Showing Comma separated values from database in a textarea? - sql-server

Question

I have really searched and searched and not found an answer. Given that one article can have multiple tags, I want to show the tags as comma separated values so that it looks like Egypt, Sinai, Muslim Brotherhoodin a textarea when the article is edited. I'll post whatever code is needed if that will help in the answer.
My model is:
Partial Public Class be_Posts
<Key>
Public Property PostRowID As Integer
Public Property BlogID As Guid
Public Property PostID As Guid
<StringLength(255)>
Public Property Title As String
Public Property Description As String
<AllowHtml> Public Property PostContent As String
Public Property DateCreated As Date?
Public Property DateModified As Date?
<StringLength(50)>
Public Property Author As String
Public Property IsPublished As Boolean?
Public Property IsCommentEnabled As Boolean?
Public Property Raters As Integer?
Public Property Rating As Single?
<StringLength(255)>
Public Property Slug As String
Public Property IsDeleted As Boolean
Public Overridable Property be_PostTag As ICollection(Of be_PostTag)
Public Overridable Property be_Categories As ICollection(Of be_Categories)
End Class
And the be_PostTag model
Partial Public Class be_PostTag
<Key>
Public Property PostTagID As Integer
Public Property BlogID As Guid
Public Property PostID As Guid
<StringLength(50)>
Public Property Tag As String
Public Property be_Posts As ICollection(Of be_Posts)
End Class
I am working with an existing database and data and the models were generated from Code First From Database.
I realize I will need an EditorTemplate but beyond that I don't know what to do. How would I bind multiple values to a single textarea?
An image to show what i am talking about:

Answer 1

Solved:
Tossed this into an editor template:
#modeltype IEnumerable(Of BetterBlog.Core.Entities.be_PostTag)
#code
Dim sb As New StringBuilder
For Each x In Model
Dim tags = x.Tag & IIf(x.Equals(Model.Last), "", ", ")
sb.Append(tags)
Next
#Html.TextArea("PostTags", sb.ToString, 10, 50, nothing)
End Code