[英]Check if string does not contain strings of an array of string in C# in query from Entity Framework
我試圖獲得一個特殊的計數,我想刪除其中 userKeysActionsArray 是一個包含 integer 的字符串的結果,就像這樣(JSON 數組):[88254,8547,8569]
但是當我嘗試使用 contains 方法和 NOT 運算符刪除時,我無法獲得我期望的正確數字。
我不知道如何解決這個問題。
非常感謝你的幫助。
int count;
var query = (from a in _db.ApplicationSet
from h in a.ApplicationApprobationStatusHistorySet
from u in a.Mission.MissionUserSet
where a.Mission.isDeleted == false
&& a.Mission.isArchived == false
&& a.isRefused == false
&& a.ApplicationApprobationStatus.shortCode == "APPLICATION_APPROBATION_STATUS_LM_WAITING"
&& u.userKey == ContextUser.id
&& h.ApplicationApprobationStatus.shortCode == "APPLICATION_APPROBATION_STATUS_LM_WAITING" && h.isDeleted == false
orderby a.applicationDate
select new ApplicationCandidateListing
{
applicationKey = a.id,
missionKey = a.Mission.id,
candidateKey = a.Candidate.id,
statusKey = a.ApplicationStatus.id,
clientKey = a.Mission.Client.id,
candidateFirstName = a.Candidate.firstName,
candidateLastName = a.Candidate.lastName,
clientLabel = a.Mission.Client.name,
statusLabel = a.ApplicationStatus.label,
missionLabel = a.Mission.label,
applicationDate = a.applicationDate,
isCVreserveList = a.isCVreserveList,
isCVviewed = a.isCVviewed,
refuseDate = a.refuseDate,
isShortListed = a.isShortListed,
candidateGroupShortcode = a.Candidate.CandidateGroup.shortCode,
approbationStatusIcons = a.ApplicationApprobationStatus.iconCSS,
approbationStatusShortCode = a.ApplicationApprobationStatus.shortCode,
isInternal = a.Candidate.isInternal,
lineManagerKey = ContextUser.id,
userKeysActionsArray = h.userKeysActionsArray,
commentCount = a.ApplicationCommentSet.Where(ac => ac.isPrivateLineManager != true).Count()
}).Distinct();
string chance1 = "[" + ContextUser.id.ToString() + "]";
string chance2 = "[" + ContextUser.id.ToString() + ",";
string chance3 = "," + ContextUser.id.ToString() + ",";
string chance4 = "," + ContextUser.id.ToString() + "]";
var values = new[] { chance1, chance2, chance3, chance4 };
query.Where(q => !(values.Any(q.userKeysActionsArray.Contains)));
count = query.Count();
return count;
您可以在 foreach 中累積查詢條件:
var query = // redacted
string chance1 = "[" + ContextUser.id.ToString() + "]";
string chance2 = "[" + ContextUser.id.ToString() + ",";
string chance3 = "," + ContextUser.id.ToString() + ",";
string chance4 = "," + ContextUser.id.ToString() + "]";
var values = new[] { chance1, chance2, chance3, chance4 };
foreach(var value in values)
{
query = query.Where(a => !a.userKeysActionsArray?.Contains(value) ?? true);
}
return query.Count();
你可以這樣做 -
query.Where(q => !(
(q.userKeysActionsArray.Contains(chance1) ||
q.userKeysActionsArray.Contains(chance2) ||
q.userKeysActionsArray.Contains(chance3) ||
q.userKeysActionsArray.Contains(chance4))));
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