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Posted to user@struts.apache.org by "heberraja@gmail.com" <he...@gmail.com> on 2017/11/20 13:30:28 UTC
s:select selected option from a list based on a condition
<s:select name='student'
list="students" listKey="sid" listValue="name"
value="defaultStudent.equals('true')"
/>
I have a select tag as above. The Student object has a boolean value defaultStudent with getter isDefaultStudent. How to pre-select the default student based on this boolean value. Value accepts only static value, not condition.
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Re: s:select selected option from a list based on a condition
Posted by Lukasz Lenart <lu...@apache.org>.
2017-11-20 14:30 GMT+01:00 heberraja@gmail.com <he...@gmail.com>:
> <s:select name='student'
> list="students" listKey="sid" listValue="name"
> value="defaultStudent.equals('true')"
> />
>
> I have a select tag as above. The Student object has a boolean value defaultStudent with getter isDefaultStudent. How to pre-select the default student based on this boolean value. Value accepts only static value, not condition.
value="%{#this.defaultStudent ? #this.name : '-1'}"
or
value="%{[0].defaultStudent ? [0].name : '-1'}"
Regards
--
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/
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Re: s:select selected option from a list based on a condition
Posted by Yasser Zamani <ya...@apache.org>.
On 11/20/2017 5:00 PM, heberraja@gmail.com wrote:
> <s:select name='student'
> list="students" listKey="sid" listValue="name"
> value="defaultStudent.equals('true')"
> />
>
> I have a select tag as above. The Student object has a boolean value defaultStudent with getter isDefaultStudent. How to pre-select the default student based on this boolean value. Value accepts only static value, not condition.
I think this approach would work:
IN YOUR ACTION
public Integer getDefaultStudentId() {
foreach(Student s : students) if(s.isDefaultStudent()) return s.getId();
return -1;
}
IN YOUR JSP
<s:select ... value="defaultStudentId" ...
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