CODEWITHSUNDEEP
c#
jjw
jjw

Reputation: 294

Is there a function to check whether a path is included in the path?

I would like to check the path.

For example, I want a method that has functionality below.

Two path string is "C:\Document\test", "C:Document\test2".

And If "C:\Document\test" is compared with "C:Document\test2" then the result is expected false because "C:\Document\test" is not included in "C:Document\test2".

Another example is

Two path string is "C:\Document\test", "C:Document\test\test2".

If "C:\Document\test" is compared with "C:Document\test\test2" then the resulut is expected true because "C:\Document\test" is included in "C:Document\test\test2".

Is there a method that has functionality the above in C#?

Thanks for reading.

Upvotes: 0

Views: 146

Answers (2)

Anu Viswan
Anu Viswan

Reputation: 18155

You could use string comparison for the purpose. For example,

public static bool ComparePath(string path1,string path2)
{   
    return NormalizePath(path2).Contains(NormalizePath(path1));
}

public static string NormalizePath(string path)
{
    if(path.Trim().Last().Equals(Path.DirectorySeparatorChar))
        return path.Trim().ToLower();


    return $"{path.Trim()}{Path.DirectorySeparatorChar}".ToLower();
}

You need to include the DirectorySeparatorChar to mark end of path.

Example,

ComparePath(@"C:\Document\test",@"C:\Document\test\2");  // True
ComparePath(@"C:\Document\test",@"C:\Document\test2");   // False

Upvotes: 1

SteveZ
SteveZ

Reputation: 185

I think the PathUtil.IsDescendant(String, String) Method is exactly what you Need. You find the documentation here.

var res = PathUtil.IsDescendant("C:\\Test\\Test1\\", "C:\\Test\\Test1\\Test2.txt");
res = PathUtil.IsDescendant("C:\\Test\\Test", "C:\\Test\\Test2");

The first will return trueand the second will return false

Upvotes: 1

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