demo from foxit embedded sdk for Winrt 8.1 won't render pdf

[bachtiarromzan]

please help me, i have used foxit embedded sdk for winrt 8.1, and i have following the steps to instal and steps to running the demo in pdf tutorial, but when i try to running the every demo (demo_view, demo_annotation, etc) after chosen pdf file, the demo won't show the pdf and the pdf field just blank like screen shoot in bellow , why the demo won't show pdf on the field,
please help me...

[huy_tran]

Dear Bachtiarromzan,

Make sure you apply the unlock code.

1. Make sure you are using the correct library with the correct sn.txt file that it is package with

1. Open Visual Studio 2012/2013
2. Go to Tools ->Extensions and Update
3. Select Foxit Embedded PDF SDK -> Click “Uninstall”
4. Open the download package and locate the FoxitSDK.vsix
5. Run FoxitSDK.vsix and install the extension
6. In the download package go to Documentation and locate sn.txt then follow instructions #2 from below.

1. If the demo is not displaying a PDF, the most common issue customer face is to not correctly replace the sn and unlock code.

1. Please go to Samples\CSharp\demos\demo_view\demo_view\App.xaml. cs
   1. Locate “Base.UnlockLibrary("XXXXSNXXX", "XXXXXXXXXXXXXXXXXKEYXXXXXXXXXXXXXXXXXXXX");”
2. Go to Documentation\sn.txt and copy the sn and key values and replace the values with what you find in the sn.txt file.

Note: This is example is only for the demo_view. Each demo must do the same thing.

Sincerely,
Huy