another annotation. If I press undo once, the annotation is undrawn, press it again and my ...

I'm using V10.1.16.1, so it sounds like an upgrade may fix our problem.
Thanks for the help

Hi,

Thanks for replying.

I've created a simple example, and haven't entirely been able to replicate the issue. But it has helped me work out what's causing the issue, it's the UndoManager/UndoMonitor. I initialise them as below when the image has loaded, if I omit this, then the issue completely ...

Hi,

When I add a large image annotation (approx 1000px x 1250px) to the WpfAnnotationViewer, then save and reload the PDF, I get lag when adding a new annotations. It also seems to happen, when I add a lot of small annotations.
The lag is most obvious when adding a freehand pen annotation, there ...

Hi,

Is it possible to disable selection of specific annotations? I'm using text annotations as labels on top of ellipse annotations, I want the user to select the ellipse annotation and not the text annotation. At the moment they can't select the ellipse annotation as it selects the text annotation ...

Hi,
Is there a way to close a polygon when the user finishes building it, if it's not already closed?
Thanks,

Sent a project to support. Thanks, Alexander

My project involves showing and hiding the annotation viewer, and changing the focussed image when the viewer isn't visible. If I change the focused index and then show the viewer, the old image displays for a second before the new one is painted.

Is there a way to only draw the new image? I'm ...

I have now fixed it, moved the CanMove = false, etc, to the AnnotationBuildingFinished event. Now works as expected. Thanks for your help


private void annotationViewer_AnnotationBuildingFinished(object sender, AnnotationViewEventArgs e)
{
if (e.AnnotationView != null)
{
// Prevent the ...