Error when converting List to IEnumerable [duplicate] - asp.net-mvc-4

Question

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The model item passed into the dictionary is of type .. but this dictionary requires a model item of type
(7 answers)
Closed 5 years ago.
I am trying to display the default index page for a model. But I get the below error.
The model item passed into the dictionary is of type
'System.Collections.Generic.List 1[System.Boolean]', but this
dictionary requires a model item of type
'System.Collections.Generic.IEnumerable`1[EDIWebsite.Models.Error_Details]'.
Controller
public ActionResult FindRelatedBols(string bolnumber)
{
if (bolnumber == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
var error_Summaries = db.Error_Details.Select(r => r.BOL == bolnumber);
if (error_Summaries == null)
{
return HttpNotFound();
}
return PartialView("~/Views/Error_Details/Index.cshtml",error_Summaries.ToList());
}
View
#model IEnumerable<EDIWebsite.Models.Error_Details>
#{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
#Html.ActionLink("Create New", "Create")
</p>
<table class="table">
<tr>
<th>
#Html.DisplayNameFor(model => model.Source_System)
</th>
.
.
.
#Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |
#Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
#Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
</td>
</tr>
}
</table>

Answer 1

The error is self explanatory. Your view is strongly typed to a collection of Error_Details objects.Your current code is generating IQueryable<bool> as the type of error_Summaries variable and you are later calling the ToList() on that, which will generate a list of boolean values(List<bool>).
Your view is expecting something(IEnumerable<Error_Details>) and your action method is passing something else(List<bool>), hence getting that type mismatch exception!
You need to pass a collection of Error_Details objects to the view. I assume you wanted to pass a filtered list of items which is has the same BOL value as your bolnumber parameter. You can use the LINQ Where method to do the filtering.
var items = db.Error_Details.Where(a=>a.BOL == bolnumber).ToList();
return PartialView("~/Views/Error_Details/Index.cshtml",items);
Assuming the BOL property on Error_Details class is of string type.