封装好的Javascript客户端校验类，支持各种数据类型和校验方法

ValidateUti.js

/**

* <p>Title: ValidateUti.js</p>

* <p>Description: the js be include to validate form data.</p>

* <p>Company: Freeborders</p>

* @author Rukee Fan

* @version 1.1 2004-08-05

* @see sample page: validateSample.htm

function FBvalidater(){

this.clearinvalidControlList();

this.clearvalidater();

}

FBvalidater.prototype =

{

validateobj_obj : [],

errorMessage : '',

invalidControlList : [],

firstinvalidControl : null,

AutoFocus : true,

AutoSelect : true,

DATE_FORMAT : "yyyy-mm-dd",

addvalidater : function(validater)

{

var a_lenght = this.validateobj_obj.length;

this.validateobj_obj[a_lenght] = validater;

addrequirevalidater : function(ValidateControl,ErrorMessage)

{

var obj_validate = new requirevalidater(ValidateControl,ErrorMessage) ;

this.addvalidater(obj_validate);

addcomparevalidater : function(ValidateControl,CompairMethod,DataType,CompairValue,ErrorMessage) {

var obj_validate = new comparevalidater(ValidateControl,CompairMethod,DataType,CompairValue,ErrorMessage);

this.addvalidater(obj_validate);

clearvalidater : function()

{

var Temp_obj = new Array();

this.validateobj_obj = Temp_obj;

validate : function()

{

this.clearinvalidControlList();

this.errorMessage = "";

var errormessage = "";

var i=0;

for (i=0;i<=(this.validateobj_obj.length-1);i++) {

var obj = this.validateobj_obj[i].ValidateControl;

if (obj.length) {

var subobj;

for (subobj in obj) {

//----- 2004-08-05 add by rukee.fan -----

// when validate a obj array with same error message, only display this message one time.

var validatereturn = this.validateobj(obj[subobj],this.validateobj_obj[i]);

if (validatereturn!=false) {

this.addToinvalidControlList(obj[subobj]);

errormessage = errormessage + validatereturn;

break;

}

//----- 2004-08-05 add by rukee.fan -----

}

}else{

var validatereturn = this.validateobj(obj,this.validateobj_obj[i])

if (validatereturn!=false) {

this.addToinvalidControlList(obj);

errormessage = errormessage + validatereturn;

}

if (errormessage!="") {

if (this.AutoFocus) {

try {

this.firstinvalidControl.focus();

}catch(e){}

}

if (this.AutoSelect) {

try {

this.firstinvalidControl.select();

}catch(e){}

}

this.errorMessage = errormessage;

return false;

}else{

return true;

}

validateobj : function(obj,validater)

{

if (validater.ValidateType.toLowerCase()=="require"&&obj.value.trim()=="") {

return validater.ErrorMessage;

}

if (validater.ValidateType.toLowerCase()=="compare") {

var CompairValue = validater.CompairValue;

var IsComparePass;

if (validater.DataType.toLowerCase()=="length") {

CompairValue = parseInt(CompairValue);

if (isNaN(CompairValue))

{

alert("CompairValue parameter error,it must be a integer.");

return false;

}

IsComparePass = eval(obj.value.toString().length.toString() + validater.CompairMethod + CompairValue.toString())

if (IsComparePass) {

return false;

}

return validater.ErrorMessage;

}

if (obj.value.trim()=="") return false;

var get_inputvalue; //get the value passed the validate.

if (validater.DataType.toLowerCase()=='number') {

var ls_TempValue=obj.value.ChangeToNum();

if (isNaN(ls_TempValue))

{

return validater.ErrorMessage;

}else{

get_inputvalue = obj.value.trim();

}

if (validater.DataType.toLowerCase()=='int') {

get_inputvalue = obj.value.trim();

if (get_inputvalue.toString()!= parseInt(get_inputvalue).toString()) {

return validater.ErrorMessage;

}else{

}

if (validater.DataType.toLowerCase()=='date') {

get_inputvalue = obj.value.parseDate(this.DATE_FORMAT);

if (get_inputvalue) {

}else{

return validater.ErrorMessage;

}

if (validater.CompairMethod.toLowerCase() != "typecheck") {

if (validater.DataType=='date') {

get_inputvalue = get_inputvalue.getTime().toString();

CompairValue = validater.CompairValue.parseDate(this.DATE_FORMAT);

if (CompairValue) {

CompairValue = CompairValue.getTime().toString();

}

IsComparePass = eval(get_inputvalue + validater.CompairMethod + CompairValue)

if (!IsComparePass) {

return validater.ErrorMessage;

}

return false;

addToinvalidControlList : function(obj)

{

var a_lenght = this.invalidControlList.length;

this.invalidControlList[a_lenght] = obj;

this.firstinvalidControl = this.invalidControlList[0];

clearinvalidControlList : function()

{

var Temp_obj = new Array();

this.invalidControlList = Temp_obj;

firstinvalidControl = null;

}

function requirevalidater() {

this.ValidateControl = "";

this.ValidateType = "require";

this.ErrorMessage = "";

}

function requirevalidater(ValidateControl,ErrorMessage) {

this.ValidateControl = ValidateControl;

this.ValidateType = "require";

this.ErrorMessage = ErrorMessage;

}

function comparevalidater() {

this.ValidateControl = "";

this.ValidateType = "compare";

this.CompairMethod = "TypeCheck"; // >; >= ; = ; <= ; <;

this.DataType = ""; //number; int; Date; Length;

this.CompairValue = "";

this.ErrorMessage = "";

}

function comparevalidater(ValidateControl,CompairMethod,DataType,CompairValue,ErrorMessage) {

this.ValidateControl = ValidateControl;

this.ValidateType = "compare";

if (CompairMethod=="") CompairMethod = "TypeCheck";

this.CompairMethod = CompairMethod; // TypeCheck ; > ; >= ; = ; <= ; <;

this.DataType = DataType; //number; int; Date; Length;

this.CompairValue = CompairValue;

this.ErrorMessage = ErrorMessage;

}

/**

* parseDate(format)

* parse a string to date

String.prototype.parseDate = function(format){

var dateVal = this;

if(dateVal==undefined) return false;

if(dateVal==null) return false;

dateVal=dateVal.trim();

if(format.length!=dateVal.length) return false;

var dateArr=["","","","","",""];

for(z=0;z<format.length;z++)

{

switch(format.charAt(z))

{

case "d":dateArr[0]+=dateVal.charAt(z);break;

case "m":dateArr[1]+=dateVal.charAt(z);break;

case "y":dateArr[2]+=dateVal.charAt(z);break;

case "h":dateArr[3]+=dateVal.charAt(z);break;

case "i":dateArr[4]+=dateVal.charAt(z);break;

case "s":dateArr[5]+=dateVal.charAt(z);break;

}

};

for(z=0;z<dateArr.length;z++)

{

if(isNaN(dateArr[z]))return false;

dateArr[z]=new Number(dateArr[z]);

};

if(dateArr[0]<1||dateArr[0]>31) return false;

if(dateArr[2]<100)

{

dateArr[2]+=1900;

if(dateArr[2]<1950)dateArr[2]+=100;

}

if(dateArr[3]>24)return false;

if(dateArr[5]>60)return false;

if(dateArr[0]==31&&(dateArr[1]==2||dateArr[1]==4||dateArr[1]==6||dateArr[1]==9||dateArr[1]==11)) return false;

if(dateArr[0]==29&&dateArr[1]==2&&dateArr[2]%4!=0)return false;

return new Date(dateArr[2],dateArr[1]-1,dateArr[0],dateArr[3],dateArr[4],dateArr[5]);

}

/**

* trim()

* Use null string to replace space before and after of the string;

String.prototype.trim = function()

{

return this.replace(/(^s*)|(s*$)/g, "");

