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Senin, 22 Juli 2024

Validation in VB Classic

Validation in Visual Basic 6 / VB6

variable:

Boolean

function:

IsArray
IsDate
IsEmpty
IsError
IsMissing
IsNull
IsNumeric
IsObject

return value = boolean

function (to validate variable):

TypeName = for every variable include control.
VarType

operator

TypeOf ... Is

Validate Event

dedicated to validate:
Validate
QueryUnload
Unload

related to validate:
KeyPress
KeyUp
KeyDown
Change
Click
GotFocus
LostFocus

property
KeyPreview

Bibliography

https://microsoft.com/
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