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Language: Visual Basic
Expertise: Beginner

Aug 6, 1997

Have you ever wanted to push a variable onto a form without using a tag? Property functions let you create custom properties for forms or class models. Use PropertySet, PropertyGet, and PropertyLet statements to manipulate custom properties. For example, you want to send a key value to a form so that the key is there in time for an SQL query to use it in a condition. Include a variable declaration for the property as a form-level variable:

 Private msKey as String

Then add two procedures for PropertySet and PropertyLet for the form:

 Public Property Let GetKey(vNewValue)
	msKey = vNewValue
End Property
Public Property Get GetKey()
	GetKey = msKey
End Property

You can now set the property from elsewhere by using:

 Form1.GetKey = "David"

In your form, use the variable you declared for any usage in your code. Property Procedures can be a bit more complex. But, the point is that the VB4 has become much more adaptable to your needs. Customize it to fit.