Getting a line of text after a specific line in C #

Question

I am reading the contents of a file that looks something like this.

[1]
Message=my string here
EffDate=1/1/1995
DeactDate= 
Modified= 
Note=

[2]
Message=my other string here
EffDate=1/1/1995
DeactDate= 
Modified= 
Note=

I want to get the line after Message=, but only until the end of the line. I don't need dates, notes, or anything.

I was hoping to put both messages in an array of strings or something like that. Is there any way to do this?

Any help is appreciated.

Answer 1

This is the working code you need:

var d = File.ReadAllLines(filePath);
            var t = d.Where(g => g.Contains("Message"));
            string[] splited;
            foreach (var item in t)
            {
                splited = item.Split(new string[] { "Message=" }, StringSplitOptions.None);
                Console.WriteLine(splited[1]);
            }

Let me know if you have any confusion.

Answer 2

You can use followin approach.

• Read your file in the best way using ReadAllLines method, see link

• After reading this, you will get a collection of strings, one item for each row.

• ,
• , String.Split "=" 1 .

, .

Answer 3

-

string[] getMessages(string file) {
    List<string> messages = new List<string>();

    string[] lines = file.ReadAllLines();       /* read the lines */
    foreach(string line in lines) {
        string[] parts = line.Split('=');
        string contentPart = String.Join("=", parts.Skip(1).ToArray();
        if(parts[0]=="Message")
            messages.Add(contentPart);
    }

    return messages.ToArray();
}

, . , .

, Split : , Message, StartsWith Contains.

Answer 4

, , Message, = .

string strFilePath = @"D:\Maraj\Work\Ajax.txt";
FileStream objFS = new FileStream(strFilePath, FileMode.Open);
List<string> list = new List<string>();
using (StreamReader Sr = new StreamReader(objFS))
  {
    while (Sr.ReadLine() != null)
    {
    string line = Sr.ReadLine();
    if(line.Contains("Message=")
      {
        list.Add(line .Split('=')[1]);
      }
    }
     objFS.Close();
  }

Answer 5

• .
• , Message = .

• If yes, get the message using the Substring () method

      var messages = File.ReadAllLines("M:\\m.txt");
      List<string> result = new List<string>();
      foreach (var msg in messages)
      {
          var key = "Message=";
          if (msg.StartsWith(key))
              result.Add(msg.Substring(msg.IndexOf(key) + key.Length));
      }
  

Answer 6

You just need a simple loop for:

string[] messages = File.ReadAllLines("data.txt"); //read all lines

for (int i = 1; i < messages.Length; i = i + 7) //just get the line containing "Message"
{
    string message = messages[i].Split('=')[1];
    //now you have the message, save it where ever you want.
}

Answer 7

That should be enough:

string[] messages = File.ReadLines("fileName.txt")
                        .Where(line => line.StartsWith("Message="))
                        .Select(line => line.Split(new char[] { '=' }, 2)[1])
                        .ToArray();