如何从dotnet在Windows 10上正确启动Photos应用

Question

From my WinForms application I can open documents by using this code :

using (Process process = new Process())
{
    ProcessStartInfo startInfo = new ProcessStartInfo();
    process.StartInfo = startInfo;
    startInfo.FileName = fileName;
    process.Start();
}

Now if the variable fileName contains a full path to a .jpg file then in windows 10 it opens with some app called Photos
This works, but it has one problem I dont understand.

When I open the picture in windows explorer by doubleclicking on the picture, the app Photos opens and shows the picture. It also has navigation buttons on the left/right of the image. Using these buttons I can see the prior/next picture in this folder.
If I choose SlideShow it will show all pictures in this folder

When I open the picture using the code above, the same app Photos opens and shows the picture, but this time without the navigating buttons on the left/right of the image.
If I choose SlideShow it will show only this picture while there are others in this folder.

So my question is, how can I get these navigating buttons back ?
Also, there can be other file types then .jpg in the variable fileName .
I need a general method that will open each file with the default association set in windows.

In windows 7 and 8 this was never a problem, the navigation buttons always appeared. It only behave this way in windows 10

EDIT
If I have to use other code to open pictures than for other documents, I am willing to do that.
I can always check the extension of the file first

Answer 1

You probably also need to set the working directory of the new process to be the folder that the image is located in.

It would look something like this

ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName = fileName;
startInfo.WorkingDirectory = Path.GetDirectoryName(fileName);

process.StartInfo = startInfo;
process.Start();