Read data from txt files - using Linq-Entities? - text-files

Question

in my current ASP.net MVC 3.0 project i am stuck with a situation.
I have four .txt files each has approximatly 100k rows of records
These files will be replaced with new files on weekly bases.
I need to Query data from these four text files, I am not able to choose the best and efficient way to do this.
3 ways I could think
Convert these text files to XML on a weekly basis and query it with Linq-XML
Run a batch import weekly from txt to SQL Server and query using Linq-Entities
avoid all conversions and query directly from text files.
Can any one suggest a best way to deal with this situation.
update:
Url of the Text File
I should connect to this file with credentials.
once i connect successfully, I will have the text file as below with Pipeline as Deliminator
This is the text file
Now i have to look up for the field highlighted in yellow and get the data in that row.
Note: First two lines of the text file are headers of the File.

Answer 1

Well As i Found a way my self. Hope this will be useful for any who are interested to get this done.
string url = "https://myurl.com/folder/file.txt";
WebClient request = new WebClient();
request.Credentials = new NetworkCredential(ConfigurationManager.AppSettings["UserName"], ConfigurationManager.AppSettings["Password"]);
Stream s = request.OpenRead(url);
using (StreamReader strReader = new StreamReader(s))
{
for (int i = 0; i <= 1; i++)
strReader.ReadLine();
while (!strReader.EndOfStream)
{
var CurrentLine = strReader.ReadLine();
var count = CurrentLine.Split('|').Count();
if (count > 3 && CurrentLine.Split('|')[3].Equals("SearchString"))
{
#region Bind Data to Model
//var Line = CurrentLine.Split('|');
//CID.RecordType = Line[0];
//CID.ChangeIdentifier = Line[1];
//CID.CoverageID = Convert.ToInt32(Line[2]);
//CID.NationalDrugCode = Line[3];
//CID.DrugQualifier = Convert.ToInt32(Line[4]);
#endregion
break;
}
}
s.Close();
}
request.Dispose();