Question

我有这段代码

private void button1_Click(object sender, EventArgs e)
{
    Stream myStream;

    OpenFileDialog openFileDialog1 = new OpenFileDialog();

    openFileDialog1.Filter = "Text Files (.txt)|*.txt|All Files (*.*)|*.*";
    openFileDialog1.FilterIndex = 1;
    openFileDialog1.Multiselect = true;

    if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    {
        if ((myStream = openFileDialog1.OpenFile()) != null)
        {
            string strfilename = openFileDialog1.FileName;
            string filetext = File.ReadAllText(strfilename);

            richTextBox3.Text = filetext; // reads all text into one text box
        }
    }
}

我正在努力研究如何将文本文件的每一行放到另一个文本框中，或者可能将它存储在一个数组中，有人可以帮忙！

Answer 1

File.ReadAllText将读取文件中的所有文字。

string filetext = File.ReadAllText("The file path");

如果你想将每一行分别存储在一个数组中，File.ReadAllLines可以做到这一点。

string[] lines = File.ReadAllLines("The file path");

Answer 2

或者，您可以使用以下命令返回字符串列表。然后，您可以将字符串列表直接绑定到控件，也可以遍历列表中的每个项目并以这种方式添加它们。见下文：

public static List<string> GetLines(string filename)
{
    List<string> result = new List<string>(); // A list of strings 

    // Create a stream reader object to read a text file.
    using (StreamReader reader = new StreamReader(filename))
    {
        string line = string.Empty; // Contains a single line returned by the stream reader object.

        // While there are lines in the file, read a line into the line variable.
        while ((line = reader.ReadLine()) != null)
        {
            // If the line is not empty, add it to the list.
            if (line != string.Empty)
            {
                result.Add(line);
            }
        }
    }

    return result;
}

将文件内容读取到数组

2 个答案: