multiple select box validation

[shanmugamit]

hi,

i am shanmugam.i am new to this forum.i need mutipe select box validation.


Thank you....

[acoder]

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[acoder]

i need mutipe select box validation.

What code do have so far? Post your code so we can work with that. Also explain exactly what kind of validation is required.

[shanmugamit]

sorry for the mistake....

here is my code.....
[HTML]var len=document.form1.select1.length;
for(i=0;i<len;i++)
{
if(document.form1.select1[i].value)
{
flag="false";
break;
}
}
if(flag==false)
{
alert("select value");
}[/HTML]
my error is object required

in php select1[] is name of select button
pls help.....

[acoder]

Threads merged. Please do not double post. Thanks!

[shanmugamit]

sorry for the mistake....

here is my code.....

var len=document.form1.select1.length;
for(i=0;i<len;i++)
{
if(document.form1.select1[i].value)
{
flag="false";
break;
}
}
if(flag==false)
{
alert("select value");
}
 

my error is object required

in php select1[] is name of select button
pls help.....
code

[hsriat]

sorry for the mistake....

here is my code.....

var len=document.form1.select1.length;
for(i=0;i<len;i++)
{
if(document.form1.select1[i].value)
{
flag="false";
break;
}
}
if(flag==false)
{
alert("select value");
}
 

my error is object required

in php select1[] is name of select button
pls help.....
code

What do you intend to do with this code?

[shanmugamit]

What do you intend to do with this code?

user select atlest one option...otherwise so alert msg....

[acoder]

Instead of

if(document.form1.select1[i].value)

use .selected to test for selection.

[shanmugamit]

any one help me for a select box validation how to validate pls.......help..............

<select name=selcie[] >
<option value="chennai">chennai</option>
<option value="Delhi">Delhi</option>
<option value="salem">salem</option>
</select>
 

[hsriat]

user select atlest one option...otherwise so alert msg....

Give selected attribute to one of the options you want to be default.

[shanmugamit]

Give selected attribute to one of the options you want to be default.

[HTML]Thank you for your response.acually i display selected option in database also. that is previosly selected option also display if i give selected any one it will create duplicate.
so i need any other solution pls.....[/HTML]

[hsriat]

Thank you for your response.acually i display selected option in database also. that is previosly selected option also display if i give selected any one it will create duplicate.

You need to work on your algorithm.

so i need any other solution pls.....

Look at post # 9

[acoder]

<select name=selcie[] >
<option value="chennai">chennai</option>
<option value="Delhi">Delhi</option>
<option value="salem">salem</option>
</select>
 

You also need to make this select element multiple, e.g. <select name="selcie[]" multiple> otherwise you won't be able to make multiple selections.