Solved

Assigning  a value to a variable in another procedure

Posted on 2007-12-06
4
1,354 Views
Last Modified: 2012-06-22
I have been  using excel vba to develop some forms...I have been using text box values as values in my comutations...However since in some cases i need to format the text to a given decimal place i am loosing precision. So my solution is to assign the values to variables and format during the transision from variable to text box....for instance In the example below i am assigning a value to a text box in another form...along these lines how would i assign a value to a variable in a private sub linked to a different form..


'rad is a double variable 
 
 
Time_of_Concentration_Form.tb_hydro_rad_CHF5 = rad
'this works fine
 
 
Time_of_concentration_form.private sub main (local Variable) = rad
'this i can't do

Open in new window

0
Comment
Question by:ToddHawley4984
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 38

Expert Comment

by:PaulHews
ID: 20423552
Your local variable has local scope and is inaccessible from outside the form.  The preferred method to keep state in your userform is to use a module level variable and access it with a public property

In your user form:

Private mRad As Double

Private Sub Main()
    mRad = 5  'Set however you set this variable.
End Sub

Public Property Get Rad() As Double
    Rad = mRad
End Property

Public Property Let Rad(Value As Double)
    mRad = Value
End Property


Now you can assign the value using the public property from other code:

Time_of_Concentration_Form.Rad = rad




0
 

Author Comment

by:ToddHawley4984
ID: 20423684
I've only been programming in VBA for about a week...I understand that its a module level variable but I don't quite understand how to manipulate it

0
 

Author Comment

by:ToddHawley4984
ID: 20423696
If i'm gonna use a given value in different form should i use a public variable delared in my module?  Is there any real reason not to use public variables other than memory consumption?  I realize if i have a public variable i have to be careful about changing in from different procedures
0
 
LVL 38

Accepted Solution

by:
PaulHews earned 50 total points
ID: 20424490
Using a public variable is a possibility.  The private with property method I showed above would work the same as if you declared a public variable:

Public Rad As Double

Private Sub Main()
    Rad = 5  'Set however you set this variable.
End Sub

Memory consumption isn't much of an issue when we're talking about one double value.  It's only 8 bytes and you would still use that with a private module level variable.
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Since upgrading to Office 2013 or higher installing the Smart Indenter addin will fail. This article will explain how to install it so it will work regardless of the Office version installed.
If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
This Micro Tutorial demonstrates how to create Excel charts: column, area, line, bar, and scatter charts. Formatting tips are provided as well.
This Micro Tutorial will demonstrate how to create pivot charts out of a data set. I also added a drop-down menu which allows to choose from different categories in the data set and the chart will automatically update.

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question