Search Method through text file c#

Question

I have made an application which saves and loads data from a text file. What I want to do is search for a string, display that string as well as the two strings after in the appropriate places of the WPF. I think it is finding the string okay because the counter is displaying correctly however none of the strings are displaying. Here is my search method:

   public void Search(string searchTerm)
    {
        var lineCount = File.ReadLines("products.txt").Count();
        string line;
        int counter = 0;


        System.IO.StreamReader file = new System.IO.StreamReader("products.txt");

        while ((line = file.ReadLine()) != null)
        {
            if (line.Contains(searchTerm))
            { 

                break;
            }

            counter++;
        }

        textBlock.Text = counter.ToString();

        string[] allLines = File.ReadAllLines("products.txt");

        allLines[counter] = productNameBlock.Text;
        allLines[counter + 1] = customerNameBlock.Text;
        allLines[counter + 2] = firmwareBlock.Text;


    }

any ideas?

Answer 1

I think you flipped the assignment:

productNameBlock.Text = allLines[counter];
customerNameBlock.Text = allLines[counter + 1];
firmwareBlock.Text = allLines[counter + 2];

Second, you're not using lineCount so just remove that extra reading line.

Answer 2

Why didn't you use the search function I provided you in your last question ? Could have done this easily. Anyway...

   public void Search(string searchTerm)
    {
        var allLines = File.ReadAllLines("products.txt");
        int nonMatchingLineCount = allLines.Where(line => !line.Contains(searchTerm)).Count();

        textBlock.Text = nonMatchingLines.Count().ToString();

        productNameBlock.Text = allLines[counter];
        customerNameBlock.Text = allLines[counter + 1];
        firmwareBlock.Text = allLines[counter + 2];
    }

Answer 3

Seems like you have this reversed

allLines[counter] = productNameBlock.Text;
allLines[counter + 1] = customerNameBlock.Text;
allLines[counter + 2] = firmwareBlock.Text;

What if you did this instead?

productNameBlock.Text = allLines[counter];
customerNameBlock.Text = allLines[counter + 1];
firmwareBlock.Text = allLines[counter + 2];