New EDMX column generates an error when calling ToList ()

Question

We have added a new column to the database table. The column is defined as follows:

Name: DisplayAsSoldOut
Type: Boolean
NOT NULLABLE
Default Value: 0

We updated our EDMX data model and the new column looks just fine. We work on the ASP.NET 4.0 platform using C #.

We have a class defined as a PagedList that inherits the IPagedList interface from List and implenents

In PagedList we have the following method:

protected void Initialize(IQueryable<T> source, int index, int pageSize, int? totalCount)
{
    if (index < 0)
    { throw new ArgumentOutOfRangeException("PageIndex cannot be below 0."); }

    if (pageSize < 1)
    { throw new ArgumentOutOfRangeException("PageSize cannot be less than 1."); }

    if (source == null)
    { source = new List<T>().AsQueryable(); }

    if (!totalCount.HasValue)
    { TotalItemCount = source.Count(); }

    PageSize = pageSize;
    PageIndex = index;

    if (TotalItemCount > 0)
    { PageCount = (int)Math.Ceiling(TotalItemCount / (double)PageSize); }
    else
    { PageCount = 0; }

    HasPreviousPage = (PageIndex > 0);
    HasNextPage = (PageIndex < (PageCount - 1));
    IsFirstPage = (PageIndex <= 0);
    IsLastPage = (PageIndex >= (PageCount - 1));

    if (TotalItemCount > 0)
    { AddRange(source.Skip((index) * pageSize).Take(pageSize).ToList()); }
}

When we reach the following line:

{ AddRange(source.Skip((index) * pageSize).Take(pageSize).ToList()); }

we get the following exception ...

Type: System.Data.EntityCommandExecutionException
Inner Exception: "Invalid column name 'DisplayAsSoldOut'."

I tried looking for this type of exception, but to no avail. The column displayed in the EDMX dataset is just fine. I even created a small throwaway program and imported EDMX for easy reading from the database, and it worked fine. Does anyone come across something similar?

, .

Answer 1

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