Write where condition inside Include in linq query

Question

The below query is returning error:

The property expression is not valid. The expression should represent a property access: 't => t.MyProperty'.

var list = this.DataContext
    .GetDbSet<Table1>()
    .Include(t => t.Table2.Where(i=>i.Active == true))
    .Include("Table2.Table3")
    .ToListAsync();

How can achieve the above query?

Answer 1

Filter cannot work in include. You need to download Z.EntityFramework.Plus.EFCore from nuget. And use code below

var list = this.DataContext
.GetDbSet<Table1>()
.IncludeFilter(t => t.Table2.Where(i=>i.Active == true))
.ThenInclude(x => x.Table3)
.ToListAsync();

Alternative one

var list = this.DataContext
.GetDbSet<Table1>()
.Include(t => t.Table2)
.ThenInclude(x => x.Table3)
.ToListAsync();
list.Table2 = list.Table2.Where(x => x.Active == true);