How to display data from related tables in View MVC4

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I have two tables: Category with Id,Name and Entry with Title,Name,Username,Password,CategoryId. So i want the output to be All Entries listed but with Category.Name at the end. EX.

ID Title Name Username Password Category
-------------------------------------------------------------

1 Facebook Peter Batman 123456 Social Network

So i have the Index method that returns list:

var query = from cat in _db.Categories
                      join en in _db.Entries on cat.Id equals en.CategoryId
          select new{
            CategoryId=cat.Id,
            Title = en.Title,
            Username =en.Username,
            Password =en.Password,
            Url = en.Url,
            Description = en.Description,
            Category=cat.Name
          };

           return View(query);

I have trouble how to use it in View. Any Help?

my View:

<table>
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.Title)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Username)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Password)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Url)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Description)
        </th>
        <th>
           // Here should be Category
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Title)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Username)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Password)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Url)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Description)
        </td>
        <td>
             // Here should be Category
        </td>
    
    </tr>
}

</table>

Posted 5-Oct-14 22:26pm

PetarS089

Updated 5-Oct-14 23:20pm

v3

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Pheonyx 6-Oct-14 5:56am

What happens when you do: @Html.DisplayFor(modelItem=>item.Category) ?

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nrgjack · Accepted Answer · 2014-10-06T00:35:00

you lack a ViewModel

your anonymous

C#

select new{
            CategoryId=cat.Id,
            Title = en.Title,
            Username =en.Username,
            Password =en.Password,
            Url = en.Url,
            Description = en.Description,
            Category=cat.Name
          };

should be an entity

for example a class called EntriesWithCateogories

C#

public class EntriesWithCateogories
{
 public int CateogiryId {get;set;}
 public string Category {get;set;}
 public string Title {get;set;}
 ...
}

then your query becomes

C#

var query = from cat in _db.Categories
                       join en in _db.Entries on cat.Id equals en.CategoryId
                       select new EntriesWithCateogories{
            CategoryId=cat.Id,
            Title = en.Title,
            Username =en.Username,
            Password =en.Password,
            Url = en.Url,
            Description = en.Description,
            Category=cat.Name
          };
return View(query.ToList());

and your View NEED at the top

C#

@model IEnumerable<EntriesWithCategories>

on the other hand you can create a real ViewModel that contains the list
ex :

C#

public class EntriesCategoryViewModel {
 public string PageTitle {get;set;}
 public List<EntriesWithCategories> List {get;set;}
}

and your controller code becomes

C#

var model = new EntriesCategoryViewModel();
model.Title = " my page title"; 
model.List = query.ToList();
return View(model);

and the view

C#

@model EntriesCategoryViewModel



@foreach (var item in Model.List)
{
    <div>@item.Category</div>

}