使用Asp.net中的Javascript进行电子邮件和mobno验证 [英] Email and mobno Validation using Javascript in Asp.net

问题描述

我想在asp.net中使用javascript为Mobno和电子邮件进行验证







< script type =text / javascript>

函数validate（）{

var cno，email，Msg;



cno = document.getElementById（txt_Cno）。value;

email = document.getElementById（txt_EmailID）。value;



if（cno ==）{

Msg =请仅输入否\ n;

}

if（email ==）{

Msg + = Please valid email \\\
;

}



返回提醒（消息）;









}

< / script>

解决方案

试试这个

 <脚本   类型  =  text / javascript >  
函数validate（）
 {
  if （document.mobilenumbervalidation.mobileno。 value  ==   || 
 isNaN（document.mobilenumbervalidation.mobileno。 value ）|| 
 document.mobilenumbervalidation.mobileno。 value  .length！=  10 ）
 { 
 alert（ 请提供123格式的手机号码。）; 
 document.mobilenumbervalidation.mobileno.focus（）; 
 
  return   false ; 
} 
  if （document.mobilenumbervalidation.phoneno。 value  ==   || 
 isNaN（document.mobilenumbervalidation.phoneno。 value ）|| 
 document.mobilenumbervalidation.phoneno。 value  .length！=  10 ）
 {
 alert（ 请提供格式为123的电话号码。）; 
 document.mobilenumbervalidation.phoneno.focus（）; 
  return   false ; 
} 
  var  email = document.mobilenumbervalidation.email_id。 value ; 
 atpos = email.indexOf（  @）; 
 dotpos = email.lastIndexOf（ 。）; 
  if （email ==   || atpos <   1  ||（dotpos  -  atpos <   2 ））
 {
 alert（ 请输入正确的电子邮件ID）; 
 document.mobilenumbervalidation.email_id.focus（）; 
  return   false ; 
} 
 
  return （ true ）; 
} 
 < /   script  >  

 <  表        border   =  1      bgcolor   = ＃585858    width   =  20％      align   =   center >  
 <   tr  >  
 <  < span class =code-leadattribute> td  >  MobileNo <   / td  >  
 <  < span class =code-leadattribute> td  >  <  输入    type   =  text    name   =  mobileno    id   =  mobileno     size   = < span class =code-keyword> 30 >  <   / td  >  
 <  < span class =code-leadattribute> / tr  >  
 <   tr  >  
 <   td  > 电话号码<   / td  >  
  <   td  >  <  输入   类型  =  text   名称  =  phoneno    id   =  phoneno    size   =  30 >  <   / td  >  
 <   / tr  >  
 <   tr  >  
 <   td  >  Email_id <  < span class =code-leadattribute> / td  >  
 <   td  >  <   input     type   =  text    name   =  email_id    id   =  email_id       size   =  30 >  <   / td  >  
 <   / tr  >  

I want to give the validation using javascript in asp.net for Mobno and Email



<script type="text/javascript">
function validate() {
var cno, email,Msg;

cno = document.getElementById("txt_Cno").value;
email = document.getElementById("txt_EmailID").value;

if (cno == "") {
Msg = Please Enter only No \n;
}
if (email == ) {
Msg +=Please valid Email \n;
}

return alert(Msg);




}
</script>

解决方案

try this

<script type="text/javascript">
function validate()
{
  if( document.mobilenumbervalidation.mobileno.value == "" ||
           isNaN( document.mobilenumbervalidation.mobileno.value) ||
           document.mobilenumbervalidation.mobileno.value.length != 10 )
   {
     alert( "Please provide a Mobile No in the format 123." );
     document.mobilenumbervalidation.mobileno.focus() ;

     return false;
   }
  if( document.mobilenumbervalidation.phoneno.value == "" ||
          isNaN( document.mobilenumbervalidation.phoneno.value) ||
          document.mobilenumbervalidation.phoneno.value.length != 10 )
  {
    alert( "Please provide a Phone No in the format 123." );
    document.mobilenumbervalidation.phoneno.focus() ;
    return false;
  }
   var email = document.mobilenumbervalidation.email_id.value;
  atpos = email.indexOf("@");
  dotpos = email.lastIndexOf(".");
 if (email == "" || atpos < 1 || ( dotpos - atpos < 2 ))
 {
     alert("Please enter correct email ID");
     document.mobilenumbervalidation.email_id.focus() ;
     return false;
 }

 return( true );
}
</script>

<table   border="1"  bgcolor="#585858" width="20%"  align="center">
        <tr>
        <td>MobileNo</td>
        <td><input type="text" name="mobileno" id="mobileno" size="30"></td>
    </tr>
     <tr>
        <td>Phone No</td>
        <td><input type="text" name="phoneno" id="phoneno" size="30"></td>
     </tr>
    <tr>
        <td>Email_id</td>
        <td><input type="text" name="email_id" id="email_id"  size="30"></td>
    </tr>

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