C#•2y ago

✅ how do i trim this string

i have this long string for e.g string word = "iahdsoihdaiiadi1124I ID:whatever sidaohiow12" ; is it possible to get only word that comes after Id: . C#

6 Replies

Servator•2y ago

        var word = "iahdsoihdaiiadi1124I ID:whatever sidaohiow12";
        
        var match = Regex.Match(word, @"ID:(.*)");
        
        var id = match.Groups[1].Value;
        
        Console.WriteLine(id);

        var word = "iahdsoihdaiiadi1124I ID:whatever sidaohiow12";
        
        var match = Regex.Match(word, @"ID:(.*)");
        
        var id = match.Groups[1].Value;
        
        Console.WriteLine(id);

Anton•2y ago

another way would be

int idIndex = str.IndexOf("ID:");
int idStartIndex = idIndex + "ID:".Length;
int spaceIndex = str.IndexOf(" ", idStartIndex);
string id = str[idStartIndex .. spaceIndex];

int idIndex = str.IndexOf("ID:");
int idStartIndex = idIndex + "ID:".Length;
int spaceIndex = str.IndexOf(" ", idStartIndex);
string id = str[idStartIndex .. spaceIndex];

codingrookieOP•2y ago

whats supposed to be in them 2 dots this got me every word that comes after id , i need only the word after id:

vdvman1•2y ago

Nothing goes "in them 2 dots", those 2 dots are actually part of the code, they are how you specify a range in C# Specifically str[idStartIndex..spaceIndex] gives you the substring from idStartIndex (inclusive) to spaceIndex (exclusive)

HimmDawg•2y ago

Yeah, your regex is almost correct. .* will match everything after ID:. You could add a space after the capture group and then do .*? instead Depending on the characters that can be in that id, you could also use ([\w\d]+) instead of (.*?) . This way you don't need to match the space afterwards

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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✅ how do i trim this string