CODEWITHSUNDEEP
c#asp.netregexstring
Tassisto
Tassisto

Reputation: 10365

How to remove a defined part of a string?

I have this string: "NT-DOM-NV\MTA" How can I delete the first part: "NT-DOM-NV" To have this as result: "MTA"

Upvotes: 38

Views: 156947

Answers (8)

Fun Mun Pieng
Fun Mun Pieng

Reputation: 6911

you can use this code:

str = str.Substring (10); // to remove the first 10 characters.
str = str.Remove (0, 10); // to remove the first 10 characters
str = str.Replace ("NT-DOM-NV\\", ""); // to replace the specific text with blank

//  to delete anything before \

int i = str.IndexOf('\\');
if (i >= 0) str = str.SubString(i+1);

Upvotes: 67

Paolo Mazzoni
Paolo Mazzoni

Reputation: 93

Regex.Replace(@"NT-DOM-NV\MTA", @"(?:[^\\]+\\)?([^\\]+)", "$1")

try it here.

Upvotes: 1

Jacob
Jacob

Reputation: 3698

You can use this extension method:

public static String RemoveStart(this string s, string text)
{
    return s.Substring(s.IndexOf(s) + text.Length, s.Length - text.Length);
}

In your case, you can use it as follows:

string source = "NT-DOM-NV\MTA";
string result = source.RemoveStart("NT-DOM-NV\"); // result = "MTA"

Note: Do not use TrimStart method as it might trims one or more characters further (see here).

Upvotes: 2

Vercas
Vercas

Reputation: 9141

string.TrimStart(what_to_cut); // Will remove the what_to_cut from the string as long as the string starts with it.

"asdasdfghj".TrimStart("asd" ); will result in "fghj".
"qwertyuiop".TrimStart("qwerty"); will result in "uiop". 

public static System.String CutStart(this System.String s, System.String what)
{
    if (s.StartsWith(what))
        return s.Substring(what.Length);
    else
        return s;
}

"asdasdfghj".CutStart("asd" ); will now result in "asdfghj".
"qwertyuiop".CutStart("qwerty"); will still result in "uiop".

Upvotes: 11

Mikael Östberg
Mikael Östberg

Reputation: 17176

Given that "\" always appear in the string

var s = @"NT-DOM-NV\MTA";
var r = s.Substring(s.IndexOf(@"\") + 1);
// r now contains "MTA"

Upvotes: 12

Øyvind Bråthen
Øyvind Bråthen

Reputation: 60744

Try

string string1 = @"NT-DOM-NV\MTA";
string string2 = @"NT-DOM-NV\";

string result = string1.Replace( string2, "" );

Upvotes: 4

agradl
agradl

Reputation: 3536

 string s = @"NT-DOM-NV\MTA";
 s = s.Substring(10,3);

Upvotes: -1

Daniel Hilgarth
Daniel Hilgarth

Reputation: 174457

If there is always only one backslash, use this:

string result = yourString.Split('\\').Skip(1).FirstOrDefault();

If there can be multiple and you only want to have the last part, use this:

string result = yourString.SubString(yourString.LastIndexOf('\\') + 1);

Upvotes: 2

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