Question

javascript + database + select

Asked by: tinti

Hello!
I have a database with a table like this
ID Name Hobby Age
1  John   sport  23
2. Mary  music  21
3. Dave  movies 25
4. Jabe  reading  22
And in my php page i have 2 selects and one text box
I put in select1 and select2 values Name and Hobby, text box is read only
What i want is
When i select something from select 1 automatically in select 2 will be select coresponding value and in text box same thing (age)
Of course when i select something in select 2 same thing to be happend in select 1 and text box
example.
if i select mary (select 1) in select 2 will appear music and in text box 21
if i select movies (select 2) in select 1 will appear Dave and in text box 25
Thanks
p.s. All values i use is distinct (will not be 2 persons with same name or hobby)

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Asked On
2006-03-02 at 01:53:38ID21757586
Tags

database

,

javascript

Topic

JavaScript

Participating Experts
2
Points
150
Comments
4

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Answers

 

by: Si_HibbardPosted on 2006-03-02 at 04:08:56ID: 16083911

Heres a basic example which you can modify. it could be improved for ease of re-use if you wanted by looping through all the objects on the page and identifying and id staring with "sel" and setting its selectedIndex value. Otherwise just add the elements as the example shows eg

add where *

in the javascript:

  sel = document.getElementById("sel*");
  sel.selectedIndex = objIn.selectedIndex;

In the html:

<select onChange="updateSelected(this);" id="sel*">
<option value="1">sport</option>
<option value="2">music</option>
<option value="3">movies</option>
</select>

----------------------
Example code:
----------------------


<script type="text/javascript">

function updateSelected(objIn)
{
  var obj, sel;
  //alert(objIn.value);

  sel = document.getElementById("sel1");
  sel.selectedIndex = objIn.selectedIndex;
  sel = document.getElementById("sel2");
  sel.selectedIndex = objIn.selectedIndex;

}
</script>
<select onChange="updateSelected(this);" id="sel1">
<option value="1">john</option>
<option value="2">mary</option>
<option value="3">dave</option>
</select>
<select onChange="updateSelected(this);" id="sel2">
<option value="1">sport</option>
<option value="2">music</option>
<option value="3">movies</option>
</select>

 

by: tintiPosted on 2006-03-02 at 06:55:40ID: 16085122

seems i was a little unpreciss with my explication
name,hoby,age is only for example, i want to use any records from database, so if you are so kind to explain all the process
thx

 

by: Si_HibbardPosted on 2006-03-02 at 07:13:42ID: 16085292

I see, sorry I overlooked the combination with the database read - this then does become much more difficult .. will have to think on it

 

by: MqRyPosted on 2006-03-02 at 08:03:41ID: 16085811

Hi tinti,

Here is simple way

function setAll(sayi) {
  sel1.selectedIndex = sayi;
  sel2.selectedIndex = sayi;
  sel3.selectedIndex = sayi;
  ...
  seln.selectedIndex = sayi;
}

and put to selects this code;
<select name="sel1" onchange="setAll(this.selectedIndex);">
  ....
</select>


Good Luck ;)
MqRy

20120131-EE-VQP-002

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