Question

Im trying get all my maingroups with its related entities. And i would also like to filter the BuildingPartData collection without affecting any of the other entities. I have pretty much tried every thing i can think of but with no luck.

 test.ContextOptions.LazyLoadingEnabled = false;

        var buildingPartMainGroups = (from buildingPartMainGroup in test.BuildingPartMainGroup
                                      from buildingPartSubGroup in buildingPartMainGroup.BuildingPartSubGroup
                                      from buildingPart in buildingPartSubGroup.BuildingPart
                                      from buildingPartData in buildingPart.BuildingPartData
                                      where buildingPartData.StatusPendingApprove == true
                                      //let buildingPartData = buildingPartMainGroup.BuildingPartSubGroup.Where(x => x.BuildingPart.Any(o => o.BuildingPartData.Any(y => y.StatusPendingApprove == true)))
                             select new
                             {
                                 BuildingPartMainGroups = buildingPartMainGroup,
                                 BuildingPartDatas = buildingPartData

                             }).ToList().Select(c => c.BuildingPartMainGroups);

        foreach (var bb in buildingPartMainGroups)
        {
            foreach(var tt in bb.BuildingPartSubGroup)
            {
                foreach (var oo in tt.BuildingPart)
                {
                    foreach (var ww in oo.BuildingPartData)
                    {
                        bool tes4t = ww.StatusPendingApprove;
                    }
                }
            }
        }

Here is the model

http://mimo-design.com/model.png

Cant insert images yet..

var buildingPartMainGroups = test.BuildingPartMainGroup.Include("BuildingPartSubGroup.BuildingPart.BuildingPartData").
                                        Where(bpmg => bpmg.BuildingPartSubGroup.
                                            Any(o => o.BuildingPart.
                                                Any(x => x.BuildingPartData.
                                                    Any(u => u.StatusPendingApprove == true))));

It only filtered my BuildingPartMainGroup entity. I would like to have all my BuildingPartMainGroup entities, with a condition / filter on BuildingPartData

Answer 1

Did you already think of something like:

context.BuildingPartMainGroup
 .Inlcude("BuildingPartSubGroups.BuildingParts.BuildingPartData")
 .Where<BuildingPartMainGroup>(bpmg => bpmg.BuildingPartSubGroups.Any<BuildingPartSubGroup>(etc...