CODEWITHSUNDEEP
c#windowswinforms
Jamiro14
Jamiro14

Reputation: 213

Open file and load it

I'm creating a program that uses a specific file type and i've associated that file type with the program, but when i click the file, it only starts the program, but it doesn't load the file I clicked. How can I make my program load the file?

Upvotes: 2

Views: 266

Answers (3)

Christiaan Nieuwlaat
Christiaan Nieuwlaat

Reputation: 1359

You can use the static void Main(string[] args) to get the filename.

I'd do something like this:

somewhere in your code you should have a string variable where to store the retrieved filename private string filename;

static void Main(string[] args) {
  // first check if there are arguments
  if (args.length > 0)
  {
     // check if the filename has the right extension
     if (args[0].EndsWith(".ext"))
     {
        // check for existence
        if (System.IO.File.Exists(args[0]))
        {
           // it exists.. so store the filename in the previously defined variable
           filename = args[0];
        }
     }
  }
}

This way you can do one kind of logic when the filename variable has content and another kind of logic when it hasn't.

Hope you can use this.

Upvotes: 1

chemicalNova
chemicalNova

Reputation: 841

When you open a file you've associated with your application, the file path is passed into your program as a command line argument. You can load the file yourself like so:

string fileName = Environment.GetCommandLineArgs()[0];

Upvotes: 3

Marco
Marco

Reputation: 57573

In your app you have to use Main(string[] args) and get from args params passed to your application.
Here it is an example:

static void Main(string[] args)
{
    if (args.Length == 0) return;
    string text = File.ReadAllText(args[0]);
}

Upvotes: 2

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