Question

I have a string:

string hmtl = "<DIV><B> xpto </B></DIV>

and need to remove the tags of <div> and </DIV>. With a result of : <B> xpto </B>

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Just <DIV> and </DIV> without the removal of a lot of html tags, but save the <B> xpto </B>.

Answer 1

Use Regex:

var result = Regex.Replace(html, @"</?DIV>", "");

UPDATED

as you mentioned, by this code, regex removes all tages else B

var hmtl = "<DIV><B> xpto </B></DIV>";
var remainTag = "B";
var pattern = String.Format("(</?(?!{0})[^<>]*(?<!{0})>)", remainTag );
var result =  Regex.Replace(hmtl , pattern, "");