Here is a link to an article by Bruce Armstrong (since broken) relating to new functionality in PB11.5. The article specifically deals with FDCC (Federal Desktop Core Configuration) Compliance in PB apps and specifically the SHGetFolderPath Windows API function. Although this information has been available for awhile, it’s worth noting again. Usage Notes: function ulong SHGetFolderPath(ulong hwndOwner,…
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PowerBuilder – Finding special folders – FDCC Compliance
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PowerBuilder – More Datawindow Mouseover Effects
So I download the latest Chrome browser beta the other day (v17) and I notice a neat effect on the tabs prior to applying my custom settings. A gradient centered on my mouse pointer passed across the tab as I moved it. It was very subtile but noticiable if you were paying attention. Naturally I…
PowerBuilder – Getting Database Identity Values after Multi Row Inserts from Datawindow
This is a technique to use when you have a data entry window in which multiple parent records can be inserted along with multiple child records for each parent and your tables have their record keys set up as identity values. The database in question for this discussion is SQL Server. This figure shows a…
PowerBuilder – Datawindow Drag/Drop Rows with Business Rules
This time I’m demonstrating a basic bit of functionality common to many Windows based applications – drag and drop. In this case I am talking about the ability to drag a row of data to a new location in a list. However, to make it more interesting I am throwing in some business rules which…
PowerBuilder Assertion Failure
Here is a minor head scratcher in PB11.5. IF Len(dw_1.object.column_name[1]) > 50 THEN // and so on This gives you a nifty messagebox: To fix this do something like: IF Len(string(dw_1.object.column_name[1])) > 50 THEN… or string ls ls = dw_1.object.column_name[1] IF Len(ls) > 50 THEN… Since there are two Len methods (one for blob and…
PowerBuilder – Datawindow ‘SuperSpy’ tool
Not too long ago I came across some information on a free Powerbuilder tool call ‘DWSpy’ written by Michael Zuskin (site is gone now apparently). In certain respects it is similar to my Window Object information service although geared towards datawindows. I decided to expand on the tool a bit by changing it into a…
PowerBuilder ‘Gotcha’ – Selectionchanging event on Tab controls
Selectionchanging is an event on a tab control which is triggered, according to PowerBuilder help, ‘when another tab is about to be selected.’ From this description you might think that this means changing from one tab to another; this is only partially correct. This event is triggered also when the window opens. Depending upon your…
Calculate the Last Day of the Month
Here is how to calculate the last day of the current month. Powerbuilder date ld_eom ld_eom = RelativeDate(Date(String(Month(Today()) + 1) + "/1/" + String(Year(Today()))), -1) SQL Server SELECT DATEADD(DAY, -1, DATEADD(MONTH, DATEDIFF(MONTH, 0, Getdate()) +1, 0)) I quess SQL Denali has a new function (EOMONTH) to do this too. SELECT EOMONTH(GETDATE())
Joining to a Table Function in SQL Server
Following up on my previous post, SQL Server (since version 2005 while in SQL 90 compatibility mode) provides the ability to join to the table created by a parameterized table function. In earlier versions you were not able to use a table function with a dynamic parameter or even join to it. If you needed…
Splitting up a String or Text in SQL
Here is a way to split up a block of text and return a result set based on a delimeter. A table function is used to do the ‘heavy lifting’ and, utilizing some newer features of SQL Server (2005 and 2008), you can even join to it providing for even greater flexability. This situation I…
