The uses clause is one of those things that just tends to grow and grow.
Most of the time this is in the main form, as it's from this form that all others are called.
If you have a big application (including many forms),
the uses clause in the in…
This Article will show you how to validate number with TEdit control,
What's the TEdit control?
TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text.