Notepad dialog box

namespace windowsformsapplication6{public partial class Form1:form {public Form1 () {in        Itializecomponent (); private void Button1_Click (object sender, EventArgs e) {DialogResult Dr = Colordialog1.showdia            Log (); if (dr = = DialogResult.OK) {this.            BackColor = colorDialog1.Color; }} private void Button2_Click (object sender, EventArgs e) {DialogResult Dr = Folderbrowse           Rdialog1.showdialog ();           if (dr = = DialogResult.OK) {MessageBox.Show (Folderbrowserdialog1.selectedpath);           } else {MessageBox.Show (folderbrowserdialog1.selectedpath);            }} private void Button3_Click (object sender, EventArgs e) {fontdialog1.showdialog ();        MessageBox.Show (FontDialog1.Font.Size.ToString ());        } private string Files; Private void Button4_Click (object sender, EventArgs e) {DialogResult Dr = Openfiledialog1.showdialog ();                if (DialogResult.OK = = dr) {string filename = Openfiledialog1.filename;                StreamReader sr = new StreamReader (filename); TextBox1.Text = Sr.                ReadToEnd (); Sr.                Close ();            Files = filename;            }} private void Button5_click (object sender, EventArgs e) {if (Files = = null)                {savefiledialog1.filter = "text |*.txt|word|*.doc|excel|*.xls";                DialogResult dr = Savefiledialog1.showdialog ();                    if (dr = = DialogResult.OK) {string filename = Savefiledialog1.filename;                    StreamWriter SW = new StreamWriter (filename); Sw.                    Write (TextBox1.Text); Sw.                Close ();          }} else {      StreamWriter SW = new StreamWriter (Files); Sw.                Write (TextBox1.Text); Sw.            Close (); }} private void Form1_Load (object sender, EventArgs e) {} private void Button6_click ( Object sender, EventArgs e) {this.        Close (); private void Button7_click (object sender, EventArgs e) {pagesetupdialog1.document = Printdocum            Ent1;        Pagesetupdialog1.showdialog (); private void Button8_click (object sender, EventArgs e) {printdialog1.document = PrintDocument1            ;            DialogResult dr = Printdialog1.showdialog ();            if (dr = = DialogResult.OK) {printdocument1.print ();        }} private void Printdocument1_printpage (object sender, System.Drawing.Printing.PrintPageEventArgs e)            {System.Drawing.Font F = new System.Drawing.Font ("Arial", 12); E.graphics.drawstrING (textbox1.text,f,system.drawing.brushes.aqua,5,5);        } private void Button9_click (object sender, EventArgs e) {textbox1.selectedtext = "ASD"; private void Button10_click (object sender, EventArgs e) {firstform.find f = new Firstform.fin            D (This.textbox1.selectedtext,this);            F.owner = this;        F.show (); }    }}

　　

Notepad dialog box