I'd like to limit the number of selections a user can make in a
multiple select listbox. I have a note on the interface to say that
only x no. of items should be selected and I check the number server
side but I'd like to implement some javascript to do the same on the
client side. Ideally I'd like the javascript to work in IE5+ and
Netscape6+.
When using a select combo box that has multiple selections enabled, my server was not seeing it as an array. It was only seeing it as a single variable value. All I did to correct this was add [] and the end of the name attribute.
Ex.
[code]<select name="categories[]" id="categories" multiple="multiple"
size="4">[/code]
Now my LAMP server sees this variable as an array in the $_REQUEST
I have a page that displays a list of people playing in a tournament. I need to be able to generate a Leaderboard based on which players are manually selected by the admin. Next to each person there is a drop-down list. An admin can go in and select a "slot" that a player should be in on the leader board from 1 to 8, or leave it blank if none. What I need to figure out how to do is the following, when a change event happens on a drop-down list, and say the value 5 is selected, I need to check to make sure that 5 is not already selected in one of the other players drop-down lists, in other words, that the 5th leaderboard slot is not already full. if it is, display an error message and make them change that one first. how to do that with jQuery? I'm thinking it will have something to do with the each() function, but not sure exactly how the logic should work.
View 4 Replies View Relatedis it possible to limit the number of displayed items in a dropdown list? for example list of countries will display only 5 and people scroll down to see the rest of the list?
View 5 Replies View Relatedis there a way to select all values of a multiple select list by default?
View 3 Replies View RelatedI have a drop down with approx. 200 <option> elements, each option element has a value such as value="1", value="23", etc. Given a list of values, such as 5, 34, 43, 68, 123, how can pass those values to a function and then insert selected for each corresponding element?
View 2 Replies View Relatedi have a select element:
<select name="test1[]" size="5" multiple id="test1[]" >
and I have two radio buttons to enable/disable:
HTML Code:
<INPUT TYPE=radio NAME="f1" VALUE="option 1" (this.value)"><INPUT TYPE=radio NAME="f1" VALUE="option 2" (this.value)">
Javascript is as follow:
Code:
function Disab (val) {
frm=document.send;
if(val=="option 1") {
frm.test1.disabled=true;
} else {
frm.test1.disabled=false;}
}
It appears when I name the select element with '[]' it doesn't work. Is there another way to gather data from element via php or is there another way to identifiy the element to disable.
How do I ensure a number has no more than 4 digits and 2 decimal places (adds .0 or .00 as necessary) onblur using reg expressions?
View 8 Replies View RelatedI'm sorry if this question has been answered before, but I'm a real noob trying to understand Ajax and JavaScript.
Therefore I need a (simple) explanation how to pass multiple selections from a list to my Ajax-script - if there are any simple solutions.
I'm not using any kind of framework - just plain Ajax/JS, PHP and of course HTML.
Not a seasonsed JS user; I would like to have a number of dropdown forms on a page and have JS sum the total value up as the user makes their way down the page and selects values. I've googled the daylights out of this and come up with a proof of concept below - if I could get it to work right, I would apply to a larger page. It will live on a Sharepoint server so I can't just use PHP to handle the summing.
[Code]...
I wrote a short javascript code to try to solve a math puzzle. It involves iterating 50,000 times through a for loop. Nested in each of those iterations is another for loop with 50,000 iterations of its own. I think that's 2.5 billion altogether. Each times it compares two numbers that are being incremented.
I'm doing this in JS because I can't any of the Java I learned a few years ago...
I tested the code with much smaller numbers and it worked. With the big numbers my browsers are not responding, not surprisingly (I'm using the latest firefox on the latest mac os).
Will the code finish running tonight? Next week? In 10 years?
Have a dynamic table in JS that adds rows. Want a max of 8 rows. How can that be done?
[CODE]
<script language="Javascript" type="text/javascript">
function addRow()
{
[Code]....
I'm using the following code to display the latest threads from my vBulletin forum in my footer, however I'd like to limit the number of characters that are shown in the Thread title.
Can anyone show me what needs to be changed to say limit it to the first 20 or so characters?code...
I have a form with checkboxes. I have the results being stored as an array, that gets sent to a mysql database.
how can i limit the number of checkboxes selected? I am looking for a max of 15 selections.
i've been able to set the max when the checkboxes are not stored as an array, but for simplicity storing as an array is the way i need to go.
I've got the following almost working properly:
[Code]...
It will be included on the pages in the list and I'd like the list to remember the last selected (showing the user what page in the list they're on). I can't figure out how (other than manually doing it on every page).
The other thing is that the + and - buttons change the item selected for ALL select lists on a page, it's pretty cool but not what I'd like it to do. You can see it working on [URL]..
There will be a number of list boxes and other controls, with pop-up windows
to edit certain properties. It's the kind of thing I would normally have
done in VB but I want it to be browser-based. I've only used javascript for
trivial things before so this would be my first serious javascript
development. I would like it to run on all reasonably recent browsers.
