gem56
asked on
How to formulate a pointer to an object
Hi experts,
I'd like to access an object whose reference is based on contents of one or more strings. To help explain what I mean I'll give you an example.
I have a string variable called 'ObjectName', that will contain the name of the object that I want to access, and a variable called 'PropertyName, that will contain the name of the property within an object. What I'd like to do is basically combine the contents of those two strings to form a reference/pointer to the actual object property, as per below:
Dim ObjectName as String
Dim PropertyName1 as String
Dim PropertyName2 as String
pointer?(ObjectName & PropertyName1) = "12345"
pointer?(ObjectName & PropertyName2) = "ABC12345"
or
set pointer?(ObjectName & PropertyName1) = xxxxxx
set pointer?(ObjectName & PropertyName2) = xxxxxx
The above syntax examples are incorrect but serve the purpose of explaining (I hope) what I'm trying to achieve.
Can it be done?
/Michael
I'd like to access an object whose reference is based on contents of one or more strings. To help explain what I mean I'll give you an example.
I have a string variable called 'ObjectName', that will contain the name of the object that I want to access, and a variable called 'PropertyName, that will contain the name of the property within an object. What I'd like to do is basically combine the contents of those two strings to form a reference/pointer to the actual object property, as per below:
Dim ObjectName as String
Dim PropertyName1 as String
Dim PropertyName2 as String
pointer?(ObjectName & PropertyName1) = "12345"
pointer?(ObjectName & PropertyName2) = "ABC12345"
or
set pointer?(ObjectName & PropertyName1) = xxxxxx
set pointer?(ObjectName & PropertyName2) = xxxxxx
The above syntax examples are incorrect but serve the purpose of explaining (I hope) what I'm trying to achieve.
Can it be done?
/Michael
Put htis code in form. This will set text1 property of text1 object
Private Sub Command1_Click()
Dim myObj As Object
Set obj = Me.Controls("Text1")
If obj Is Nothing Then
MsgBox "Can not find control"
Else
CallByName obj, "Text", VbLet, "Some text"
End If
End Sub
Private Sub Command1_Click()
Dim myObj As Object
Set obj = Me.Controls("Text1")
If obj Is Nothing Then
MsgBox "Can not find control"
Else
CallByName obj, "Text", VbLet, "Some text"
End If
End Sub
ASKER
Hi mladenovicz,
Thanks for your response however I know the syntax for Form objects, which is as per your feedback, but what I was referring to is class objects. I think that JR2003 may be on teh right track.
/Michael
Thanks for your response however I know the syntax for Form objects, which is as per your feedback, but what I was referring to is class objects. I think that JR2003 may be on teh right track.
/Michael
I think that you will have to store objects in collection in order to access them by name.
However, CallByname is the way to set/get/let property or call method of object
However, CallByname is the way to set/get/let property or call method of object
ASKER
Hi JR2003,
I just had a quick look at help for your suggestiopn ('CallByName') and I think that you may be right however I don't have any examples so I'll have to try it out. If my initial understanding is right would I use that function in the following way for my example above?
Dim ObjectName as String
Dim PropertyName1 as String
Dim PropertyName2 as String
CallByName(ObjectName, PropertyName1,vbLet,"12345
CallByName(ObjectName, PropertyName2,vbLet,"ABC12
or
CallByName(ObjectName, PropertyName1,vbSet,xxxxxx
CallByName(ObjectName, PropertyName2,vbSet,xxxxxx
Cheers,
Michael
I just had a quick look at help for your suggestiopn ('CallByName') and I think that you may be right however I don't have any examples so I'll have to try it out. If my initial understanding is right would I use that function in the following way for my example above?
Dim ObjectName as String
Dim PropertyName1 as String
Dim PropertyName2 as String
CallByName(ObjectName, PropertyName1,vbLet,"12345
CallByName(ObjectName, PropertyName2,vbLet,"ABC12
or
CallByName(ObjectName, PropertyName1,vbSet,xxxxxx
CallByName(ObjectName, PropertyName2,vbSet,xxxxxx
Cheers,
Michael
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Have you looked at the 'CallByName' function to see if that meets your requirements?