Saturday, 14 February 2015

How to disable keyboard on JSP page using Java Script


In some cases you need to disable keyboard in your JSP (web page) page. Here is the simple example using Java Script you can do it.

<script type="text/javascript">
document.onkeydown = function (e) {
    if(e.which == 49){
            return false;
    }
}
</script> 

Here is the key code for all the key of the Keyboard. Use it with above code.

KEY CODE KEY CODE
backspace 8 tab 9
enter 13 shift 16
ctrl 17 alt 18
pause/break 19 caps lock 20
escape 27 page up 33
page down 34 end 35
home 36 left arrow 37
up arrow 38 right arrow 39
down arrow 40 insert 45
delete 46 0 48
1 49 2 50
3 51 4 52
5 53 6 54
7 55 8 56
9 57 a 65
b 66 c 67
d 68 e 69
f 70 g 71
h 72 i 73
j 74 k 75
l 76 m 77
n 78 o 79
p 80 q 81
r 82 s 83
t 84 u 85
v 86 w 87
x 88 y 89
z 90 left window key 91
right window key 92 select key 93
numpad 0 96 numpad 1 97
numpad 2 98 numpad 3 99
numpad 4 100 numpad 5 101
numpad 6 102 numpad 7 103
numpad 8 104 numpad 9 105
multiply 106 add 107
ctrl 17 alt 18
subtract 109 decimal point 110
divide 111 f1 112
f2 113 f3 114
f4 115 f5 116
f6 117 f7 118
f8 119 f9 120
f10 121 f11 122
f12 123 num lock 144
scroll lock 145 semi-colon 186
equal sign 187 comma 188
dash 189 period 190
forward slash 191 grave accent 192
open bracket 219 back slash 220
close braket 221 single quote 222



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