Question

I am sure i am doing something terribly wrong, but i should better ask the experts.

At the third line i get the error Value of type <anonymous type> cannot be converted to <anonymous type>

Dim Query = (From c In Db.web Select New With {.AA = c.AA}).ToList
Dim v = New With {.Amount = 108}
Query.Add(v)

What am i missing here?

Answer 1

Because you have named your fields differently (and maybe it has different type as well, I don’t know, cause I don’t know what type c.AA is), compiler has created different type for v, so you have 2 anonymous classes, with different fields (even if they have same type, but their name differs) and they are not compatible with each other.

I don’t know VB.Net well, but something like this:

Dim Query = (From c In Db.web Select New With {.Amount = CInt(c.AA)}).ToList
Dim v = New With {.Amount = 108}
Query.Add(v)

Should solve the problem, at least works in C#.