CODEWITHSUNDEEP
delphipropertiesrecord
Adriano
Adriano

Reputation: 11

Delphi, record type property, record field assignment

In the answer by David Heffernan, he use assignment to read-only properties (see complete program example). There are two property: RecDirect and RecFunction. Both are read-only.

My question is why would one write to something that is read-only? Also I think properties are very flexible and useful. So why would one use properties and after all refer to corresponding underlying fields?

Upvotes: 1

Views: 306

Answers (1)

SilverWarior
SilverWarior

Reputation: 8331

In the linked answer David did not write to read only property.

The Obj.RecDirect.A := 21; dos not write to a read only property.

What this does is to use RedDirect property first to retrieve reference to a Record object.

And then it uses A property of that referenced Record to write a value of 21 to FA field of that referenced Record. And if you take a look at property A definition in that record you can see that is defined as Read/Write property.

Upvotes: 1

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