Allow only numbers in a textbox!
This program won't allow any other characters in a textbox then numbers and it allows you to use your Backspace key.
AI
AI 요약: This codebase represents a historical implementation of the logic described in the metadata. Our preservation engine analyzes the structure to provide context for modern developers.
소스 코드
Private Sub text1_KeyPress(KeyAscii As Integer)
Dim Numbers As Integer
Dim Msg As String
Numbers = KeyAscii
If ((Numbers < 48 Or Numbers > 57) And Numbers <> 8) Then
Msg = MsgBox("Only Numbers are aloud in this Textbox", vbCritical, "Error Number")
KeyAscii = 0
End If
End Sub
<html>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
redValue = 255;
blueValue = 255;
greenValue = 255;
redForeValue = 0;
blueForeValue = 0;
greenForeValue = 0;
maxValue = 255;
hexValues = new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F");
i = 0;
function toHex(integer)
{
hexDigit1 = Math.floor(integer / 16);
hexDigit2 = (integer % 16);
return hexValues[hexDigit1] + hexValues[hexDigit2];
}
function shiftFG()
{
redFGHex = toHex(redForeValue);
blueFGHex = toHex(blueForeValue);
greenFGHex = toHex(greenForeValue);
bigFGHex = redFGHex + greenFGHex + blueFGHex;
document.fgColor = bigFGHex;
document.Interface.fgHex.value = bigFGHex;
document.Interface.redFG.value = redForeValue;
document.Interface.blueFG.value = blueForeValue;
document.Interface.greenFG.value = greenForeValue;
}
function shiftBG()
{
redHex = toHex(redValue);
blueHex = toHex(blueValue);
greenHex = toHex(greenValue);
bigHex = redHex + greenHex + blueHex;
document.bgColor = bigHex;
document.Interface.bgHex.value = bigHex;
document.Interface.red.value = redValue;
document.Interface.blue.value = blueValue;
document.Interface.green.value = greenValue;
}
function incrementRed(isBackground)
{
if (isBackground == true )
{
redValue = redValue + 8;
if (redValue > maxValue)
{
redValue = 0;
}
shiftBG();
}
if (isBackground == false)
{
redForeValue = redForeValue + 8;
if (redForeValue > maxValue)
{
redForeValue = 0;
}
shiftFG();
}
}
function decrementRed(isBackground)
{
if (isBackground == true)
{
redValue = redValue - 8;
if (redValue < 0 )
{
redValue = 255;
}
shiftBG();
}
else
{
redForeValue = redForeValue - 8;
if (redForeValue < 0)
{
redForeValue = 255;
}
shiftFG();
}
}
function setRed(value, isBackground)
{
if(value > -1 && value < 256)
{
if( isBackground == true )
{
redValue = value;
shiftBG();
}
else
{
redForeValue = value;
shiftFG();
}
}
}
function incrementBlue(isBackground)
{
if ( isBackground == true )
{
blueValue = blueValue + 8;
if (blueValue > maxValue)
{
blueValue = 0;
}
shiftBG();
}
else
{
blueForeValue = blueForeValue + 8;
if ( blueForeValue > maxValue )
{
blueForeValue = 0;
}
shiftFG();
}
}
function decrementBlue(isBackground)
{
if (isBackground == true)
{
blueValue = blueValue - 8;
if (blueValue < 0)
{
blueValue = 255;
}
shiftBG();
}
else
{
blueForeValue = blueForeValue - 8;
if (blueForeValue < 0)
{
blueForeValue = 255;
}
shiftFG();
}
}
function setBlue(value, isBackground)
{
if (value > -1 && value < 256)
{
if ( isBackground == true )
{
blueValue = value;
shiftBG();
}
else
{
blueForeValue = value;
shiftFG();
}
}
}
function incrementGreen(isBackground)
{
if (isBackground == true)
{
greenValue = greenValue + 8;
if (greenValue > maxValue)
{
greenValue = 0;
}
shiftBG();
}
else
{
greenForeValue = greenForeValue + 8;
if (greenForeValue > maxValue)
{
greenForeValue = 0;
}
shiftFG();
}
}
function decrementGreen(isBackground)
{
if (isBackground == true)
{
greenValue = greenValue - 8;
if (greenValue < 0 )
{
greenValue = 255;
}
shiftBG();
}
else
{
greenForeValue = greenForeValue - 8;
if (greenForeValue < 0)
{
greenForeValue = 255;
}
shiftFG();
}
}
function setGreen(value, isBackground)
{
if ( value > -1 && value < 256 )
{
if ( isBackground == true )
