Ignoring accented letters in string comparison

Question

I need to compare 2 strings in C# and treat accented letters the same as non-accented letters. For example:

string s1 = \"hello\";
string s2 = \"héllo\";

s1         


        

Answer 1

I had to do something similar but with a StartsWith method. Here is a simple solution derived from @Serge - appTranslator.

Here is an extension method:

    public static bool StartsWith(this string str, string value, CultureInfo culture, CompareOptions options)
    {
        if (str.Length >= value.Length)
            return string.Compare(str.Substring(0, value.Length), value, culture, options) == 0;
        else
            return false;            
    }

And for one liners freaks ;)

    public static bool StartsWith(this string str, string value, CultureInfo culture, CompareOptions options)
    {
        return str.Length >= value.Length && string.Compare(str.Substring(0, value.Length), value, culture, options) == 0;
    }

Accent incensitive and case incensitive startsWith can be called like this

value.ToString().StartsWith(str, CultureInfo.InvariantCulture, CompareOptions.IgnoreNonSpace | CompareOptions.IgnoreCase)