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Dynamically Setting Field Errors
I’m currently working on the import of EDI orders from our EDI processor to Lansa. We have many (hundreds) of EDI partners all with specific business rules and data validation. I validate order data...
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Using File Level Triggers for Validation Routines
Processing orders into our system has provided some very unique challenges. Orders enter the system via three conduits: EDI, Batch Processing, and Manual Entry Orders are filled for hundreds of...
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An Argument for Field Prompters
I was a late addition to the field prompter bandwagon. During my first few years coding with Lansa I tended to present users with field options in a combo box. I have since turned away from combo boxes...
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Drag and Drop Files into a Visual Lansa Application
This reusable part provides the functionality to integrate Windows Explorer in Lansa Applications. I use an ActiveX control #VA_WEBCTL where PROGID(‘Shell.Explorer.2′). Encapsulating the Explorer Shell...
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Managing Treeview Checkboxes
It’s been several months since my last post. I have taken a new position with an ISV located in Atlanta, Georgia. My new position has afforded me the conundrum of having more to blog about and less...
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A Microsoft Word Style Rich Text Memo Box
A Microsoft Word style Rich Text Memo Box has many possible uses within applications. When I first created this component it was to be used in a product specifications system where text instructions...
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Multi-Calendar Component
A recent post on the Yahoo Lansa Group asked about a date picker with a two month display. While there was not an easy way of using the Calendar primitive I had previously created a dynamic calendar...
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Understanding Component Scope
In Visual Lansa the concept of component scope is often misunderstood. I have come across many component definitions that misuse the scope parameter. Often, it is because definitions are copied...
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Running Lansa as a Windows Service
I have seen the question of how to run a Lansa function as a Windows Service posted may times in various online forums. The Lansa executable (X_RUN.exe) does not have the entry and exit points for the...
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Using Field Visualizations
Visual Lansa’s field visualization capabilities are very powerful. I have come across many areas in code where the visual display of data is manipulated in code within forms and reusable parts…only to...
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