C#•13mo ago

String Append

I have the following code:

blablabla.1 {
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

blablabla.2 {
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

blablabla.3{
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

blablabla.1 {
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

blablabla.2 {
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

blablabla.3{
  row1.withCode
  row2.withCode
  row3.withCode
  row4.withCode
}

i read the lines with File.ReadAllLines in an index[i] and search for string "blablabla.2" this is found on line 100 (example) Now I would have to add a line after row2.withCode. Can someone help me with that?

4 Replies

JakenVeina•13mo ago

you're gonna need to clarify what is that code supposed to do? what file are you reading?

ThommyOP•13mo ago

File is an Textfile and the text in it should be changed and then saved again

Bobby•13mo ago

@Thommy

public static void Main()
        {
            string filePath = "path/to/your/file.txt";

            try
            {
                string[] blablaContent = File.ReadAllLines(filePath);
                

                string updatedContent = FindAndInsert(blablaContent, "blablabla.2", "row2.withCode","what ever text you want" )
                // Write the updated content back to the file
                File.WriteAllText(filePath, updatedContent);

                Console.WriteLine("File content updated successfully.");
            }
            catch (IOException e)
            {
                Console.WriteLine($"An error occurred: {e.Message}");
            }
        }

        public static string FindAndInsert(string[] text, string searchSegmentText,string searchRowText, string insertText)
        {
            List<string> list = new List<string>();
            bool foundSegment = false;
            foreach (var line in text)
            {
                list.Add(line);
                var lnText = line.Replace("{","").Trim();
                if (lnText.Equals(searchSegmentText))
                {
                    foundSegment = true;
                }
                if (foundSegment && line.Trim().Equals(searchRowText))
                {
                    list.Add(insertText);
                }
            }

            return string.Join("\n", list);

        }

public static void Main()
        {
            string filePath = "path/to/your/file.txt";

            try
            {
                string[] blablaContent = File.ReadAllLines(filePath);
                

                string updatedContent = FindAndInsert(blablaContent, "blablabla.2", "row2.withCode","what ever text you want" )
                // Write the updated content back to the file
                File.WriteAllText(filePath, updatedContent);

                Console.WriteLine("File content updated successfully.");
            }
            catch (IOException e)
            {
                Console.WriteLine($"An error occurred: {e.Message}");
            }
        }

        public static string FindAndInsert(string[] text, string searchSegmentText,string searchRowText, string insertText)
        {
            List<string> list = new List<string>();
            bool foundSegment = false;
            foreach (var line in text)
            {
                list.Add(line);
                var lnText = line.Replace("{","").Trim();
                if (lnText.Equals(searchSegmentText))
                {
                    foundSegment = true;
                }
                if (foundSegment && line.Trim().Equals(searchRowText))
                {
                    list.Add(insertText);
                }
            }

            return string.Join("\n", list);

        }

I hope this helps ...

ThommyOP•13mo ago

thats very perfect. thx

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String Append