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假設我有3個表：Table Employee，EmploymentHistory和Languages。一名員工可以有很多語言和工作經歷。使用QueryBuilder的父子過濾器
員工
ID Name Email
1 AAA [email protected]
2 BBB [email protected]
3 CCC [email protected]
工作經歷
ID EmployeeID Company Position
1 1 Devon Energy aaa
2 2 Emric bbb
3 3 Capcom ccc
語言
ID EmployeeID Language Level
1 1 English Expert
2 2 Dutch Expert
3 3 Franch Expert
如何使用的ObjectQuery的QueryBuilder應用過濾器？例如：我想過濾德文公司的員工。它應該是員工「AAA」。
var emp = Translate(context.Employees.Include("EmploymentHistories"));
public ObjectQuery<T> Translate<T>(ObjectQuery<T> objectQuery)
{
objectQuery.Where("it.EmploymentHistories.Company = 'Devon Energy'"); // EmploymentHistories.Company is not found. How can I filter through it included property
}
注意：我正在使用QueryBuilder進行高級篩選。
最好的問候，
布賴恩