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POViewModel QueryException using objects
primarykey
Id
5501905
data
AcceptedAnswerId
0
AnswerCount
1
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2011-03-31T14:59:00.967
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0
LastActivityDate
2011-04-12T12:31:41.073
LastEditDate
2011-04-12T12:31:41.073
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552422
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552422
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PostTypeId
1
Score
1
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164
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text
Body
Hy Guys. I have 2 entities: "Interactions" and "Orders", which has many "Interactions". On View, I wanna a different class (like <code><tr class=@cssClass></code>) for the Orders which has interactions unread. So I created a ViewModel. My ViewModel: <pre><code>public class OrderViewModel { public Order Order{get;set;} public bool isRead{get;set;} } </code></pre> My controller (I'm working with repositories): <pre><code>var orders = orderRepo.All(); var viewModel = orders.Select(order=> new orderViewModel { Order = order, '<------------' isRead = order.Interactions.Any(x => x.Read == true), }); return View(viewModel); </code></pre> If I take out the <code>Order = order,</code> It works fine. But with this code I'm getting this error: <blockquote> QueryException was unhandled by user code. Could not instantiate: Models.OrderViewModel InnerException: When casting from a number, the value must be a number less than infinity InnerException: Make sure the source type is convertible to the destination type. <hr> </blockquote> If, instead of use the objects I use their properties, it works fine: <pre><code>ViewModel: public int IdPedido { get; set; } public string CategoryOrder { get; set; } public string ModuleOrder { get; set; } Controller: var viewModel = orders.Select( order => new OrderViewModel{ CategoryOrder=Order.Category, ModuleOrder=Order.Module, ...}); </code></pre> What am I missing? I'm not understanding what should be convertible. Or isn't possible to use Objects on ViewModel, only Properties? If it's a usable information, I'm using the Nhibernate ORM. Tks guys! <hr> EDIT Based on @elspiko question, I realized that Order and Orders didn't have the same type. So I set orders: <code>IEnumerable<Order> orders = pedido.Repo.All();</code> And now it's working. I thought it would work before editing. Why was it considered different types?
Tags
<asp.net-mvc>
Title
ViewModel QueryException using objects
singulars
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1. This table or related slice is empty.
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1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USThiago
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1. USThiago
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. PO
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1. VO
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 POViewModel QueryException using objects
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1. CO+1, because `IsReaded`
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 POViewModel QueryException using objects
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 USsmartcaveman

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.