The process cannot access the file xxx because it is being used by another process.

public PdfView(PdfViewModel viewModel)
        {
            InitializeComponent();
            this.DataContext = viewModel;
            string Exepath = System.Reflection.Assembly.GetExecutingAssembly().Location;
            string Directory = System.IO.Path.GetDirectoryName(Exepath);
            string Path =  Directory + "\\Payslip.pdf"
           webBrowser1.Navigate(new System.Uri(Path));
          

          
               if (System.IO.File.Exists(Path))
               {
                   File.Delete(Path);
               }
           }

}