Reading a text file by Line Numbers and ignoring Lines starting with "i" character.

Question

Hey there,

I was trying to make txt file reader.

which Reads the text file by Line Numbers and ignoring Lines starting with a specific character such as "i".

Is there any good example or tutorial for this?

I have just done this code yet It can only read Text from their character numbers but it can't ignore lines.

^{using System;}

^{using System.IO;}

^{public class CharsFromStr}

^{

^{public static void Main()}

^{

^{// Create a string to read characters from.}

^{string str = "Some number of characters";}

^{// Make a char array the size of the source string}

^{char[] b = new char[str.Length];}

^{// Create an instance of StringReader and attach it to the string.}

^{StringReader sr = new StringReader(str);}

^{// Read 13 characters into the array that holds the string,}

^{// starting at the third array member.}

^{sr.Read(b, 0, 13);}

^{// Display the output.}

^{Console.WriteLine(b);}

^{// Read the rest of the string from the current position in the}

^{// source string into the array, starting at the 6th array member.}

^{sr.Read(b, 5, str.Length- 13);}

^{// Display the output.}

^{Console.WriteLine(b);}

^{string str1 = "1.000000 -1.000000 -1.000000";}

^{char[] v1 = new char[str1.Length];}

^{char[] v2 = new char[str1.Length];}

^{char[] v3 = new char[str1.Length];}

^{StringReader sr1 = new StringReader(str1);}

^{sr1.Read(v1, 0, 9);}

^{Console.WriteLine(v1);}

^{sr1.Read(v2, 0, 18-9);}

^{// Display the output.}

^{Console.WriteLine(v2);}

^{sr1.Read(v3, 0, 27-9);}

^{// Display the output.}

^{Console.WriteLine(v3);}

^{// Close the StringReader.}

^sr.Close();

^{Console.ReadLine();}

^}

Hemant Srivastava · Answer

If it is the case what I interpreted, the code is as: public class CharsFromStr { public static void Main() { String m_sLine; String SpecificSymbol = "A"; // Suppose DataFile.txt contians the data StreamReader oStreamReader = new StreamReader("DataFile.txt"); // Reading line by line data from the file while ((m_sLine = oStreamReader.ReadLine()) != null) { // Trimmin out blank spaces m_sLine = m_sLine.Trim(); // Ignoring lines that start with "SpecificSymbol" if (m_sLine.StartsWith(SpecificSymbol)) { continue; } // Printing out the other lines Console.WriteLine(m_sLine); } } Hope it helps..

Steve · Answer

This helped. Thanks for the Answer.

Hemant Srivastava · Answer

you mean... Suppose a text file contains following three lines and specific character is "i" ---------------------------------- I am a developer Yout are developer Everyone is not developer ---------------------------------- then output should be like this: --------------------------------- Yout are developer Everyone is not developer --------------------------------- Did you mean this? let me clear.