Truncate string on whole words in .NET C#

Question

I am trying to truncate some long text in C#, but I don\'t want my string to be cut off part way through a word. Does anyone have a function that I can use to truncate my st

Answer 1

My contribution:

public static string TruncateAtWord(string text, int maxCharacters, string trailingStringIfTextCut = "…")
{
    if (text == null || (text = text.Trim()).Length <= maxCharacters) 
      return text;

    int trailLength = trailingStringIfTextCut.StartsWith("&") ? 1 
                                                              : trailingStringIfTextCut.Length; 
    maxCharacters = maxCharacters - trailLength >= 0 ? maxCharacters - trailLength 
                                                     : 0;
    int pos = text.LastIndexOf(" ", maxCharacters);
    if (pos >= 0)
        return text.Substring(0, pos) + trailingStringIfTextCut;

    return string.Empty;
}

This is what I use in my projects, with optional trailing. Text will never exceed the maxCharacters + trailing text length.