Check whether a link to a file is a txt

Question

I have a varaible UrlList which holds the Directory of which is supposed to be entered in a Text box, what I want though, is to check whether the given Directory file is a text file or not, so the User gets prompted to either Cancel his Actions or give in a correct file.

Code Snippet:

public static string UrlList = @"C:\Users\gbbb\Desktop\Url.txt";
private string[] _UrlRows;

and this is the method i sorta started, and then realised i Need help for

private void LoadUrls()
{   
    if (UrlList == System.TEXT-FILE)
        _Urlrows = System.IO.File.ReadAllLines(@UrlList);
}

Answer 1

you can use Path.GetExtension method

if(System.IO.Path.GetExtension(path).Equals(".txt",StringComparison.OrdinalIgnoreCase))
{

}

Answer 2

If I understand you clearly, you just need to use Path.GetExtension method.

Returns the extension of the specified path string.

string ext = Path.GetExtension(@"C:\Users\gbbb\Desktop\Url.txt");

if(ext == ".txt")
{
   string[] readText = File.ReadAllLines(@"C:\Users\gbbb\Desktop\Url.txt");
}