how to pass file as parameter to your program wpf c#

Question

i create a very simple photo viewer using c# wpf i just need to open the image directly into my app like default windows photo viewer.

so i need to pass the image file as parameter to my app

i found This Question but it for winforms not wpf.

i hope that you could help me.

sorry for bad English.

Google File Association c#

Shaharyar
– Shaharyar

2014-11-10 14:17:52 +00:00
Commented Nov 10, 2014 at 14:17 — Shaharyar
– Shaharyar, Commented Nov 10, 2014 at 14:17

Rico Suter · Accepted Answer · 2014-11-10 14:23:01Z

4

To handle file open - triggered for example when double-clicking a file in Windows explorer - simply run the following C# code when the application has been started (e.g. in the main window's "Loaded" event):

var args = Environment.GetCommandLineArgs(); if (args.Length > 1) { var fileName = args[1]; if (File.Exists(fileName)) { var extension = Path.GetExtension(fileName); if (extension == ".MyDocumentExtension") { // TODO: Open file from fileName } } }

answered Nov 10, 2014 at 14:23

Rico Suter

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4 Comments

Ahmed Tarek Over a year ago

i have made an small edit . now it works . Thanks alot

Bolu Over a year ago

@AhmedTarek, this answer is about how to pass file as parameter to your program, which for me is different to your question: to open the image directly into my app like default windows photo viewer.. You may want to update your question.

Rico Suter Over a year ago

Yes, the question for me means "How to register a file association in Windows" but is actually "How to load file from application arguments"

Rico Suter Over a year ago

So, you changed it back to the original?

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