c#使用正則提取內容(例)

這個是<%=DB.shownewsfunction(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>這個是<%=DB.shownewsfunction1(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>

我要提取上面代碼中<%=DB.shownewsfunction(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>，2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0以及shownewsfunction這幾個內容，請問怎麼做

PS：可能內容中有<%=DB.shownewsfunction1(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>，<%=DB.shownewsfunction2(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>等不同的函數，我都要提取

string txt = "<%=DB.shownewsfunction1(2,0,1,14,0,20,200,100,0,1,0,1401,0,0,0,0,0,0)%>"; 
Regex regex = new Regex("<%=DB[.](?<fun>[\\w]+)\\((?<parms>[^\\)]+)\\)%>"); 
Match match = regex.Match(txt); 
if (match.Success) 
{ 
    Response.Write(match.Groups["fun"].Value); 
    Response.Write(match.Groups["parms"].Value); 
}