Hello,
In drop-down list (Select - Simple), is there a way to limit the number of selected subjects/options to only 2 ?
If there is a way, than how ?
Thank you all,
Ofer.
Hi Ofer1984,
This works only with drop-down lists from type multiselect. With Seblod and a little jQuery-snippet in your creation form - click on the orange button, at the end of this form, in section Script (JS) you have to put this code (first line and last line not necessary):
$(document).ready(function() {
var maxselected = 2;
var selection = null;
$('#your_select_multiple').change(function(event) {
if ($(this).val().length > maxselected) {
$(this).val(selection);
} else {
selection = $(this).val();
}
});
});
Best regards
Castor
Remark: your_select_multiple is the Name * from your multiple-select field
Hi Castor,
Thank you so much. I wouldn't have done it without your help :)
Regarding the last question, since I have info in my database, will something get lost if I apply these changes ?
For example, if the drop-down list that I have contain 3 values: A, B, C. and I chose the value A > then I converted the list into a multiselect > Will it still remember the value A that I chose before the conversion (or will it delete/reset the drop-down list's info) ?
Thank you again,
Ofer
generally there is no risk if the field is not a joomla core field. Never change the core fields! In your case it makes no difference multiselect or not.
In case of multiselect a single-value is stored in the same way as a single-value from a simple-select in this form: A. From two values all values are stored with the separator (standard: comma) in this form: A,B,C - after the change of type avoid to change the separator.
In order to find your entries in your searchform you have to use button 3 (Match + Stage) under Words | Any Words for OR or Words | Each Words for AND in your query. For multiple never use ... Exact
When changing type from multiple to simple you will have problems with matching your entries. For this reason, you should not use more ... Exact also
Best regards
Castor
Hi Ofer1984,
To respond to your last question:
When you change the simple to multiple dropdown field, you will find the value stored with the simple drop-down field.
Regards,
Mehdi.
Thank you very much ! :)
These explanations helped me a lot !
