Question

I have two module-level variables and Linq query. I want the results of the Let clause to change the global variables - is this possible?

For example:

Dim X As Integer = 0
Dim Y As Integer = 0
Sub One()
    Dim query = From e In <picture> _
                    Let X = e.@x _
                    Let Y = e.@y _
                Select <image X=<%= X %> Y=<%= Y %>><%= Two() %></image>
End Sub
Function Two()
    Return <X><%= X %></X>
End Function

What I need to do is assign X and Y in Sub One s query and then have the query automatically use those updated values in Function Two. The Let clause does not allow me to do this as that only sets in-query variables. Does anyone know a solution to this?

Answer 1

You could pass X and Y as arguments to the function Two() eg

Sub One()
    Dim query = From e In <picture> _
                    Let X = e.@x _
                    Let Y = e.@y _
                Select <image X=<%= X %> Y=<%= Y %>><%= Two(X,Y) %></image>
End Sub

Function Two(X as int, Y as int)
    Return <X><%= X %></X>
End Function

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