Was coding today in an application I support currently (Very large)...
Lesson learned --- When working with .edmx (Entity Framework)
1) Always ensure the project for the entity framework is a reference in your current project you need to use the entities for.
2) When using the "Using" statement create as follows:
'Note I shortcut contact with ctx
Using ctx As New nameOfEntity() ' Here is the key to this lesson nameOfEntity is the "Entity Container Name" listed under the properties for the .edmx model.
Very important. Remember this one.
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