Enumerate Linq Query result

Question

0.00/5 (No votes)

See more:

I have this query:

C#

var binstock = db.Bin_Material
	 .GroupBy(m => m.Material.Name)
	 .Select( g => new{Name = g.Key,Total = g.Sum(m => m.Qty)});
ViewBag.BinStock = binstock;
return.View();

When I access the result via the ViewBag in the .cshtml:

HTML

@foreach (var item in @ViewBag.BinStock)
 {
  <tr>
    <th>@item.Name</th>		
  </tr>
 }

I get an error: 'object' does not contain a definition for 'Name'

But I can see the "Name" and "Total" names in the intellisense.

What am I missing here?

Posted 23-Jun-13 23:04pm

Andy_L_J

Add a Solution

2 solutions

Solution 2

Cheers, here is what I did:

C#

//Helper Class
public class BinStockModel
{
  public string Name { get; set; }
  public double Total { get; set; }
}

and then in my controller:

C#

var binstock = db.Bin_Material
    .OrderBy(m=>m.Material.Name)
    .GroupBy(m => m.Material.Name)
    .Select(
        g => new {
	  Name = g.Key,
	  Total = g.Sum(m => m.Qty)
	});
var res = new List<binstockmodel>();
foreach (var item in binstock)
{
    res.Add(new BinStockModel{ Name = item.Name, Total = (double)item.Total });
}
return View(res);</binstockmodel>

And then in my View:

HTML

@model IEnumerable<storemanager.models.binstockmodel>
@foreach (var item in @Model)
{
    bintotal = bintotal + @item.Total;
    <tr>
        <th>@item.Name</th>
	<td style="text-align: right;">@item.Total</td>
    </tr>
}
</storemanager.models.binstockmodel>

Worked a charm.

Posted 24-Jun-13 0:34am

Andy_L_J

Comments

Zoltán Zörgő 24-Jun-13 7:08am

Actually this should work also:

var binstock = db.Bin_Material
    .OrderBy(m=>m.Material.Name)
    .GroupBy(m => m.Material.Name)
    .Select(
        g => new BinStockModel() {
	  Name = g.Key,
	  Total = g.Sum(m => m.Qty)
	});

return View(binstock);

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**Zoltán Zörgő** · Accepted Answer · 2013-06-23T23:13:00

In your select you defined anonymous objects. That's good, but than you pass the enumeration of anonymous objects to dynamic one that is passed to the view engine. The dynamic one has knowledge over it's fields so @ViewBag.BinStock will work. But the items in it are just anonymous objects - outside their context (anonymous types have method scope[^]), thus you can't access their fields directly. So: you either use named types, or play around with the dynamic types starting from here: Using Anonymous Types Outside of Local Context with Dynamic Keyword[^], or use reflection. But I suggest you take the first approach.