文本文件阅读器仅读取第一行

Question

I'm trying to load every row in the text document into a list. But for some reason, it only reads the first line and then exits.

I have used this exact file reading method and it worked without any problems. Now when I want to use it in the same way it doesn't work. I've tried different accounts of rows in the text document but it always exits the loop after the first row.

            //Reads the text file
        var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
        using (var streamReader = new StreamReader(fileStream, Encoding.UTF8))
        {
            //Adds the content of each line to a list
            string line;
            while ((line = streamReader.ReadLine()) != null)
            {
                destinationEmails.Add(line);
            }
        }

I Expect all lines to be read and put in the list.

Answer 1

You should call ReadAllLines() to read all of the lines in the document. Update your code as following code.

    //Reads the text file
    var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);

    using (var streamReader = new StreamReader(fileStream, Encoding.UTF8))
    {
        //Adds the content of each line to a list

        string line = string.Empty;

        while ((line = streamReader.ReadAllLines()) != null)
        {
            destinationEmails.Add(line);
        }
    }