The form starts with all the initial values being received from the server
(presumably just by pre-initialised data structures). The user tinkers with
it and when he is happy he presses 'submit' and the whole lot is submitted
to the server (presumably as a form post). This would be a few kb of data,
possibly 100 individual values but obviously in various data structures. I
guess there would be a few hundred lines of javascript code to manipulate
it.
My question is, is there likely to be a problem with manipulating and
sending this amount of data in Javascript. Sorry if this is a dumb question,
but like I said, I only used javascript for tiny programs before, so I'm a
bit unsure about its capabilities.
How would I add an if statement to limit the number input by the user to less than 20?
View 4 Replies View RelatedAwhile back I posted a script that was working fine in IE but not in Firefox. This is again my dillema with another piece of code.It is supposed to limit the number of characters accepted by a textbox.Here's the JS:
<script type="text/javascript">
function textCounter(field,cntfield,maxlimit) {
// if too long...trim it!
[code]....
I wanted to create a small DHTML code that created a unordered list of input forms dependent on the number selected from the select dropdown menu. Problem is that it doesn't seem to want to generate the list. I think the variables are within the scope of the function too, and I didn't get an errors from the javascript console when using firebug. The script itself runs, I tested it when I used the old standby alert(); to see if the script was active. Here's the code:
[Code]...
What I want to do it multiple the quantity ordered by the kind of shipping selected in my <select> list.
I'm pretty sure that what I've got to do is establishe a quantity ordered variable like this var qty = form["Q" + i].value And then multiply that qty variable by the ShippingCost. But no mater where I stick this var statement it always either stops the script cold or comes up as a black or undefined value.
<script type="text/javascript">
/* <![CDATA[ */
var ListCount = 5[code].....
I need help setting up a form, I want to do some pretty neat things: It will say: What countries do you want to visit? [FIELD] Part 1: I want that when a user starts typing into the field, it will suggest under things that match what you have typed so far, sort of like facebook search does. So I would need a list of recognized country names. Now for example imagine I was using this, and I typed in M, it would list under a max of 5 valid entries begining with M, if I typed in Me, it would list the ones begining with Me, if I typed in Mex, it would show Mexico. Now the user would have to click this drop down suggestion to choose it.Part2: I want once a user clicks on a suggestion, it will "pop under" the input box or somewhere, with a "x" beside it to remove it. The user can now type in another country, and when it is clicked it too appears as a sort of "icon" under the input box or somewhere, with an "x" beside it. Clicking the x removes the country from the current list of countries. Once he is done, he goes on to other fields and the selected countries remain visible. Once a user submits the form, I want to get only the countries that were visible to him.
**An alternative idea, if this one is too complicated, would be to have a drop list with all countries in it, and once a person clicks one, it will remain and a "+" sign will appear under it. When pressed, another dropdown menu will appear so the person can choose another country from the second drop down, etc. OFC all selected countries can have an X to remove them. Idk how to do this either. how to do something like this, where do you recommend I start? Any ideas? I tried searching but I'm not sure what to call this so I couldn't find anything in the search.
Wonder if there is a way to have my Drop-Down box selections create individule single row/dual colume tables for each item that was selected from the drop-down box. An example would be:
1: I selected 3 items from my drop-down box at one time (my drop-down box allows multiple selections).
2: I click a button call "Create Template" and three new single row/dual colume tables are created with the names if the items.
Here is what I have so far, but need a little help. Notice I have added the three tables in to show how it should look but this is for information only as these should be created automaticaly.
[Code]...
I have to create two dropdownlists that are dependent In my first select tag there are 4 selections ,,, year,quarter,month and week. and in second select it should automatically populate..If user select year from first select in second select values should be 1 to 365.. if quarter values in second select(dropdown) should be 1 to 4. if month 1 to 12 and if week is selected 1 to 7.
[Code]...
I'm trying to get my script below working. I've managed to get it to add fields dynamically but the remove function isn't right... and I can't think of a way round it. how can i incorporate a way for a limit on the number of fields that can be added?
<script type="text/javascript">
function addInput()
{
var x = document.getElementById("inputs");
x.innerHTML += "<input type="text" />";
}
function removeInput()
{
[Code].....
ah, i've just looked into the operators in more details and -= is just for numbers... so this won't work. i presume this is going to be the wrong method then.
I have a table that has parts with multiple characteristics. Part Number, Height, Width, Capacity, Price, Etc. I would like to have a drop downs for all of these values, when a user selects one of these values it will filter the results into a list. Ex. user selects a part that has a Height of 6 and width of 10 it will only list those parts. As I said earlier, I have a script that will give me all the parts, however I am not able to make the onchange list parts with multiple values.
View 9 Replies View RelatedI have a MySQL table with 90 columns and I want the users to be able to select any columns they concern and output the result accordingly. In the front-end, I can use a group of checkbox which looks very ugly and I can not setup the orders for selected columns. Is there a plug-in or some examples in jQuery, that I can make 2 parallel boxes (i.e. an original-box and a selected-box). the original- box lists all of the column names at the beginning and there is a way to move items between two boxes. And the order of items in the selected-box can be adjusted. the items in the selected-box will be used to build into an array in my backend code.
View 1 Replies View Related