How to read textfile line by line into RichTextbox

Question

I have a textfile which contains texts.Now as per my requirement i have to read this textfile line by line into the richtextbox.At present i am reading all lines of the text file at once into richtextbox.Here is my code ..

richTextBox1.Text = File.ReadAllText("E:\\vikas\\abc.txt");

But i want to display the texts of the textfile into richtextbox line by line.

Answer 1

Something like

List<string> lines = File.ReadLines ("E:\\vikas\\abc.txt").ToList();

foreach (string current in lines)
{
    richTextBox1.Text += current;
}

Answer 2

not checked, but you just do something like this. you do not want to read it straight into a textbox, because that is slow!!!

using(StreamReader sr = new StreamReader(filename)
{
    StringBuilder sb = new StringBuilder();
    While(sr.Peek() >-1)
    {
         sb.Append(   sr.ReadLine() );
    }

    The_Textbox.Text = sb.ToString();
}