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Hi,
I want to read a particular word from a text file. For example AAA.txt is my text file and it contains words as shown below
Name   := Dell
Server := Dataserver
User   := Mike

The data i want is Dataserver. How do I get it?
Posted
Updated 2-Sep-13 3:49am
v2

will Help you

string strvalue = string.Empty;
using (System.IO.StringReader sr = new StringReader("c:\aaa.txt"))
{
string[] strdata = sr.ReadToEnd().Split(new char[] { '\n' });
foreach (string item in strdata)
{
if (item.Contains("Server :="))
{
strvalue = item.Replace("Server :=","");
Break;

}
}
   
v3
Do you really use
Key :=Value
or rather
key=value
? In the last case, you can use the Windows API for ini-files.
Otherwise, you have to read the file line by line and parse each line with a regex.
   
Use the below code to get the specified string in the file.txt
After that you remove the strings upto "=";

string regexMatchString= "Server :=Dataserver";
string text = System.IO.File.ReadAllText(@"C:\Users\Public\TestFolder\Textfile.txt");
string matchedString = Regex.Match(text, regexMatchStrig).ToString();
   
v2
Comments
Rahul Krishnan R 2-Sep-13 8:29am
   
I need the text which will be in the place of Dataserver. Dataserver is just an example. It can be any text or numbers(IP address).
Literally, I need the value after "Server :=" which can be string or numbers.
Thomas ktg 2-Sep-13 8:33am
   
Is "Server :=" going to be static or not?
Hi,
Please find the solution of the same.
Note: I have used the 'Server' as keyword to find the DataServer value.

<blockquote class="FQ"><div class="FQA">Quote:</div>/// <summary>
        /// This method will search for a Key value and return its value
        /// </summary>
        /// <param name="filePath"></param>
        /// <param name="referencevalue"></param>
        private static void SearchString(string filePath, string referencevalue, string delimiter)
        {
            try
            {
                if (System.IO.File.Exists(filePath))
                {
                    StreamReader sr = new StreamReader(new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
                    string Originaldata = string.Empty;
                    string Updatedata = string.Empty;

                    //Read Line by Line
                    string[] file = System.IO.File.ReadAllLines(filePath);
                    foreach (string line in file)
                    {
                        if (line.Contains(referencevalue))
                        {
                            string[] arrValue = Regex.Split(line, delimiter);
                            string value = arrValue[1];
                            Console.WriteLine("The Value of Server is " + value);
                        }
                    }
                }
                else
                {
                    Console.WriteLine("[Error] File does not exists in path -" + filePath);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
        }
</blockquote>

Hope it helps. Thanks.
   

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