how to make combo box required field?

[maciek4]

I have a combo box with 6 options

Choose an option
1
2
3
4
5

and I want the user to rate it from 1 to 5, but when user selects option "Choose an option" I want an error message to be displayed saying that you have to select from 1 to 5. How do I force the user to select these options 1 to 5?

[qolbu]

you can javascript or php itself, here just an example

<form action="act.php">
<select name="s_name">
<option value="-1"> Choose an option </option>
<option value="1"> 1 </option>
<option value="2"> 2 </option>
<option value="3"> 3 </option>
<option value="4"> 4 </option>
<option value="5"> 5 </option>
<input type="submit" name="btn_submit" value="go">
</form>

then on act.php

if (isset($_POST['btn_submit']) && ($_POST['btn_submit']))
{
     if ($_POST['s_name']=="-1")
    { 
            echo "please choose the option";
            exit();
    }     

     else {
              // another action
     }
}

hope that help.

[maciek4]

It helped thanks. Now its working the way I wanted.

[boris_ph]

//javascript for validation ,put in header
<script language="javascript">
function validateSelect(form1)
{
if(form1.s_name.options[0].selected)
{
alert("Please select your rate!");
form1.s_name.focus();
return 0;
}

SubmitIt(form1)
return 1;
}
</script>

// code in body
<form name="form1" action="act.php" method="post" onSubmit="if(!validateSelect(this)) return false">
<select name="s_name">
<option selected="selected" value="-">Choose an option </option>
<option value="1"> 1 </option>
<option value="2"> 2 </option>
<option value="3"> 3 </option>
<option value="4"> 4 </option>
<option value="5"> 5 </option>
<input type="submit" name="btn_submit" value="go">
</form>

Codes above use javascript for validation,if 1-5 is selected,then will proceed to another/same file based on the php file you stated in action of form. Else, cursor will focus on the field to force user to choose a rate!
cheers😛

[bogu]

boris_ph wrote:

Codes above use javascript for validation,if 1-5 is selected,then will proceed to another/same file based on the php file you stated in action of form. Else, cursor will focus on the field to force user to choose a rate!
cheers😛

And if I stop JavaScript from my browser, I can submit without ratting ...