Misleading details about Structure and With statement

[rskar-git]

[Enter feedback here] Per article: "When using a structure, you can only read the values of members or invoke methods, and you get an error if you try to assign values to members of a structure used in a With...End With statement."

That is not entirely true. For example, members of a structure used in a With...End With statement most certainly can be assigned:

Structure Xyz
    Dim x As Short
    Dim y As Integer
    Dim z As Long
    Dim u As Single
    Dim v As Double
End Structure

    Dim pdq(2) As Xyz
    With pdq(1)
        .x = 123
        .y = 4321
        .z = 999999
        .u = 1.23456
        .v = 123456789.87654321
    End With

This is behavior carried over from VBA/VB6 - user data types (e.g. Type Xyz in its syntax) could always be assigned this way.

However, the read-only behavior mentioned by the article does occur if the value-type in question cannot be regarded as something reference-able, e.g.

    With (pdq(1))  ' Note the parentheses - in VB.NET, this cuts all ties to the original reference-able source
        .x = 123  ' BC30068
       ' etc. ...
    End With

Hence, it's not so much "when using a structure", but "when using a structure returned by value from a function or property or operator".

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Document Details

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• ID: d4099464-c3a0-f9f0-ac92-04f15512e8ea
• Version Independent ID: 0fd42897-47a8-cb07-e8b1-458131eaf78d
• Content: With...End With Statement - Visual Basic
• Content Source: docs/visual-basic/language-reference/statements/with-end-with-statement.md
• Product: dotnet-visualbasic
• GitHub Login: @KathleenDollard
• Microsoft Alias: kdollard