Possible Duplicate:...Conditional Linq Queries...Entity Framework 4.0 use...This is the search condition I have....Users may narrow their search results using four fields. The circumstances are all...AND...
. If the textbox value is false, the result must not include the matching filter....String.Empty...
or ...All... is the dropdown list's value. ...
With POCOs, I use EntityFramework....
Assume my POCOs are specified as follows (simplified):...class Class1
{
public int ID;
public int SomeNumber;
}
class Class2
{
public int ID;
public int SomeNumber;
}
class Class3
{
public int ID;
public int SomeNumber;
}
class SomeClass
{
public int ID;
public int? Class1ID;
...
With the help of the EF generic repository, I can do this function....public IEnumerable<T> Query(Expression<Func<T, bool>> filter)
{
return objectSet.Where(filter);
}
...It's functioning well, and I've used this method in a similar class before:... private void BindProbabationPeriod()
{
ddlProbabationPeriod.DataSource =...
No EF command updates the child automatically....AddOrUpdate...
is same, it checks for the presence of the top-level object inside (...Junk...
in your instance) and, if it doesn't, create it or edit it. In this situation, the introduction of children is a side consequence since when...AddOrUpdate...
call internally...Add...
the whole object tree is...
In order to process data, I need to LINQ combine two entities in my MVC application....For that, I'm attempting to formulate the question as,...from enumeration in db.Enumerations
join cust in db.Customers on ( enumeration.Value equals cust.lkpStatus &&
enumeration.EnumerationTypeID.Contains('Cust')
...But this query is giving me trouble, so...
In a C# project, I'm utilizing EntityFramework 6.1.3 and SQL Server.
Two of my questions should essentially accomplish the same thing....1....Exams.GroupBy(x=>x.SubjectID).Select(x => x.OrderBy(y => y.Level.NumericValue).FirstOrDefault(y => y.Date.Value > DateTime.Today))
...2....Exams.GroupBy(x=>x.SubjectID).Select(x => x.Where(y => y.Date.Value >...
