C# find a specific line from a text file

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Hi! I'm quit new to C# and I resentle stucked with some code and I would be very pleased to get some help.

I want to be able to take out a line from a .txt file with just knowing what the text is on the line above. For exemple:

Name:
Olof
LastName:
Wiking
Country:
Sweden

And for exemple "Name:" will not stand on the same line all the time, it will variat from time to time.

I hope you understand my bad English.

best regards
Victor

Posted 28-Feb-13 1:31am

Victor Snow

Updated 26-Dec-17 1:00am

Uday P.Singh

v2

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Uday P.Singh 28-Feb-13 7:34am

why not put all your data in xml and retrieve from that

samadhan_kshirsagar 28-Feb-13 7:41am

its very easy......first of all check the file is present or not...then open the file.....and read the character from the file

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**Orcun Iyigun** · Answer 1 · 2013-02-28T01:55:00

Well I think you should take Uday's suggestion into consideration but if you must read it from text file:

C#

string line = string.Empty;
List<string> lines = new List<string>();
if(File.Exists(path))
{
    // Read the file and display it line by line.
    System.IO.StreamReader file = new System.IO.StreamReader("c:\\yourtextfilepathhere.txt");
    while((line = file.ReadLine()) != null)
    {
       lines.Add(line);
    }
    file.Close();
}

Do your manipulation when you have your list filled.

Good luck,
OI

Victor Snow · Answer 2 · 2013-02-28T23:12:00

Thank you for your quik answears.

The file looked like this:

XML

<TD width="20%" class="WG3">Name&nbsp;</TD>
        <TD width="20%" class="WG3">Olof&nbsp;</TD>

I wrote the code like this and its works perfect.

C#

<pre lang="cs">public string getMeetInfo(string fileContent , string searchMeetInfo)
{



    string searchString1 = ">" + searchMeetInfo + "&nbsp;</TD>";
    int IntRubrikStart = fileContent.IndexOf(searchString1);
    string searchString2 = ">";
    int intWantedNameStart = fileContent.IndexOf(searchString2, IntRubrikStart + searchString1.Length) + 1;
    string searchString3 = "&nbsp";
    int intWantedNameEnd = fileContent.IndexOf(searchString3, intWantedNameStart);
    string strOut = fileContent.Substring(intWantedNameStart, intWantedNameEnd - intWantedNameStart);

    return strOut;

Output:
Olof

C# find a specific line from a text file

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