Replace text with RegEx (ignoring case) but keep case

[ralphtrent]

Hello
I am using RegEx to search for text in a string. Since I need the search to be case-insentive this looked to be my only option. My main purpose for the replacement is to highlight the backround of a text (based on a search). This works well, but the text gets replaced with the incorrect case. Here is my code

string sWorkNotes = "Ralph and Pete work together"
string[] sSearchPhrase = new string[2]{"ralph","pete"};
foreach(string s in sSearchPhrase)
{
	sWorkNotes = System.Text.RegularExpressions.Regex.Replace(sWorkNotes, s, "<span style='background-color:yellow;'>" + s + "</span>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
}

this is the output

[highlight]ralph[/highlight] and [highlight]pete[/highlight] work together

what I need is this

[highlight]Ralph[/highlight] and [highlight]Pete[/highlight] work together

I need to keep the same case as the origional string. The reason it is getting lower cased is because the text is lower cased in my array.

string[] sSearchPhrase = new string[2]{"ralph","pete"};

Any ideas on how i can do this?

 

[ralphtrent]

I got this working. Here is my code:

//Calling Code
.
.
.
sDescription = lblDescription.Text;
sDescription.Text = HighlightText(sDescription,"My Search Phrase");
lblDescription.Text = sDescription
.
.
.

private string HighlighText(string Source, string SearchText)
{
	return Regex.Replace(Source,SearchText,new MatchEvaluator(ReplaceKeyWords), RegexOptions.IgnoreCase);
}

public string ReplaceKeyWords(Match m) 
{
	return "<span style='background-color:yellow;'>" + m.Value + "</span>"; 
}