How to open a text file.

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.NET3.5

Currently I'm developing a "text editor".
How can I open a text file by double click on that file using my text editor.
I have tried using "open with" in windows but it only opens my text editor but not the content in text file.
Please give me a solution.

Posted 2-Jan-15 23:39pm

DualcoreMax

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3 solutions

Solution 3

Many ways:
http://msdn.microsoft.com/en-us/library/db5x7c0d(v=vs.110).aspx[^]

http://msdn.microsoft.com/en-us/library/ezwyzy7b.aspx[^]

http://www.homeandlearn.co.uk/csharp/csharp_s11p1.html[^]

Google is your best friend.

Posted 3-Jan-15 22:11pm

Yesii

Solution 1

When you use "open with" the path to the file is handed to you as a program argument - so if you are writing a Console app then you would get it via the args parameter to the Main method.
For a winforms app it is easiest to get them via the Environment:

C#

string[] args = Environment.GetCommandLineArgs();

Posted 2-Jan-15 23:45pm

OriginalGriff

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Richard MacCutchan · Accepted Answer · 2015-01-03T01:05:00

Solution 2

If you want your editor to be started whenever a text file is double clicked then you need to modify the file type in Windows Explorer. Alternatively you can add the parameters to the registry programmatically: see https://www.google.com/search?q=associate+file+type+with+program+c%23[^].

Posted 3-Jan-15 1:05am

Richard MacCutchan