All Tags » VB » Bug (RSS)

Browse Blog Posts by Tags

Showing related tags and posts for the Blogs application. See all tags in the site

  • String.IsNullOrEmpty : update on that nasty null reference exception

    Back in April 2006, I blogged about a nasty JIT compiler optimisation that would cause String.IsNullOrEmpty to throw a null reference exception;  ironic really given that is the very thing you’d use the IsNullOrEmpty method to check against.  Well since then, due to popular demand on the connect...
    Posted to @ Head by bill on Tue, Mar 10 2009
    Filed under: Filed under: , , , , , , ,

  • Work around for MsChart 6.1.89.12 and 6.1.89.13 bug

    Last month (December 2008), Microsoft released some security updates for VB6 components such as the MS Chart control The first update http://support.microsoft.com/kb/932349 updates MS Chart to 6.1.98.12.  The second update http://support.microsoft.com/kb/957924   updates MSChart to 6.1.98.13...
    Posted to @ Head by bill on Thu, Jan 22 2009
    Filed under: Filed under: , , ,

  • VB.Net and splash screens

    One of the nice things about the My application framework in VB.NET is the ability to easily show splash screens.  The splash screen is displayed using a separate thread and by default will close when your main form’s Load event is called. There is however a quirk with it sometimes . Whilst testing...
    Posted to @ Head by bill on Mon, Jan 19 2009
    Filed under: Filed under: , , , , ,

  • More on XML Namespaces in VB....

    A couple of weeks ago I wrote about XML Namespace issues in VB: one in particular was to do with namespace declarations being repeated in the output X ML. In those cases we only looked at common namespaces for the entire document. However the example of creating a word document I posted earlier today...
    Posted to @ Head by bill on Sun, Dec 9 2007
    Filed under: Filed under: , , ,

  • Don't "p" on your XAttributes..

    If you programmatically add attributes with namespaces to an XElement, when the XElement is written out it will give each attribute a namespace prefix and then define a xmlns for that prefix. The way XElement does this is first it examines the namespaces already active and also those defined in the element...
    Posted to @ Head by bill on Mon, Nov 26 2007
    Filed under: Filed under: , , , ,

  • XML namespace prefix 'xmlns' is not defined

    When working with VB9 you may get this cryptic error : XML namespace prefix 'xmlns' is not defined If you are using only default namespaces you can fix this by including a definition for the xmlns as an Import statement or as an xmlns attribute on the XML literal. But if you are using prefixed...
    Posted to @ Head by bill on Sat, Nov 24 2007
    Filed under: Filed under: , , , ,

  • Cleaning up your XML literal namespaces

    If you use XML literals in your code, adding one to another: Dim e1 = <a:books></a:books> dim e2 = <a:book></a:book> e1.Add(e2) You will have the xmlns declaration repeated in each of the elements, when really it is only needed once per the document or outer element. The problem...
    Posted to @ Head by bill on Fri, Nov 23 2007
    Filed under: Filed under: , , , , ,

  • Bug in XML literals around the Imports keywords..

    In VB9, there's a bug when using XML literals with any type member that is a protected keyword. For example, given the following psuedo types, Class Doc Public Property [Imports]() As List( Of DocImports) End Class Class DocImports Public Property [Namespace]() As String End Class The following code...
    Posted to @ Head by bill on Tue, Nov 20 2007
    Filed under: Filed under: , , , , ,
Page 1 of 1 (8 items)