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Replacing the line in the string with file contents

Posted on 2014-01-08
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Last Modified: 2014-01-18
Hi,
I am trying to read a string(it has HTML content) in the .Net application.
 Whenever <!--#include file= is found (Ex: <!--#include file="../search/SearchInfo.aspx" -->) I will read the SearchInfo.aspx page contents and  replace  this line(<!--#include file="../search/SearchInfo.aspx") with the actual SearchInfo page contents.I have 5 to 6  <!--#include file in the string.

Please let me know the good and easy way to do this.

Thanks
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Question by:KavyaVS
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2 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 39767553
this code should do:
string data = string.Empty;
            using (System.IO.StreamReader sr = new StreamReader("c:\\temp\\yourfile.txt"))
            {
                data = sr.ReadToEnd();
                sr.Close();
            }

            Regex r = new Regex("[<][!][-][-]\\s*[#]include file[=]\"(.+)\"\\s*[-][-][>]");

            MatchCollection c = r.Matches(data);
            foreach (Match m in c)
            {
                string fc = m.Value;
                string fn = m.Groups[1].Value;

                try
                {
                    using (System.IO.StreamReader sr = new StreamReader(fn))
                    {
                        fc = sr.ReadToEnd();
                        sr.Close();
                    }
                }
                catch {}

                data = data.Replace(m.Value, fc);
            }

            using (System.IO.StreamWriter sw = new StreamWriter("c:\\temp\\resultfile.txt"))
            {
                sw.Write(data);
                sw.Close();
            }

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Author Closing Comment

by:KavyaVS
ID: 39791303
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