Code Snippet - C#: Prüfen ob ein String eine gültige Zahl ist / ein gültiger Alpha-numerischer String
Published on 08.06.2007 - 09:52 h in Code Snippet, .NET / Mono, Programming
public bool IsAlphaNumericString(string strAlphanum) {
System.Text.RegularExpressions.Regex pattern = new System.Text.RegularExpressions.Regex(@"^[A-Za-z0-9]+$");
return pattern.IsMatch(strAlphanum.Trim());
}
public bool IsNumeric(string strAlphanum) {
System.Text.RegularExpressions.Regex pattern = new System.Text.RegularExpressions.Regex(@"^[0-9]+$");
return pattern.IsMatch(strAlphanum.Trim());
}
System.Text.RegularExpressions.Regex pattern = new System.Text.RegularExpressions.Regex(@"^[A-Za-z0-9]+$");
return pattern.IsMatch(strAlphanum.Trim());
}
public bool IsNumeric(string strAlphanum) {
System.Text.RegularExpressions.Regex pattern = new System.Text.RegularExpressions.Regex(@"^[0-9]+$");
return pattern.IsMatch(strAlphanum.Trim());
}
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