WinForm Small Program NotePad

Operating effect:

Code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.ComponentModel;4 usingSystem.Data;5 usingSystem.Drawing;6 usingSystem.Linq;7 usingSystem.Text;8 usingSystem.Threading.Tasks;9 usingSystem.Windows.Forms;Ten  One namespacefreenotes A { -      Public Partial classNotepad:form -     { the          PublicNotePad () -         { - InitializeComponent (); -         } +  -         /// <summary> +         ///Open File Event A         /// </summary> at         Private voidBtn_open_click (Objectsender, EventArgs e) -         { -OpenFileDialog of =NewOpenFileDialog (); -  -Of. DEFAULTEXT ="*.rtf"; -  inOf. Filter ="RTF file (*.rtf) |*.rtf| All Files (*. *) |*.*"; -  to             if(Of. ShowDialog () = = DialogResult.OK && of. Filename.length >0) +             { - Richtextbox1.loadfile (Of. FileName, richtextboxstreamtype.richtext); the             } *         } $ Panax Notoginseng         /// <summary> -         ///Save File Events the         /// </summary> +         Private voidBtn_save_click (Objectsender, EventArgs e) A         { theSaveFileDialog SA =NewSaveFileDialog (); +  -Sa. Title ="Save"; $  $Sa. FileName ="*.rtf"; -  -Sa. Filter ="RTF file (*.rtf) |*.rtf| All Files (*. *) |*.*"; the  -Sa. DEFAULTEXT ="*.rtf";Wuyi  the             if(SA. ShowDialog () = = DialogResult.OK && sa. Filename.length >0) -             { Wu Richtextbox1.savefile (SA. FileName, richtextboxstreamtype.richtext); -             } About         } $  -         /// <summary> -         ///Font Events -         /// </summary> A         Private voidBtn_font_click (Objectsender, EventArgs e) +         { theFontDialog FDA =NewFontDialog (); -  $Fda. Showcolor =true; the  the             if(FDA. ShowDialog ()! =DialogResult.Cancel) the             { theRichtextbox1.selectionfont =FDA. Font; -Richtextbox1.selectioncolor =FDA. Color; in             } the         } the  About         /// <summary> the         ///emptying text Events the         /// </summary> the         Private voidBtn_clear_click (Objectsender, EventArgs e) +         { - richtextbox1.clear (); the         }Bayi     } the}

WinForm Small Program NotePad