CODEWITHSUNDEEP
c#.netvisual-studioconsole-application
Emmily
Emmily

Reputation: 103

Drag and drop file onto console application

I am trying to create a Console Application in Visual Studio using C# to be able to drag and drop a .txt file onto the .exe file and have it find and replace within that file. Eventually I also want it to then save-as with _unwrapped at the end of the original file-name. I am very new to C# and this is what I have so far. It works on the test file I have placed in the debug folder. How do I make this work with a dragged file? I tried a few things I found on google but they did not work and I did not understand them. Thank you!!

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            string text = File.ReadAllText("test.txt");
            text = text.Replace("~", "~\r\n");
            File.WriteAllText("test.txt", text);

        }
    }
}

Upvotes: 4

Views: 10343

Answers (1)

adjan
adjan

Reputation: 13684

When you drag a file on an .exe in Windows, the .exe will be executed with the file's path as its argument. You only have to extract the argument from the args parameter:

 static void Main(string[] args)
 {
    if (args.Length == 0)
       return; // return if no file was dragged onto exe
    string text = File.ReadAllText(args[0]);
    text = text.Replace("~", "~\r\n");
    string path = Path.GetDirectoryName(args[0]) 
       + Path.DirectorySeparatorChar 
       + Path.GetFileNameWithoutExtension(args[0]) 
       + "_unwrapped" + Path.GetExtension(args[0]);
    File.WriteAllText(path, text);

 }

Upvotes: 13

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