PDFOffice_Windows_exe/PDF Office/ViewModels/PropertyPanel/AnnotPanel/SignatureAnnotPropertyViewModel.cs

using ComPDFKitViewer.PdfViewer;
using PDF_Office.Model;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PDF_Office.ViewModels.PropertyPanel.AnnotPanel
{
    class SignatureAnnotPropertyViewModel : BindableBase, INavigationAware
    {
        private CPDFViewer PDFViewer;

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {
            return;
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            navigationContext.Parameters.TryGetValue<CPDFViewer>(ParameterNames.PDFViewer, out PDFViewer);
            if (PDFViewer == null)
            {
                return;
            }
        }
    }
}