Learning Linq is going to be the death of me, hahahaha.
I have a large query to retrieve data for a report. I need to add a sub query to get related data into the result set. The data in the subquery is a float in the database. My error is "Cannot convert type 'System.Linq.IQueryable' to 'float'"
The query is:
var results = from d in db.Deliveries
join j in db.Jobs on d.Job equals j.Job1
join c in db.Customers on j.Customer equals c.Customer1
join ml in db.Material_Locations on j.Part_Number equals ml.Material into t1
from t2 in t1.DefaultIfEmpty()
join uv in db.User_Values on j.User_Values equals uv.User_Values into t3
from t4 in t3.DefaultIfEmpty()
where d.Promised_Date >= calFrom.SelectedDate && d.Promised_Date <= calTo.SelectedDate
where d.Remaining_Quantity > 0
where (t2.Location_ID ?? "") != "MSSICONSMT"
orderby d.Job, c.Name, d.Promised_Date
select new
{
d.Promised_Date,
d.Job,
LocationID = t2.Location_ID ?? "",
d.Shipped_Quantity,
d.Remaining_Quantity,
d.Promised_Quantity,
j.Unit_Price,
on_Hand_Qty = ((double?)t2.On_Hand_Qty) ?? 0.0,
Part_Number = j.Part_Number ?? "",
c.Name,
c.Ship_Lead_Days,
SafetyStk = t4.Decimal1 ?? 0.0,
ShipDate = d.Promised_Date.AddDays(-1 * (c.Ship_Lead_Days ?? 0)),
RemainValue = d.Remaining_Quantity * j.Unit_Price,
Balance = d.Remaining_Quantity > 0 ? d.Remaining_Quantity - (((double?)t2.On_Hand_Qty) ?? 0.0) : 0,
Consignment = ((float)(from x in db.Material_Locations
join jx in db.Jobs on x.Material equals jx.Part_Number
where jx.Job1 == d.Job
&& x.Location_ID == "MSSICONSMT"
select new {x.On_Hand_Qty}))
};
The problem is the "Consignment" line in the select. How do I deal with the anonymous type and get to converted into a float?
Thanks!
Try following :
Consignment = (from x in db.Material_Locations
join jx in db.Jobs on x.Material equals jx.Part_Number
where jx.Job1 == d.Job && x.Location_ID == "MSSICONSMT"
select new {qty = (float)x.On_Hand_Qty}).ToList();
Consignment = (from x in db.Material_Locations
where x.Material == j.Part_Number
&& x.Location_ID == "MSSICONSMT"
select (float?)x.On_Hand_Qty ?? 0.0).ToList()
and I had to add this;
newRow["Consignment"] = thisRow.Consignment.FirstOrDefault();
to store it in the datatable.
Thanks to all who nudge me in the right direction.
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