我有一个下拉列表，当我选择一个项目时，其categoryId被分配给文本框。然后我有2个复选框＆＃39; IsAnonymous＆＃39;和＆＃39; ShowReport＆＃39;。我想实现的是，文本框中的值为1，然后两个复选框都是可见的，当值为2时，则显示#Re;＆＃39; ShowReport＆＃39;必须隐藏复选框。
--data definition
declare @contactTable table (contactId int, linkContactId int)
insert into @contactTable values
(1,21),
(2,null),
(3,450),
(4,1),
(5,900),
(6,5),
(7,3),
(8,1)
--recursive cte
;with cte as (
(select 1 n, contactId from @contactTable
where linkContactId = 1
union
select 1, linkContactId from @contactTable
where contactId = 1)
union all
--this part might seem confusing, I tried writing recursive part similairly as anchor part,
--but it needed to joins, which isn't allowed in recursive part of cte, so I worked around it
select n + 1,
case when cte.n + 1 = t.contactId then t.linkContactId else t.contactId end
from cte join @contactTable [t] on
(cte.n + 1 = t.contactId or cte.n + 1 = t.linkContactId)
)
--grouping results by contactId concatenating all linkContacts
select n [contactId],
(select distinct cast(contactId as varchar(5)) + ',' from cte where n = c.n for xml path(''), type).value('(.)[1]', 'varchar(100)') [linkContactId]
from cte [c]
group by n
查看
javascript
var ReportDiv = $('#ReportDiv');
$('#cmbCategories').on('change', function () {
if ($(this).val() == '1') {
ReportDiv.hide();
}
else {
ReportDiv.show();
}
});
