JQuery :: Remove Some Options From A <select> But Get It By Name?
Jun 14, 2009
i need to remove some options from a <select> but i need to get it by name
so i have
<select name="imageList">
<option>test1</option>
<option>test2</option>
<option>test3</option>
<option>test4</option>
<option>test5</option>
<option>test6</option>
i know i need to use the .removeOption("test4"); to remove it but i dont know what to use so it selects the imageList <select>
I am trying to make a simple code that has a selection list (with the choice fruit or veggie). When the user chooses fruit, the second list displays the options apple, orange, banana. When the user changes their choice to veggie, the second select list then contains carrot, corn, potatoes (and the apple, orange, banana disappear).
Tried doing this a few different ways but it seems no matter what I do the last option won't remove for some reason.. if it's the only option, it won't remove either. as it's the last one.code...
I'm using ajax to update options in several select forms.Its basically, like in most automotive applications, there is a drop down for brand...once selected, it will populate another select form with the "makes" of that brand. Once a make is selected.. it returns the models of that make... and ect...The program works fine for one selection. When one brand is selected, a second select box is populated with the correct makes of cars that brand produces, however, if the brand is changed, the select box with the makes of the cars is populated by the original query..twice... and then the second query. Looking for help on whats the best way to clear both the results array; i was using this...
autobrandsf.length = 0;
and also clear out the select box, which is what the removeAllOptions() function is for. As it stands, if i use the removeAllOptions(), the makes are never populated.Here is my code, broken down the best i could, in order of process.. ish.A select form that shows the brands is displayed, once a choice is made, it passes the value of the choice into this function, which will query the database
// this is the function that is called once a brand is selected: // h = the brand passed.. function carBrandCheck(h){[code]....
This is where, the query is returned, each row is split into an individual array, and then the second element of those individual arrays are put into yet again another array.The elements of that array are then compared against eachother to make sure there are no duplicates, storing the non-duplicates into a new array. The final array is then passed into a select form, for the makes of the selected brand.
// the ajax handler: function handleWorkResponse(){ if(xmlHttp.readyState == 4){[code]......
While appending the option-elements to the targetselect the original option-elements disappear (exactly at step of line 13). This is unwanted behaviour.
I am looking to create a set of three combo boxes with around 15 options in each. If an option is selected in one of the three boxes, it is removed as an option from the others.
I've been having problems getting my select option to change the options of another select option. I'm not much of a javacsript coder, so I'm at a lost.When I select the first option nothing appears in the second option.
Is it possible to reorder the options in a form select box with jQuery, either by drag and drop or by up and down arrows/controls?I have a form select field that users use to choose an item to edit. I'd like users to also be able to reorder items in the select box to change their display order.In the end, I'll likely send order changes to the server via AJAX.
I currently have a form that the checkboxes are automatically populated. There is over 1000 checkboxes in total, 48 of these checkboxes are designed as main topics, when the checkbox for one of these 48 are ticked, it checks all sub catergory checkboxes as well as populates a <select><option> multiple list with its value. When unchecking one of the 48, it unchecks all its sub categories and removes them from the <select><option> multiple list.
The problem I am having is, when i select one of the 48, which populates the multiple list option and checks all sub categories... i go to uncheck one in the sub categories, which successfully unchecks the main category (as it indicates they are not all selected). It also successfully removes the sub category from the multiple select option list and its main category (which became unchecked).
When I go back to check the main category which makes all the sub categories checked... it re-populates the <select><option> multiple list with the values creating duplicates. I need a proper way of when I check a box, it scans the multiple <select><option> list to see if it already exists, then adds it again if it is not there. I have tried the following jquery:
but it seems the length always comes out 0 (zero). I need a fast and efficient way of doing this there is over a 1000 checkboxes that can be checked and need to populate this list.
I'm not sure if my term usage is correct, but using a select form field with various options. I would like that when an option is selected, a php query is performed, and the rest of the form is updated according to the selection based query.
I have two multiple selects on my page. One gets updated via ajax whenever the user filters data (we'll call that select "#select-1"), when they select options from that it then gets moved into the other select (we'll call that "#select-2"). That is all working fine but I'd like to refine it so that they can't select the same data twice.
