Demo of Date Class for new ESBDevLib for Delphi VCL/FMX

We’ve been working on our Date Class (and Date Components), to go along with our Year Class / Component – both are parts of the Calendar Engine side of ESBDevLib for Delphi VCL/FMX, which is based on existing routines and components that are used in our ESBPCS for VCL.

We had hoped to have this done a few weeks ago, but I discovered when doing some Android testing, that we had not properly allowed for 0-based strings in a few places – so we thought that we would go through the String Libraries in ESBDevLib and make sure that they use TStringHelper and TStringBuilder where appropriate to ensure 0-based string support, as well as future Immutability requirements.

It is doing changes like this where the swag of existing Unit tests come in very handy – not that I would every do a small change that would break things elsewhere 😉

Anyway, after that we got back into the Date Class/Component – since we are wanting to use the new Calendar Engine in v2 of our ESBDateCalc Application. As mentioned in an earlier posts, we are doing a Class and a Component Demo for each of these – and will do VCL and FMX demos, so that developers can see the different approaches – plus it is an opportunity to see how the Formatter Classes/Component and the UICtrl Component works.

Here are a couple of Screen Shots (under Windows 10):

Date Class Demo 1

Date Class Demo 2

The Date Class/Component like the Year Class/Component support BC/BCE dates – and whilst TDateTime methods are provided, our Reference Date is used throughout.

We next have to do a descendant of the above which include Time – and then work on the new version of our Date Range Class/Component, and its descendant that will include time.

About esbglenn

Software Developer working at our Family owned business, ESB Consultancy, which is located in Kalgoorlie-Boulder, in the Eastern Goldfields of Western Australia.
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