More Property help
Maybe a dumb question, but I am still trying to grasp properties...
If I'm declaring:
Private a as string
Private b as string
Private c as string
Can I use only 1 property, passing the 'name'?
Public Property MyProperty(myString as String) as String
??
If I'm declaring:
Private a as string
Private b as string
Private c as string
Can I use only 1 property, passing the 'name'?
Public Property MyProperty(myString as String) as String
??
Carl Tawn
You mean use one property to set the values for a, b and c ? And pass the name of the one to set ?
ASKER
yes ( I think )
Then the answer is no.
You can set multiple values from within a single property, but you can't tell it which to set, unless you did it based on the value passed. But if you did that then you would confuse the usage of the property.
You can set multiple values from within a single property, but you can't tell it which to set, unless you did it based on the value passed. But if you did that then you would confuse the usage of the property.
U mean a property like this :
Public Property MyProp(ByVal str As String) As String
Get
Return str
End Get
Set(ByVal Value As String)
If str = "a" Then
a = value
ElseIf str = "b" Then
b = value
ElseIf str = "c" Then
c = value
End If
End Set
End Property
one more thing if u want the same values as parameters passed then u have to use the if statements for Get also
i.e.
Get
If str = "a" Then
return a
ElseIf str = "b" Then
return b
ElseIf str = "c" Then
return c
End If
End Set
i.e.
Get
If str = "a" Then
return a
ElseIf str = "b" Then
return b
ElseIf str = "c" Then
return c
End If
End Set
ASKER
Great manch - I'll try this out.
What do I reference in my "get"?
If I'm using Int, for example:
Private mintBoard1 as Integer
[...]
Private mintBoard10 as Integer
Public Property BoardLength(byVal myBoard as Integer) As Integer
Get
Select Case myBoard
Case ??? ' Would this be "mintBoard1" or something else?
Return mintBoard1
What do I reference in my "get"?
If I'm using Int, for example:
Private mintBoard1 as Integer
[...]
Private mintBoard10 as Integer
Public Property BoardLength(byVal myBoard as Integer) As Integer
Get
Select Case myBoard
Case ??? ' Would this be "mintBoard1" or something else?
Return mintBoard1
ASKER
>> But if you did that then you would confuse the usage of the property.<<
How so? Remember - I'm still new to Properties...the last thing I need is more confusion! :^)
How so? Remember - I'm still new to Properties...the last thing I need is more confusion! :^)
ASKER
Odd - I haven't got notifications on these last two comments... :(
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Oh well - it just looked sloppy to me to have
private mVar1
private mVar2
[...]
private mVar10
But ah well...
private mVar1
private mVar2
[...]
private mVar10
But ah well...
Depending on what you are trying to achieve, there may be alternatives to using properties. If you wanted a large number of properties but not have to create variables for each one then you could opt for exposing a HashTable via a property and that would then allow your users to add Name/Value pairs through a single property.
This, of course, would require a little more validation within the property itself to make sure the user doesn't add anything they shouldn't. You could even have a method called SetProperty that takes a property name or Enum and a value:
Private _hash As New HashTable()
Public Sub SetProperty(ByVal name As String, ByVal value As String)
_hash[name] = value
End Sub
This, of course, would require a little more validation within the property itself to make sure the user doesn't add anything they shouldn't. You could even have a method called SetProperty that takes a property name or Enum and a value:
Private _hash As New HashTable()
Public Sub SetProperty(ByVal name As String, ByVal value As String)
_hash[name] = value
End Sub
ASKER
Beyond my 'current' understanding - but thanx.