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(Updated: 2000.10.11 07:45:27 PM)
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This topic is intended to cataloge various topics of interest surrounding VB.NET.
There is a lot of information floating around in lists and on newsgroups, and now that the PDC, VBITS, and DEVCON have shown bits of the .NET framework, it seems like it's time to start developing a knowledge base of information. If you don't like the changes you see here, add your opinions to the VBDotNet Wish List!
Changes to syntax and semantics (being culled from ng and listservs):

THINGS THAT MS SHOULD CHANGE BACK TO THE WAY THEY WERE BEFORE VB.NET

Click here for the VBCompatability Changes list.

WHAT VB.NET HAS
  • Automatically resizable controls on Win Forms!
  • WebForms
  • Fully object oriented
  • True (AKA implementation) inheritance across languages
  • Application and Component interoperability across languages.
  • Visual inheritance
  • Full threading (see: VBDOtNetThreading)
  • Free threading
  • Function overloading
  • Ability to create console apps
  • LinkLabel control
  • Option Strict stops automatic casting of variables to 'smaller' types
  • BitAnd, BitOr and BitNot replace the existing And, Or, and Not for logical operations on numeric values
  • ReadOnly and WriteOnly keywords
  • 64 bit integers
  • Structured error handling
  • Centralized error handling
  • IDE macros
  • Same IDE as C++, C# and JScript
  • Same object model as C++, C# and JScript
  • Same runtime as C++, C# and JScript
  • Same forms package as C++, C# and JScript
  • Initializers (Dim X as Integer = 1)
    WHAT VB.NET CHANGED
  • Longs are ints and ints are shorts
  • Default values for Optional parameters are required
  • Variables are objects (but they don't have to be). An example would be great >g<. (See: Boxing And Unboxing)
  • Strings are objects (see: VBDotNet Strings)
  • Properties are passed byVal by default.
  • New menu editor, but it still can't add bitmaps
  • Ability to assign the same event procedure to multiple controls/events
  • And and Or include short circuiting, And, Or, and Not operate only on Boolean expressions
    WHAT VB.NET LOST
  • No variants (I never have to explain again why Trim$ is faster than Trim)
  • No more 'Option Base' - everything is zero-based, arrays (see: VBDotNet Arrays), collections, everything.
  • No Image control
  • No currency data type
  • Terminate event no longer reliable (see VBDotNet Garbage Collection)
  • No variants, but Object base type may substitute
  • No Gosub / Return commands
  • Ismissing is missing
  • No more default properties
  • No backward compatibility with VBScript and the ASP model
  • Can't vary the visiblity of accessors (public RO/friend write gone)
  • No control arrays (oops!)
  • No windowless controls
  • No LSet

    Comments/suggestions to other editors of this page
  • saying that "Not" includes short-circuiting makes no sense (changed)
    See also:
    VBDotNet Garbage Collection
    VBDotNetUnsafeCode
    VBDotNet Web Forms
    VBDotNet Win Forms
    VBDotNetCOMSupport
    ?ADO+
    ASP+
    Contributors: Nancy Folsom, Bob O ` Brien, Larry Serflaten, ZaneThomas, Greg Davis
    Category DotNet Category VBDotNet

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