Property Let Not working

[sergiog]

Hi
I have the following code in a Control I made:

Public Property Let ShowRecNo(Show As Boolean)
If Show Or Not Show Then
txtRec.Visible = Show
End If

PropertyChanged ShowRecNo

End Property

Before it goes through the line saying "txtrec.visible = show", txtrec.visible is false and show is true.
Then, when it goes through it, txtrec.visible does not chnage.

Any ideas?
thanks

sergio

 

[Qamgine]

Visibile is a Boolean option, meaning the contents are True or False. Try this:

Public Property Let ShowRecNo(Show As Boolean)
If Show Or Not Show Then
txtRec.Visible = True
End If

PropertyChanged ShowRecNo

End Property

 

[TheVampire]

Which is exactly why he's got the variable "Show As Boleean" in there.

Why do you need the If statement ( If Show Or Not Show Then ) It'll always evaluate to true ( Show is either true or false, and either condition will satisfy the If statement ), so what's the point of having it in there?

Robert

 

[sergiog]

i have it because i thought that a user might pass any value seeing that it's a public property.

but now i removed it and it's working. cheers.

sergio.

by the way, do you have any idea how to check that a user actually passed what was intended as paramter.
for example,
I have a sub Connect(Cursortypeas CursorTypeEnum)
how would i check if the user actually passed one of the CursorTypeEnum constants without knowing the constants (maybe something like typeOf i don't know)

thanks again

 

[CassandraR]

Hi Sergiog:

If you are using

Option Explicit

and if you define a variable as anything other than Variant, then VB will do error checking. It will notify you that the parameter and argument do not agree in type.

This assumes that the error handler is still with VB. If you use the

On Error

statement to assign an error handler, then your error handler will be called when there's a mismatch between parameter and argument.

If an object is being passed, then using

If TypeOf . . . Then

becomes an option.

Cassie