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Q&A Order a subcollection from linq

If you are using .NET Core 5.0 or more you should be able to write something like the following (not tested): var data = context.TblOrder .OrderBy(o => o.OrderDate) .Select(o => ne...

posted 2y ago by Alexei‭ · edited 2y ago by Alexei‭

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#3: Post edited by

Alexei‭ · 2022-06-08T13:39:09Z (over 2 years ago)
not tested

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~~If you are using .NET Core 5.0 or more you should be able to write something like the following:~~
```c#
var data = context.TblOrder
.OrderBy(o => o.OrderDate)
.Select(o => new
{
Order = o,
OrderLines = o.TblOrderLine.OrderBy(ol => ol.ProductName)
});
```
The advantage of this approach is that you can specify the exact columns you need and the query will be more efficient (`Include` gets all the columns).[]()

If you are using .NET Core 5.0 or more you should be able to write something like the following (not tested):
```c#
var data = context.TblOrder
.OrderBy(o => o.OrderDate)
.Select(o => new
{
Order = o,
OrderLines = o.TblOrderLine.OrderBy(ol => ol.ProductName)
});
```
The advantage of this approach is that you can specify the exact columns you need and the query will be more efficient (`Include` gets all the columns).[]()

#2: Post edited by

Alexei‭ · 2022-06-08T13:36:31Z (over 2 years ago)
added more info

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If you are using .NET Core 5.0 or more you should be able to write something like the following:
```c#
var data = context.TblOrder
.OrderBy(o => o.OrderDate)
.Select(o => new
{
Order = o,
OrderLines = o.TblOrderLine.OrderBy(ol => ol.ProductName)
});
~~```~~

If you are using .NET Core 5.0 or more you should be able to write something like the following:
```c#
var data = context.TblOrder
.OrderBy(o => o.OrderDate)
.Select(o => new
{
Order = o,
OrderLines = o.TblOrderLine.OrderBy(ol => ol.ProductName)
});
```
The advantage of this approach is that you can specify the exact columns you need and the query will be more efficient (`Include` gets all the columns).[]()

#1: Initial revision by

Alexei‭ · 2022-06-08T13:35:37Z (over 2 years ago)

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If you are using .NET Core 5.0 or more you should be able to write something like the following:

```c#
var data = context.TblOrder
    .OrderBy(o => o.OrderDate)
    .Select(o => new 
    { 
       Order = o,
       OrderLines = o.TblOrderLine.OrderBy(ol => ol.ProductName)
    });
```

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