Handwritten signature on the last page

[Aleksandr Sapozhnikov]

Hello.

When trying to add a signature on the last page of the opened document, an exception is thrown, the application crashes.

This problem occurs when adding a signature on the last page as the current page when using AddHandwrittenSignature (handwrittenSignature), as well as when adding a signature when using the pageNumber field with the last page number in the AddHandwrittenSignature (handwrittenSignature, pageNumber).

Exception details:

{System.IndexOutOfRangeException: Index was outside the bounds of the array.

  at Syncfusion.SfPdfViewer.XForms.iOS.ScrollViewEx.AddHandwrittenSignature (Syncfusion.SfPdfViewer.XForms.HandwrittenSignature signature, System.Int32 pageNumber) [0x00033] in <934dede892dd462ebe88e138e695028e>:0 

  at Syncfusion.SfPdfViewer.XForms.iOS.PdfViewerDependencyService.AddHandwrittenSignature (Syncfusion.SfPdfViewer.XForms.HandwrittenSignature signature, System.Int32 pageNumber, System.Object nativeObject) [0x00003] in <934dede892dd462ebe88e138e695028e>:0 

  at Syncfusion.SfPdfViewer.XForms.SfPdfViewer.AddHandwrittenSignature (Syncfusion.SfPdfViewer.XForms.HandwrittenSignature signature, System.Int32 pageNumber) [0x00033] in :0 

  at AppConverter.ViewModels.SignPdfViewModel.SignatureAdded (System.Object sender, Syncfusion.SfPdfViewer.XForms.InkAddedEventArgs args) [0x000e4] in ...ViewModel.cs:119 

  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__7_0 (System.Object state) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1021 

  at Foundation.NSAsyncSynchronizationContextDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.20.2.2/src/Xamarin.iOS/Foundation/NSAction.cs:178 

--- End of stack trace from previous location where exception was thrown ---

  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)

  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.20.2.2/src/Xamarin.iOS/UIKit/UIApplication.cs:86 

  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/13.20.2.2/src/Xamarin.iOS/UIKit/UIApplication.cs:65 

  at ....iOS.Application.Main (System.String[] args) [0x00001] in ...iOS\Main.cs:12 }

[Ashokkumar Viswanathan]

Hi Aleksandr, 

 

Thank you for contacting Syncfusion support, 

 

We were able to reproduce the issue, “Application crashes with index out of range exception while adding HandwrittenSignature”. Currently, we are validating the issue and we will update further details on September 14^th , 2020. 

 

Regards, 

Ashok Kumar Viswanathan. 

[Ashokkumar Viswanathan]

Hi Aleksandr, 

  

We have confirmed that the issue “Application crashes with index out of range exception while adding Handwritten Signature in Xamarin.Forms iOS platform” is a defect and logged a defect report for this issue. The patch for this issue will be delivered on October 5, 2020. 

 

Please find the feedback link below, 

https://www.syncfusion.com/feedback/17886/ios-application-crashes-with-index-out-of-range-exception-while-adding-handwritten 

  

Regards, 

Ashok Kumar Viswanathan. 

[Satheesh Palanisamy]

Hi Aleksandr,    

    

We have resolved the issue, “Application crashes with index out of range exception while adding Handwritten Signature in Xamarin.Forms iOS platform” and the custom NuGet for the same can be downloaded from the following link        

     

Custom NuGet :  

https://www.syncfusion.com/downloads/support/directtrac/general/ze/CustomNuget1393230079               

 

Disclaimer:   
Please note that we have created this NuGet for version 18.3.0.35 specifically to resolve the following issue(s) reported in the above mentioned Forum. 157698 

   

Note : Kindly follow the steps to clear the NuGet cache and then install patched NuGet to get the issue resolved.   

    

https://www.syncfusion.com/kb/6987/how-to-clear-nuget-cache     

       

This fix will be included in our 2020 Volume 3  Service pack release which will be available in the month of November 2020.    

    

Regards,    

Satheesh Palanisamy.