Checking required fields in javascript...

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September 28th, 2004, 05:37 PM

mikeparis

Join Date: Apr 2007

Location: St.Catharines, Ontario

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Checking required fields in javascript...

Hi there, I'd like to add support to this function in the form of checking "select" fields.

Currently, this code looks to see if an input tag has the id "required" and tests for a zero length.

I've tried adding the "select" inputs into the conditional statement, to no avail.

Can someone give me a hand to sort this out?

Thanks.

Here's the code (I will try to get it smaller)

Code:

		function checkrequired(which){
		var pass=true
		if (document.images){
			for (i=0;i<which.length;i++){
				var tempobj=which.elements[i]
				if (tempobj.id=="required"){
					if (((tempobj.type=="text"||tempobj.type=="textarea")&&tempobj.value=='')||(tempobj.type.toString().charA  t(0)=="s"&&tempobj.selectedIndex==-1)){			
						pass=false
						break
					}
				}
			}
		}

September 28th, 2004, 07:12 PM

brut

Join Date: Apr 2007

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RE: Checking required fields in javascript...

As long as you have 'Select one...' or somesuch as your first option, just change your '-1' to '0'.
And add one more closing brace.

September 28th, 2004, 07:32 PM

mikeparis

Join Date: Apr 2007

Location: St.Catharines, Ontario

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RE: RE: Checking required fields in javascript...

Quote:

As long as you have 'Select one...' or somesuch as your first option, just change your '-1' to '0'.
And add one more closing brace.

Sorry could you clarify that for me please.

I'm not very proficient with javascript, I am under the impression that I'll need to create some code like this:

Code:

if (((tempobj.type=="text"||tempobj.type=="textarea"||tempobj.type=="select")&&tempobj.value=='')||(tempobj.type.toString().charA  t(0)=="s"&&tempobj.selectedIndex==0)){

Is this what you describe?

My first option in the html code is along the lines of "Select Option" and has a value of '', for example:

<select name="selectInput">
<option value=''>Select an Option</option>
<option value="option1">OPTION 1</option>
<option value="option2">OPTION 2</option>
</select>

Theoretically, I want the function to return the var 'pass' as false if option 1 or option 2 are not selected.

Thanks in advance for lending a hand.

December 14th, 2005, 02:45 PM

Anonymous

Registered User

Codewalkers God 35th Plane (22000 - 22499 posts)

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RE: Checking required fields in javascript...

Quote:

Code:

		function checkrequired(which){
		var pass=true
		if (document.images){
			for (i=0;i<which.length;i++){
				var tempobj=which.elements[i]
				if (tempobj.id=="required"){
					if (((tempobj.type=="text"||tempobj.type=="textarea")&&tempobj.value=='')||(tempobj.type.toString().charA  t(0)=="s"&&tempobj.selectedIndex==-1)){			
						pass=false
						break
					}
				}
			}
		}

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