How do I write private set auto-properties in VB 10?

Question

in C#:

public string Property { get; private set; }

in VB?

Please vote or/and share your ideas!

albertjan · Answer 1 · 2009-06-10T06:40:18.423

9

Like this:

Private Thingy As Integer
Property Thing() As Integer
    Get
        Return Thingy
    End Get
    Private Set(ByVal value As Integer)
        Thingy = value
    End Set
End Property

Auto property in VB10

Property PartNo As Integer = 44302

But with a private set still can't be done in vb not even in VB10 see here:

From MSDN (as john said):

Property Definitions That Require Standard Syntax :

Specify different accessibility for the Get and Set procedure. For example, you might want to make the Set procedure Private and the Get procedure Public.

edited Jun 10 '09 at 06:40

answered Jun 09 '09 at 09:14

albertjan

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2

Shimmy is referring to automatic properties... I don't think this is one. – fretje Jun 09 '09 at 09:16
How do I write private set *auto-properties* in VB 10? – Shimmy Weitzhandler Jun 09 '09 at 09:24
@Shimmy, ask that as a question on itself and you are more likely to receive a proper response – Abel Apr 12 '10 at 15:16

fretje · Accepted Answer · 2009-06-09T11:50:45.783

5

I don't think that is possible (yet).

See this link on MSDN.
The above article even links to another one about mixed access levels.

I found this on Microsoft Connect, so they are thinking about it (If it will be for VS2010 that's another question).

edited Jun 09 '09 at 11:50

answered Jun 09 '09 at 09:14

fretje

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Would love to hear how the new mixed access level auto-props will look! – Shimmy Weitzhandler Jun 09 '09 at 09:28
If you read both articles you'll see that mixed access level auto properties will not be available in VS2010 – albertjan Jun 09 '09 at 10:49
In the last link you posted they're talking about a ReadOnly property this is a property 'without' a Set not a Private Set. So still no mixed access level auto properties in vs2010. – albertjan Jun 10 '09 at 06:39
Isn't a readonly property in vb equivalent with a private set in C#? You have to be able to set the variable somewhere, don't you? And as we're talking about auto-properties, being properties without a private backing field (or rather "with one that's generated on the fly"). – fretje Jun 10 '09 at 07:15
You do have to set the variable somwhere but the equivalent of a readonly property in c# is public string Property { get; } Which is impossible as it will be in vb. In the current vb autoprop syntaxt it is afaics impossible to make a private or internal set. If you read the article at your last post and see the proposed solution you'll see it's as I say. – albertjan Jun 10 '09 at 10:32
1

are you freakin kidding me? no auto properties in VB? This is another example of why I HATE VB.NET with a passion – PositiveGuy Jun 22 '12 at 14:00
@CoffeeAddict: Eurm... auto properties do actually exist in VB (see http://msdn.microsoft.com/en-us/library/dd293589.aspx). We're talking about auto properties with private set here... – fretje Jun 22 '12 at 14:27

score 5 · Answer 3 · answered Jun 09 '09 at 09:16

According to this MSDN article, you can't:

Auto-implemented properties are convenient and support many programming scenarios. However, there are situations in which you cannot use an auto-implemented property and must instead use standard, or expanded, property syntax.

You have to use expanded property-definition syntax if you want to do any one of the following:

[...]

Specify different accessibility for the Get and Set procedure. For example, you might want to make the Set procedure Private and the Get procedure Public.

How do I write private set auto-properties in VB 10?

3 Answers3

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