}

/**

* ChangeToNum()

* change string to number;

String.prototype.ChangeToNum = function()

{

var r, re;

re = / /g;

r=this.replace(re, "");

if (r=="") {

r="ls_null";

}

var reg = /^[-|+]?[d]+(.)?[d]*$/;

var r2 =r.match(reg);

if(r2==null) r = parseFloat("abc"); // return a NaN;

return(r);

}

validateSample.htm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<title>Fabric Details</title>

<!--

{

word-break:normal;

}

//-->

</style>

<!--

function checkFormData(){

//new a validater

var myFBvalidater = new FBvalidater();

validate1 = new requirevalidater()

validate1.ValidateControl = SB_Asset_Details_form.LocalAssetImage;

validate1.ErrorMessage = "Please select a local image ! ";

myFBvalidater.addvalidater(validate1);

var objarray=new Array();

objarray[1]=SB_Asset_Details_form.LocalAssetID;

objarray[0]=SB_Asset_Details_form.Description;

// addrequirevalidater(ValidateControl,ErrorMessage) 向校验对象中新增需要校验不为空的控件对象。

//参数一ValidateControl: 待校验的控件对象，可以是一个控件，也可以是一个控件数组

//参数二 ErrorMessage: 如果校验不通过返回的错误信息。

myFBvalidater.addrequirevalidater(objarray, "Field can not been null! ")

//addcomparevalidater(ValidateControl,CompairMethod,DataType,CompairValue,ErrorMessage) 向校验对象中新增需要进行比较校验（数据类型，数据范围）的控件对象。

//第一个参数ValidateControl：是指定待校验的控件对象，可以是一个控件，也可以是一个控件数组。

//第二个参数CompairMethod：指定校验方法，包括 (TypeCheck, >, >=, =, <, <=)

//第三个参数DataType：指定数据类型，包括 (number, int, Date, Length )

//第四个参数CompairValue：指定校验的比较值，如果是字符校验，则指定长度，如果是对页面中的两个控件的值进行比较，此参数可以是要进行比较的控件的值（如：validateForm.modiDate.value）。

//第五个参数ErrorMessage：如果校验不通过返回的错误信息

//所有参数必须输入，当第二个参数是'TypeCheck'，则第三个参数不能是'Length'

// validate a integer type input field;

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.txt_typenumber,'TypeCheck','number','','Please input a integer! ');

// validate a number input field, must bigger than 7.

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.txt_compairnumber,'>','number','7','Please input a integer big than 7! ');

// validate a number input field, must bigger than another number input field.

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.txt_compairnumber,'>','number',SB_Asset_Details_form.txt_typenumber.value,'compairnumber must bigger than typenumber! ');

// validate a datetime input field.

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.txt_inputDate,'TypeCheck','date','','Please input a DateTime! ');

// validate a datetime input field, must bigger than 2003-04-01.

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.txt_inputDate,'>','date','2003-04-01','Please input a DateTime biger than 2003-04-01! ');

// validate a input field, length must less or equal than 10.

myFBvalidater.addcomparevalidater(SB_Asset_Details_form.Description,'<=','Length','10','field length must <= 10! ');

// validate()

// returnvalue: true or false

if (myFBvalidater.validate())

{

alert("validate passed!");

} else{

alert(myFBvalidater.errorMessage);

}

//-->

</script>

<textarea name="Description" cols="41" rows="5" onkeypress="javascript:if(this.value.length>248){return false;}">few</textarea><br>

Number(int):<input type="input" name="txt_typenumber" size="26" value="" ><br>

Compair Number( >7 ):<input type="input" name="txt_compairnumber" size="26" value="" ><br>

Date:<input type="input" name="txt_inputDate" size="26" value="" ><br>

</form>

</body>

</html>

posted on 2004-08-09 14:19 快活鱼阅读(1782) 评论(4) 编辑收藏举报

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封装好的Javascript客户端校验类，支持各种数据类型和校验方法