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PdfLoadedAnnotationCollection indexer

Hello,

In the PdfLoadedAnnotationCollection class there are 2 indexers, one based on the annotations' index number and the other on it's text. The comment of this text indexer suggests it's based on the name of the annotation. In my opinion it would make more sense to get an annotation based on it's name which is a GUID.

PdfLoadedAnnotationCollection.png

I want to be able to get an annotation based on it's name (guid), can you add a method to fetch the annotation based on it's name?


9 Replies
SV Surya Venkatesan Syncfusion Team March 18, 2022 07:50 PM UTC

Hi Wouter,


We recommend you to create the annotation with Guid name and then get the annotation using this API, https://help.syncfusion.com/cr/file-formats/Syncfusion.Pdf.Parsing.PdfLoadedAnnotationCollection.html#Syncfusion_Pdf_Parsing_PdfLoadedAnnotationCollection_Item_System_String_


Note: We have two APIs to get the annotation by using their index and their name.


Regards,

Surya V


WV Wouter van der Post replied to Surya Venkatesan March 21, 2022 11:58 AM UTC

Hello Surya,

The annotations are not created from code, but with the toolbar from the PdfViewer control.
Each annotation that is created this way already has a GUID name:



Where is the documentation of the other API that can be used to get annotations? The documentation you linked to is from the API that I'm using already. But as you can see in the screenshot below, there are 5 annotations. When I get the annotation with name 826af3a2-87e9-4c2d-a8c0-56f985a428f7 it returns the last annotation in the collection, not the one I requested:



SV Surya Venkatesan Syncfusion Team replied to Wouter van der Post March 22, 2022 07:08 PM UTC

Hi Wouter,


We have created a sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/WpfPDFViewer-1938665148 to get the annotation from the loaded annotation in the PDF document by using Guid name. Kindly refer to the below UG link for more details about getting and setting the annotation name,

https://help.syncfusion.com/wpf/pdf-viewer/working-with-annotations/working-with-annotations-programmatically#how-to-get-and-set-name-of-an-annotation


Kindly try the attached sample and let us know the result.


Regards,

Surya V


WV Wouter van der Post March 22, 2022 07:22 PM UTC

Hello Surya,

If I try to run the provided sample I get:


It starts without the package, but crashes as soon as the PDF is loaded.


SV Surya Venkatesan Syncfusion Team replied to Wouter van der Post March 23, 2022 05:58 PM UTC

Hi Wouter,


We suspect that the reported issue is due to a mismatch of assembly references. We request you to refer to the same product version of Syncfusion assemblies across different projects (dependent ones).


Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/WpfPDFViewerRevamp387119797


Kindly try the above sample and let us know if you have any concerns about this.


Regards,

Surya V



WV Wouter van der Post replied to Surya Venkatesan March 23, 2022 06:15 PM UTC

Hi Surya,

This sample compiles and runs without errors, thanks.


The sample selects the annotation in the viewer, it does not return the annotation object in code (it returns a bool, true if the annotation with the given name is found and selected). I'm looking for a way to get the object in code.

This is the reason I was using the indexer on the LoadedAnnotationCollection. The comments suggest that it returns the annotation based on it's name:


Can you share a sample that stores the annotation 


RB Rajavignesh BalaSankar Syncfusion Team March 24, 2022 04:23 PM UTC

Hi Wouter, 
 
We can reproduce the issue “Get annotation using name returns the last annotation in the collection” on our end. We have forwarded the issue to our development team for further analysis and will update further details on March 28, 2022. 
 
Regards, 
Raja Vignesh.  


DD Divya Dhayalan Syncfusion Team March 28, 2022 11:22 AM UTC

Hi Wouter, 
 
We have confirmed that the issue with “Invalid annotation is returned when trying get loaded annotation using its name” is a defect. The fix for this issue will be available in our weekly NuGet release on April 5, 2022. 
 
Kindly use the below feedback link to track the status of the reported bug, 
 
Regards, 
Divya 


DD Divya Dhayalan Syncfusion Team April 5, 2022 05:01 PM UTC

Hi Wouter,


We have fixed the reported issue “Invalid annotation is returned when trying get loaded annotation using its name”. Since our 2022 volume 1 release rolled out yesterday, we do not have weekly NuGet release today. However, we have created a patch for this fix that can be downloaded from the following location. We will include the fix in our upcoming weekly NuGet release.


Recommended approach - exe will perform automatic configuration

Please find the patch setup from the below location: https://syncfusion.com/Installs/support/patch/20.1.0.47/1418186/F173683/SyncfusionPatch_20.1.0.47_1418186_4052022121019400_F173683.exe


Advanced approach – use only if you have specific needs and can directly replace existing assemblies for your build environment

Please find the patch assemblies alone from below location: https://syncfusion.com/Installs/support/patch/20.1.0.47/1418186/F173683/SyncfusionPatch_20.1.0.47_1418186_4052022121019400_F173683.zip

NuGet: https://syncfusion.com/Installs/support/patch/20.1.0.47/1418186/F173683/SyncfusionNuget_20.1.0.47_1418186_4052022121019400_F173683.zip


Assembly Version: 20.1.0.47

Installation Directions:

This patch should replace the files “Syncfusion.Pdf.Base.dll, Syncfusion.PdfViewer.WPF.dll” under the following folder.

$system drive: \Files\Syncfusion\Essential Studio\$Version # \precompiledassemblies\$Version#\4.6

Eg : $system drive:\Program Files\Syncfusion\Essential Studio\9.3.0.61\precompiledassemblies\9.3.0.61\4.0

To automatically run the Assembly Manager, please check the Run assembly manager checkbox option while installing the patch. If this option is unchecked, the patch will replace the assemblies in precompiled assemblies’ folder only. Then, you will have to manually copy and paste them to the preferred location, or you will have to run the Syncfusion Assembly Manager application (available from the Syncfusion Dashboard, installed as a shortcut in the Application menu) to re-install assemblies.


Note:

You can change how you receive bug fixes by navigating to the following link and updating your preferences.

https://www.syncfusion.com/support/directtrac/patches


Disclaimer: Please note that we have created this patch for version 20.1.0.47 specifically to resolve the following issue reported in this Forum. 173683


If you have received other patches for the same version for other products, please apply all patches in the order received. This fix will be included in our 2022 Volume 1 SP-1 release which will be available in May 2022.


Please find the feedback link below,

https://www.syncfusion.com/feedback/33715/invalid-annotation-is-returned-when-trying-get-loaded-annotation-using-its-name


Regards,

Divya


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