if checkbox chkAus checked :
if (chkAus.Checked)
{
vAdvanceSearchResults = (from t in vAdvanceSearchResults
join imp in _bDataContext.Imprints on t.ImprintID equals imp.ID
join cc in _bDataContext.CountryCodes on imp.CountryID equals cc.ID
where cc.Code.Contains("AU")
select t).Distinct();**
}
if chkAus and chkNz are checked
if (chkNz.Checked && chkAus.Checked)
{
vAdvanceSearchResults = (from t in vAdvanceSearchResults
join imp in _bDataContext.Imprints on t.ImprintID equals imp.ID
join cc in _bDataContext.CountryCodes on imp.CountryID equals cc.ID
where cc.Code.Contains("AU") || cc.Code.Contains("NZ")
select t).Distinct();
}
The condition on linq query changes as the checkboxes are checked.
where cc.Code.Contains("AU") || cc.Code.Contains("NZ")
I have nearly 10 checkboxes, and got stuck on how to write that many conditions. Any help please.
for example if there is chkUS : then the combination with chkAus,chkNz,chkUS checkboxes the linq query would change.
where cc.Code.Contains("AU") || cc.Code.Contains("NZ") || cc.Code.Contains("US")
Put all of them in a list and then do a if list.contains(cc.Code)
var a = new List<string>(){"AU","NZ","US"};
var linq = (from t in vAdvanceSearchResults
join imp in _bDataContext.Imprints on t.ImprintID equals imp.ID
join cc in _bDataContext.CountryCodes on imp.CountryID equals cc.ID
where a.Contains(cc.Code)
select t).Distinct();
Create a list of selected checkboxes first. Like this.
var selectedCountries = new List<string>();
if (chkAus.Checked) selectedCountries.Add("AU");
if (chkNz.Checked) selectedCountries.Add("NZ");
if (chkUs.Checked) selectedCountries.Add("US");
//... And so on
And then modify your linq query to check whether this list contains the code or not, I mean reversing the comparison is an answer. Make sure you remove if condition for this linq query.
vAdvanceSearchResults = (from t in vAdvanceSearchResults
join imp in _bDataContext.Imprints on t.ImprintID equals imp.ID
join cc in _bDataContext.CountryCodes on imp.CountryID equals cc.ID
where selectedCountries.Contains(cc.Code)
select t).Distinct();
This will fix your problem.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.