javascript validation

122 100+

Hi All..
From 2 days i am learning javascript.. I have written a very basic code to accept a name and a submit boutton.. But my program is not running.. I am working in dreameweaver mx.. My problem is that when enter name and press submit boutton the name in the text box vanishes away.. and if i press submit button without entering any data no error message occurs .. can anyone help me to solve my problem pls ???

Mar 13 '08 #1

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925

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5,390

Expert Mod 4TB

please show your code ...

kind regards

Mar 13 '08 #2

vikas1111

122

100+

since i am not sure about my code so i am pasting all the lines without editing...

Expand|Select|Wrap|Line Numbers

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

<html>

<head>

<title>test Document</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

<script language="JavaScript" type="text/javascript">

<!--

  function validt()

   { 

    valid=true;

      if(document.form1.txtname.value=="")

         { alert("srtreter");

            valid=false;

           document.form1.txtname.focus();

         }

              else{valid=true;}

              return valid:

          }

       //-->

</script> 

</head>
 
<body>

<form name="form1" method="post" action="" onSubmit="return validt();">

<p>Name 

    <input type="text" name="txtname">

</p>

<p>

  <input type="submit" name="Submit" value="Submit">

</p>

</form>

</body>

</html>

Mar 13 '08 #3

gits

5,390

Expert Mod 4TB

try the following:

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 function validt() {

    var node  = document.form1.txtname;

    var valid = node.value != '';
 
    if (!valid) {

        alert('srtreter');

        node.focus();

    }
 
    return valid:

}

Mar 13 '08 #4

vikas1111

122

100+

No its not working..No message appears when i press submit button without entering data into text box...

Mar 13 '08 #5

gits

5,390

Expert Mod 4TB

sorry i copied your typo:

Expand|Select|Wrap|Line Numbers

return valid:

MUST be:

Expand|Select|Wrap|Line Numbers

return valid;

of course.

kind regards

Mar 13 '08 #6

RamananKalirajan

608

512MB

sorry i copied your typo:

Expand|Select|Wrap|Line Numbers

return valid:

MUST be:

Expand|Select|Wrap|Line Numbers

return valid;

of course.

kind regards

Expand|Select|Wrap|Line Numbers

 <html>

<head>

<script language="javascript">

function validThis()

{

  var x = document.getElementById('textval');

  if(x.value=="")

   {

   alert("Missing");

   return false;

  }

 return true;

}

</script>

</head>

<body>

<input type="text" name="textval" id="textval"><br/>

<input type="submit" value="submit" onclick="return validThis()">

</body>

</html>

Hello Friend use this code it will be useful. In most cases please use the ID instead of names that will be very useful for you

Regards
Ramanan Kalirajan

Mar 13 '08 #7

indirareddy

Hai This is Javascript Code

1 <html>

2. <head>

3. <script language="javascript">

4. function check()

5. {

6. var reddy = document.getElementById('textval').value;

7. if(reddy.value=="")

8. {

9. alert("Please provide some things");

10. return false;

11. }

12. return true;

13. }

14. </script>

15. </head>

16. <body>

17. <input type="text" name="textval" id="textval"><br/>

18. <input type="submit" value="submit" onClick="return check()">

19. </body>

20. </html>

Mar 13 '08 #8

vikas1111

122

100+

Hai This is Javascript Code

1 <html>

2. <head>

3. <script language="javascript">

4. function check()

5. {

6. var reddy = document.getElementById('textval').value;

7. if(reddy.value=="")

8. {

9. alert("Please provide some things");

10. return false;

11. }

12. return true;

13. }

14. </script>

15. </head>

16. <body>

17. <input type="text" name="textval" id="textval"><br/>

18. <input type="submit" value="submit" onClick="return check()">

19. </body>

20. </html>

Hi still it isnt working

Mar 14 '08 #9

gits

5,390

Expert Mod 4TB

hi ...

just use the code i provided above and fix the return as i stated in post #6 ... it will work :)

kind regards

Mar 14 '08 #10

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