CODEWITHSUNDEEP
c#stringsubstring
Huma Ali
Huma Ali

Reputation: 1809

Remove Substring from string

I have a string:

string valueA = "Free Chips (Save $43 / month)";

Now I want to retrieve string that occurs before (Save, i.e I want Free Chips. How can I achieve this?

string valueB = valueA.Replace();

Upvotes: 0

Views: 166

Answers (4)

pwas
pwas

Reputation: 3373

One of the ways is regex (of course for such a simple string it could be an little overhead):

var regex = new Regex("(.*)\(Save");
// (.*) - match anything and group it
// \(Save - match "(Save" literally
var regexMatch = regex.Match(valueA);
if (regexMatch.Success)
{
    var valueB = regex.Match(valueA).Groups[1].Value;
    //and so on
}

Upvotes: 0

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 476557

You can use a regex with positive lookahead:

.*?(?=\s*\(Save)

The full code:

using System.Text.RegularExpressions;

string query = "Free Chips (Save $43 / month)";

// ...

Regex r = new Regex(@".*?(?=\s*\(Save)");

Match m = r.Match(query);
if(m.Success) {
    string result = m.ToString(); // result = "Free Chips"
}

m.Success is false if "(Save" is not part of the string.

Upvotes: 1

KiteUp
KiteUp

Reputation: 328

string valueA = "Free Chips (Save $43 / month)";
string valueB = valueA.Substring(0, valueA.IndexOf(" (Save"));

Upvotes: 0

Ofir Winegarten
Ofir Winegarten

Reputation: 9365

Use Substring and IndexOf

string valueB = valueA.Substring(0, valueA.IndexOf("(Save", StringComparison.Ordinal))
                      .Trim();

Upvotes: 1

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