Building dynamic select list - can I specify selected option? 1

LTeeple · Jun 8, 2005

Hi all,
My code loops through an array, assigning each value as an option to one select list. I always want "Choose time: " to appear in the select list, so before I enter the loop, I start with that option (index of 0).

From there, I start adding options to the select list:
var = new Option(value,index);

Is there a way in my code that I could ensure that any one of the values I add in will be selected when the select list is finished drawing?

I looked up options.selected but that seems to be used for retrieving values. option.selectedIndex seems to be used only for retrieving value of selected Option.

Any help is greatly appreciated.

[cheers]

Cheers!
Laura

tsuji · Jun 8, 2005

How about try this?
[tt]
oselect.options[oselect.length-1].selected="selected";
[/tt]
where oselect is the select element's reference. The index being oselect.length-1 because I assume here the new option being just created and is added as the last index --- otherwise, an obvious adjustment.

kaht · Jun 8, 2005

Laura, you can also use the values of the pulldown options. I typed up this example that allows you to type a value into a textbox and press the button, the pulldown is then set to that value (if it exists)

Code:

<script language=javascript>
function setPulldownOption(num) {
   document.forms["blahForm"].elements["blahSelect"].value = num;
}
</script>
<body>
<form name=blahForm>
<select name=blahSelect>
<option value=1>1
<option value=2>2
<option value=3>3
<option value=4>4
<option value=5>5
</select>
<br><br><br>
<input type=text name=blahText><br>
<input type=button value='Set as selected value' onclick='setPulldownOption(document.forms["blahForm"].elements["blahText"].value)'>
</form>
</body>

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

LTeeple · Jun 8, 2005

tsuji,

Thank you, your post was most helpful in solving my problem.

[cheers]

Cheers!
Laura

kaht · Jun 8, 2005

glad I could help

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

LTeeple · Jun 8, 2005

... sorry...

kaht, hopefully you know that I am always grateful for the time you take to respond to my questions!

[cheers]

Cheers!
Laura

kaht · Jun 8, 2005

It's ok, and it's not just you.

However (and especially lately it seems) when I or other experts here take the time to type up solutions to problems that posters have they go completely abandoned. For that reason I rarely even post in threads that already have a response. And that's a shame because often times there's more that can be added to a solution, or a completely different solution(and sometimes better, not necessarily this case - tsuji definitely knows his stuff). So, many times those solutions go unposted just because they often go ignored.

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

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Building dynamic select list - can I specify selected option? 1

LTeeple

Programmer

tsuji

Technical User

kaht

Programmer

LTeeple

Programmer

kaht

Programmer

LTeeple

Programmer

kaht

Programmer

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