C#

Reza Shojaee wrote:

My Problem not TextBox.
You suppose I want show data from file line by line into TextBox.
My problem is volume of file

StreamReader sr = new StreamReader("c:\\1.psd");<br />
            string line;<br />
<br />
            while ((line = sr.ReadLine()) != null)

List<string> list = new List<string>();
using (StreamReader sr = new StreamReader(openFileDialog1.FileName))
{
      //Read lines
      while (sr.Peek() >= 0)
         list.Add(sr.ReadLine());
}