vb.net - I can't understand what means this line of code -

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I am reading an old code written with VB and I do not understand that it means that the code This line is 

  CType (cache ("table"), array) (CINT ("LG"), 0) = myValue

Also please help?

Set a multi-dimensional array using values ​​derived from this cache object Used to be.

Another readable code can be something like this: 

  form an array of arrays = sitep (cache ("table", array) in the form of dim introservation In integer = CINT (cache ("LG")) your intent (intposition, 0) = myValue

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