So, basically, what I'd like to do is add logic within the ajax call to only update the select options in (#select-1) if it does NOT exist in the other select (#select-2).
I have no clue where to even begin with this....do I need to store the val's in an array and then search for each one in the other?
I have a long form in a tabbed interface, where I want to count the non blank fields on each tab (the form fields are text and checkbox inputs and multi & single select fields). The counting function is as follows:
// Input argument is a tab object function countFieldsOnTab(obj){ var counttext = obj.find('input:text[value!=""]').length;
[Code].....
The counts of text, checkbox and multi-select fields works, but the single select count doesn't return what I want. The default option in single selects is a default where the value is blank "<option value="">-- make a selection -- </option>. These will be found as selected options.
How do I count only those options have have a non-blank selection?
I am populating a number of Select boxes on the server-side with a large number of options. I'd like to get the response size down without taxing the client browser too much. What do you think is the most efficient way to approach this problem?
Here are some considerations: The option text/values do not change very often, but could potentially change in the future. The page that holds the select boxes should never be cached, there are other aspects of the page that need to remain fresh. Firebug with YSlow is saying that the primed cache size of the page is 300Kb with all the select dropdowns and options, if I remove the options, the primed cache size of the page is 80Kb. I am considering breaking out the text/value pairs for the select boxes into a separate file that is cache-able calling it "valueTextPairs.js" and referencing it with a query string and some sort of server-generated MD5 hash of the data, so that if any of the values change, the client's cached version will be replaced by the latest version. Like so:[URL]...
Provided I do this, I anticipate that the primed cache size of the page will be reduced down to 80Kb (which I like) -- however, before I take the plunge, I am curious what you all think the performance effect will be?
I know the number of bytes on the wire will be reduced, but will this put a lot of additional pressure on the client's browser because I'd need to traverse the name/value pairs and add the options to the select boxes dynamically on the client end? If it seems reasonable to do this, what jQuery approach would be the most efficient? $('#selectId').html(options) with options = one big string? Adding each child option to the select in a loop? Something else?
Some client end folks are using IE6 so I am trying to tax the browser as little as possible, while also reducing the size of each request, trying to find a happy medium..
Since its not multiple its not going to show all the 3 options selected, so I created a little button with the easy statement in JQuery it is working, it makes the Select Multiple, it expands the Select and make the items selectable, but on the other hand it does not show the already selected options.
How do you folks handle <select> lists with no default option selected? I have mocked up a simple sample but in reality I may have a dozen different categories. (Link:Do you disable all other hidden <select> elements so that their values are not sent in a POST request?
The user must bem select options in this 4 files in order, for example, he must bem select first "First Choice" next "Second Choice"... The options not be same.
I've been playing around with the following code for days already and still in the dark tunnel. Can someone tell me what's wrong with the way I've coded it?
var cell1 = row.insertCell(0); var selOpt = document.createElement('input'); selOpt.setAttribute('type', 'select'); selOpt.option = document.forms[0].Country.option; selOpt.setAttribute('name', 'AnotherCtry'); cell1.appendChild(selOpt);
<edit>What I'm trying to do is to copy the options of the Country to another select which I've allowed the users to 'add' to the current row.</edit>
I have a select and list of options. I have onkeypress event on the select input. As the user types I am trying to match the entered key strokes to the entries in the options and setting the selected value to the first match.
The problem I am facing is this: My options have 10000,0000, 10001, 1111,0001. Say I type 10, with less than one sec delay I consider them as one unit. So I try to find whether there are any entries in the options which starts with 10 and setting the value. But brower is considering the last entered key stroke , in this example 0 and setting the 0000 which is the first match.
Is there any way that I can stop the browser from doing that or any idea?
I've searched the web and every tutorial I can find says the same thing, and I am doing what they say, but it's inexplicably not working. Basically, I'm using a nested object to populate a select box using the new Option() method. Unfortunately, when I include the new Option line, it breaks the loop and does not add anything.