PDF Viewer zoom troubles

Question

I am trying to zoom using code.In the following cases GetZoomPercentageAsync returns 0 every time but should return a non 0 value.How does one fit to width or fit to page? In the following examples PdfViewer.ZoomMode = ZoomMode.FitToWidth; and PdfViewer.ZoomMode = ZoomMode.FitToPage;do nothing but ZoomAzync does work.Snippetpublic async void ZoomPercent(int value)
{
    int zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
    PdfViewer.ZoomMode = ZoomMode.Default;
    await PdfViewer.ZoomAsync(value);
    zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
}
 
public async void ZoomFitWidth()
{
    int zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
    PdfViewer.ZoomMode = ZoomMode.FitToWidth;
    zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
}
 
public async void ZoomFitPage()
{
    int zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
    PdfViewer.ZoomMode = ZoomMode.FitToPage;
    zoomFeedback = await PdfViewer.GetZoomPercentageAsync();
}Syncfusion.Blazor.PdfViewerServer.Windows20.1.0.51

Vasugi Sivajothi · Accepted Answer

Hi Dennis,We were able to reproduce the reported issue “GetZoomPercentageAsync returns 0” with the provided details. We will analyze further on this and update you
with more details on May 5, 2022. However, you can get the zoom value using the
ZoomValue property. And you can zoom into the fiToWidth and fitToPage
mode programmatically using the FitToWidthAsync() and FitToPageAsync() method.
Please refer to the below code snippet and sample.Code Snippet:

int zoomValue = PdfViewer.ZoomValue;
   
  await PdfViewer.FitToWidthAsync();
  await PdfViewer.FitToPageAsync();

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/BlazorServer-195769424Kindly try this and let us know if this helps
you.Regards,Vasugi.

Dennis M · Answer

Thanks Vasugi that helps. The methods you mentioned work fine.Regards,Dennis

Vasugi Sivajothi · Answer

Hi Dennis,Thank you for the update. As we mentioned earlier,
we were able to reproduce
the reported issue “GetZoomPercentageAsync returns 0” with the provided
details. We will analyze further on this and update you with more details on
May 5, 2022. Regards,Vasugi.

Vasugi Sivajothi · Answer

Hi Dennis,We have confirmed that the reported issue is a
defect and logged the defect report for the same. The fix for this issue will
be included in our upcoming weekly NuGet release on May 25, 2022. You can
track the status using the below feedback link.https://www.syncfusion.com/feedback/34662/unable-to-get-the-proper-zoom-value-using-the-getzoompercentage-methodRegards,Vasugi.

Shamini Kiruba Sobers · Answer

Hi Dennis,Sorry for the
inconvenience. The fix was not included in our latest weekly NuGet release.
However, we will include the fix in our upcoming weekly NuGet release without
further delay on June 1, 2022.Regards,Shamini

Shamini Kiruba Sobers · Answer

Hi Dennis,We have fixed the reported issue and
the fix for the reported issue was included in our latest weekly release
v20.1.0.58. Kindly upgrade to that version to get the issue resolved.    Packages:

Service side package

ASP.NET Core
  :      
  https://www.nuget.org/packages/Syncfusion.EJ2.PdfViewer.AspNet.Core.Windows/ 
  https://www.nuget.org/packages/Syncfusion.EJ2.PdfViewer.AspNet.Core.Linux/       
  https://www.nuget.org/packages/Syncfusion.EJ2.PdfViewer.AspNet.Core.OSX/      
         
  ASP.NET
  MVC:      
  https://www.nuget.org/packages/Syncfusion.EJ2.PdfViewer.AspNet.Mvc5/      
  https://www.nuget.org/packages/Syncfusion.EJ2.PdfViewer.AspNet.Mvc4/

CDN: http://cdn.syncfusion.com/ej2/20.1.58/dist/ej2.min.js   https://cdn.syncfusion.com/ej2/20.1.58/material.cssRegards,Shamini