Question

I have the following code:

Using dbContext As pbu_housingEntities = New pbu_housingEntities
        ' First, delete all current records associated with the specified semester.
        Dim delete_old = (From p In dbContext.Residents _
                          Where p.semester = txtDestSemester.Text _
                          Where p.year = txtDestYear.Text _
                          Select p)
        dbContext.Residents.DeleteObject(delete_old)
        dbContext.SaveChanges()
End Using

But it doesn’t work. It throws an unable to cast object of type ‘System.Data.Objects.ObjectQuery’ error. Any thoughts?

All I’m trying to do is grab a list of rows with specified conditions and then delete all the rows returned.

Answer 1

In delete_old could be more than 1 item.

Add a ToList() and iterate over each entry and call the DeleteObject method for each enumerated item.