09/02 Designing a Notepad in VS:

Date 9-2-11 Wednesday

Dock Property –  Using Dock Property we can define which borders of the control are bound to the container. It can be set with different values like - Left, Right, Top, Bottom and Fill.

 

Rich TextBox – This control is similar to a textbox but provides all the built in functionalities for Cut, Copy, Past, Save, Open etc.

Procedure of Designing a Notepad in VS:

Open a new form set as title as untitled and place a menu strip control on it.

 Add four menus init --> File, Edit, Format, and Help.

Under File menu add the menu items – new, open, save, save as, close.

Under edit menu add the menu items – cut, copy, past, undo and redo.

Under Format menu add – word wrap, fount, color and make word wrap as checked.

Under help add – calculator and about My Notepad.

- Now place a rich TextBox control on the form and set its dock property as fill and change the name as “rtbText”.

- Place an OpenFileDialog, SaveFileDialog, ColorDialog and FontDialog control in form.

using System.Diagnostics;

class Declaretion string fname; private void CheckForSave()         {             if (rtbText.Text.Trim().Length > 0)             {                 DialogResult dr = MessageBox.Show("Do you wish to save the constant?", "my notepad", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Information);                 if (dr == DialogResult.Yes)                 {                     saveFileDialog1.ShowDialog();                     fname = saveFileDialog1.FileName;                     rtbText.SaveFile(fname, RichTextBoxStreamType.PlainText);                     rtbText.Clear();                 }                 else if (dr == DialogResult.No)                     rtbText.Clear();             }         }

Under New Menu item: CheckForSave();

Under Open Menu item: {             CheckForSave();             openFileDialog1.ShowDialog();             fname = openFileDialog1.FileName;             rtbText.LoadFile(fname,RichTextBoxStreamType.PlainText);             this.Text = fname; }

Under Save menu Item:             if (this.Text == "Untitled")             {                 saveFileDialog1.ShowDialog();                 fname = saveFileDialog1.FileName;                 rtbText.SaveFile(fname,          RichTextBoxStreamType.PlainText);                 rtbText.Clear();             }             else                 rtbText.SaveFile(fname,    RichTextBoxStreamType.PlainText);

Under SaveAs menu item: saveFileDialog1.ShowDialog();             fname = saveFileDialog1.FileName;             rtbText.SaveFile(fname, RichTextBoxStreamType.PlainText);             this.Text = fname;

Under Close menu item:             CheckForSave();             this.Close();

Under Cut menu item: rtbText.Cut(); Under Copy menu item: rtbText.Copy();        Under Paste menu item: rtbText.Paste(); Under Undo menu item: rtbText.Undo(); Under Redo menu item: rtbText.Redo();

Under Word Wrap menu item: if (wordWrapToolStripMenuItem.Checked == true)             {                 wordWrapToolStripMenuItem.Checked = false;                 rtbText.WordWrap = false;             }             else                 wordWrapToolStripMenuItem.Checked = true;             rtbText.WordWrap = true;

Under Font menu item: fontDialog1.ShowDialog(); rtbText.Font = fontDialog1.Font; Under Color menu item: colorDialog1.ShowDialog(); rtbText.ForeColor = colorDialog1.Color;

Under Calculator menu item: Process.Start("calc.exe"); Under About Menu item: Form1 f = new Form1(); f.ShowDialog();