ASCII & Unicode Character Codes

Unicode is an industry-standard that was developed from the previous ASCII standard (which is now part of Unicode). Character encoding or character encoding is usually used in web development to display non-standard characters.

It is said that this code is used in HTML, C#, VBScript, VB.NET, PHP & JavaScript:

• HTML using &#XXX
• C# using Convert.ToChar(XXX)
• VBScript, VB.NET dan PHP using chr(XXX) function.
• JavaScript using String.fromCharCode(XXX)

Which XXX is the entity number

I more often use it in windows apps especially VB.NET and VB6 (for ASCII in the past). Which function is to check what keyboard keys are pressed to determine what code to run.

Examples are as follows:

VB6
Private Sub txtUserName_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
   txtPassword.SetFocus
End If
End Sub

VB.NET
Private Sub cboPaymentMedia_KeyPress(sender As Object,
            e As KeyPressEventArgs) Handles cboPaymentMedia.KeyPress
    If Asc(e.KeyChar) = 13 Then
        txtPayment.Focus()
    End If
End Sub

I usually use this code to limit only numeric input and focus settings or trigger certain events when a key on the keyboard is pressed.

The most frequently used is keyascii 13 for enter. And make my own notes too, here are some keyascii that you can copy.

	33	!			71	G			108	l			145	‘			182	¶			219	Û
	34	"			72	H			109	m			146	’			183	·			220	Ü
	35	#			73	I			110	n			147	“			184	¸			221	Ý
	36	$			74	J			111	o			148	”			185	¹			222	Þ
	37	%			75	K			112	p			149	•			186	º			223	ß
	38	&			76	L			113	q			150	–			187	»			224	à
	39	'			77	M			114	r			151	—			188	¼			225	á
	40	(			78	N			115	s			152	˜			189	½			226	â
	41	)			79	O			116	t			153	™			190	¾			227	ã
	42	*			80	P			117	u			154	š			191	¿			228	ä
	43	+			81	Q			118	v			155	›			192	À			229	å
	44	,			82	R			119	w			156	œ			193	Á			230	æ
	45	-			83	S			120	x			157				194	Â			231	ç
	46	.			84	T			121	y			158	ž			195	Ã			232	è
	47	/			85	U			122	z			159	Ÿ			196	Ä			233	é
	48	0			86	V			123	{			160				197	Å			234	ê
	49	1			87	W			124	|			161	¡			198	Æ			235	ë
	50	2			88	X			125	}			162	¢			199	Ç			236	ì
	51	3			89	Y			126	~			163	£			200	È			237	í
	52	4			90	Z							164	¤			201	É			238	î
	53	5			91	[			128	€			165	¥			202	Ê			239	ï
	54	6			92	\							166	¦			203	Ë			240	ð
	55	7			93	]			130	‚			167	§			204	Ì			241	ñ
	56	8			94	^			131	ƒ			168	¨			205	Í			242	ò
	57	9			95	_			132	„			169	©			206	Î			243	ó
	58	:			96	`			133	…			170	ª			207	Ï			244	ô
	59	;			97	a			134	†			171	«			208	Ð			245	õ
	60	<			98	b			135	‡			172	¬			209	Ñ			246	ö
	61	=			99	c			136	ˆ			173	­			210	Ò			247	÷
	62	>			100	d			137	‰			174	®			211	Ó			248	ø
	63	?			101	e			138	Š			175	¯			212	Ô			249	ù
	64	@			102	f			139	‹			176	°			213	Õ			250	ú
	65	A			103	g			140	Œ			177	±			214	Ö			251	û
	66	B			104	h			141				178	²			215	×			252	ü
	67	C			105	i			142	Ž			179	³			216	Ø			253	ý
	68	D			106	j			13	enter			180	´			217	Ù			254	þ
	69	E			107	k			8	backspace			181	µ			218	Ú			255	ÿ
	70	F