{
greenValue = value;
shiftBG();
}
else
{
greenForeValue = value;
shiftFG();
}
}
}
function unHex(string, fgbg)
{
hex = string.toUpperCase();
counter = 0;
while (hex.charAt(0) != hexValues[counter])
{
counter++;
}
r = 16 * counter;
counter = 0;
while (hex.charAt(1) != hexValues[counter])
{
counter++;
}
r = r + counter;
counter = 0;
while (hex.charAt(2) != hexValues[counter])
{
counter++;
}
g = 16 * counter;
counter = 0;
while (hex.charAt(3) != hexValues[counter])
{
counter++;
}
g = g + counter;
counter = 0;
while (hex.charAt(4) != hexValues[counter])
{
counter++;
}
b = 16 * counter;
counter = 0;
while (hex.charAt(5) != hexValues[counter])
{
counter++;
}
b = b + counter;
if (fgbg == "bg")
{
redValue = r;
blueValue = b;
greenValue = g;
document.Interface.red.value = redValue;
document.Interface.blue.value = blueValue;
document.Interface.green.value = greenValue;
}
if (fgbg == "fg")
{
redForeValue = r;
blueForeValue = b;
greenForeValue = g;
document.Interface.redFG.value = redForeValue;
document.Interface.blueFG.value = blueForeValue;
document.Interface.greenFG.value = greenForeValue;
}
}
function validChar(char)
{
for (j = 0; j < hexValues.length; j++)
{
if (char == hexValues[j])
{
return true;
}
}
return false;
}
function isHex(string)
{
if (string.length != 6)
{
return false;
}
for (k = 0; k < 6; k++)
{
if (! validChar(string.charAt(k)))
{
return false;
}
}
return true;
}
function setBGHex(value)
{
if (isHex(value.toUpperCase()))
{
document.bgColor = value;
unHex(value, "bg");
}
}
function setFGHex(value)
{
if (isHex(value.toUpperCase()))
{
document.fgColor = value;
unHex(value, "fg");
}
}
// End -->
</script>
<style>
input
{
font-family: Arial, Verdana, sans serif;
font-size: 15px;
border: 1px inset black
}
.button
{
font-family: MS sans serif;
font-size: 15px;
border: 1px inset black;
background: #000099;
color: #FFFFFF;
font-weight: bold
}
</style>
</HEAD>
<BODY bgcolor=ffffff topmargin=12 leftmargin=2 rightmargin=2>
<center>
<form name=Interface>
<table border=1 cellspacing=0 cellpadding=5 bordercolordark="ffffff" bordercolorlight="000000" bgcolor="cccccc">
<tr>
<td colspan=3 align=center>Background</td>
<td><input type=text name=bgHex onKeyup="setBGHex(this.value)"></td>
<td colspan=2 align=center>Foreground</td>
<td><input type=text name=fgHex onKeyup="setFGHex(this.value)"></td>
</tr>
<tr>
<td>Red</td>
<td><input type=button value=" + " onClick="incrementRed(true)"></td>
<td><input type=button value=" - " onClick="decrementRed(true)"></td>
<td><input type=text name="red" onKeyup="setRed(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementRed(false)"></td>
<td><input type=button value=" - " onClick="decrementRed(false)"></td>
<td><input type=text name=redFG onKeyup="setRed(this.value, false)"></td>
</tr>
<tr>
<td>Green</td>
<td><input type=button value=" + " onClick="incrementGreen(true)"></td>
<td><input type=button value=" - " onClick="decrementGreen(true)"></td>
<td><input type=text name="green" onKeyup="setGreen(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementGreen(false)"></td>
<td><input type=button value=" - " onClick="decrementGreen(false)"></td>
<td><input type=text name=greenFG onKeyup="setGreen(this.value, false)"></td>
</tr>
<tr>
<td>Blue</td>
<td><input type=button value=" + " onClick="incrementBlue(true)"></td>
<td><input type=button value=" - " onClick="decrementBlue(true)"></td>
<td><input type=text name="blue" onKeyup="setBlue(this.value, true)"></td>
<td><input type=button value=" + " onClick="incrementBlue(false)"></td>
<td><input type=button value=" - " onClick="decrementBlue(false)"></td>
<td><input type=text name=blueFG onKeyup="setBlue(this.value, false)"></td>
</tr>
</table>
</form>
</center>
</body>
</head>
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