How do I make page list

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C#3.5

books

string

file

text

paging

, +

i want to make Textviewer. this show Two pages. like book!!

so i want to know. how to make page (string[] array or list).

and i wish to use graphics.drawstring or textrenderer. not textbox control.

because i already make it use with textbox. but it is too slow loading and resizing.

i have a good target here 책보는 프로그램 - 별북 ( 1.5 정식 ) :: 제이드민

i wish it can open 10mbytes or bigger files.

let me know your knowhow.

What I have tried:

i already make this but it is slow. i used textbox control.
when i resize wordwrap is Change all text. and have to make page reindex all text.
it takes so long.
give me a tip.

ok i think my question is bad.

i wish this code be Fast

string filetxt = string.Empty;
private void toolStripButton2_Click(object sender, EventArgs e)
{
    OpenFileDialog ofd = new OpenFileDialog();
    ofd.Filter = "Textfile|*.txt";
    string filename = string.Empty;
    if (DialogResult.OK == ofd.ShowDialog())
    {
        filename = ofd.FileName;
        filetxt = File.ReadAllText(filename, System.Text.Encoding.GetEncoding(51949));

        Graphics aa = CreateGraphics();
        SizeF sizefl = new SizeF(panel1.Width - 20, panel1.Height - 20);
        StringFormat stf = new StringFormat(StringFormatFlags.LineLimit);
        int charactersfitted;
        int linesfilled;
        //find max lines
        string bbb = "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n";
        SizeF sf = aa.MeasureString(bbb, new Font("굴림", 12), sizefl, stf, out charactersfitted, out linesfilled);
        int maxlines = linesfilled;
        charactersfitted = 0;
        linesfilled = 0;
        int indexofchar = 0;
        int page = 0;
        while (true)
        {
            if (indexofchar < filetxt.Length - 10000)
            {
                string aaa = filetxt.Substring(indexofchar, 10000);
                SizeF sfefs = aa.MeasureString(aaa, new Font("굴림", 12), sizefl, stf, out charactersfitted, out linesfilled);
                indexofchar += charactersfitted;
                pages[page] = aaa.Substring(0, charactersfitted);
                page++;
            }
            else {
                break;
            }
        }
        hScrollBar1.Maximum = page;
        Invalidate();
        Refresh();
    }

}

private void panel1_Paint(object sender, PaintEventArgs e)
{
    Rectangle rect = new Rectangle(10, 10, panel1.Width - 20, panel1.Height - 20);
    e.Graphics.DrawRectangle(new Pen(Color.Black), rect);
    StringFormat stf = new StringFormat(StringFormatFlags.LineLimit);
    e.Graphics.DrawString(pages[pagesval], new Font("굴림", 12), new SolidBrush(Color.Black), rect, stf);
}
string[] pages = new string[100000];
int pagesval = 0;
private void hScrollBar1_ValueChanged(object sender, EventArgs e)
{
    pagesval = hScrollBar1.Value;
    Invalidate();
    Refresh();
}