驗證輸入的正確性
來源：互聯網
上載者：User
/*
Date : 2003-12-10
History : Create
Purpose : 驗證輸入資料的準確性，是否按照預定格式
*/
function ValidateDataType( strDataType )
{
var Reg ;
var sExample
if ( strDataType.match( "money") )
{
Reg = /^\d+(,\d\d\d)*(\.\d*)?$/g ;//Deal as double
sExample = "\n123 \n23456.78 \n23,456.78 \n0.12 \n.12 \n";
}
else if ( strDataType.match( "datetime") )
{
Reg = /^([1-2]\d{3})(-|\.)(0?[1-9]|10|11|12)(-|\.)(([0-2]?[1-9])|10|20|30|31)$/g ;
sExample = "\n2003-08-24 2003.08.24\n1998-12-1 1998.12.1";
}
else if ( strDataType.match( "numeric") )
{
Reg = /^\d+(,\d\d\d)*(\.\d*)?$/g ;
sExample = "\n123 \n23456.78 \n23,456.78 \n0.12 \n";
}
else if ( strDataType.match( "wint") )
{
Reg = /^\-*\d+(,\d\d\d)*$/g ;
sExample = "\n20 \n-1 \n";
}
else if ( strDataType.match( "listint") )
{
Reg = /^\d+((,\d+)|(\-|\-\d+(,\d+)*))*$/g ;
sExample = "\n8 \n1,2,4 \n1,2,6-8,12- \n";
}
else if ( strDataType.match( "int") )
{
Reg = /^\d+(,\d\d\d)*$/g ;
sExample = "\n23456 \n23,456 \n";
}
else if ( strDataType.match( "tinyint") )
{
//Reg = /^\d+(,\d\d\d)*$/g ;
Reg = /^[0-2]+\d*$/g ;
sExample = "\n255 \n255 \n";
}
else
{
Reg = /^.*$/g ;
sExample = "a2~!@#$%^&*()_+,./;':";
}
var e = window.event.srcElement;
var str = e.value;
if ( str == "" ) return;
if ( Reg.exec( str )) return;
alert(" 錯誤 : 值 [ " + str + " ] 非法，" + " \n\n正確的格式如下所示 : " + sExample );
e.focus();
}
/*
Date : 2003-12-10
History : Create
Purpose : 將浮點數格式化成只流小數兩位，按照四捨五入方式
*/
function roundFun(numberRound,roundDigit)
{
var digit = Math.pow(10,roundDigit);
var numV = Math.round(numberRound*digit)/digit;
var strV = numV.toString();
var strZero = "";
if(strV.indexOf(".") > -1)
{
for(var j=0; j<roundDigit-strV.split(".")[1].length; j++)
{
strZero += "0";
}
}
else
{
//得到小數點後的字串
strZero = ".";
for(var j=0; j<roundDigit; j++)
{
strZero += "0";
}
}
return strV+strZero;
}
