I've created an automation add-in for Excel using .NET. This add-in
contains a function called GetValue. The GetValue function takes two
parameters, hits a SQL database, and returns a value to the cell. I've
successfully added the add-in to Excel. I've also successfully utilized
the add-in function that returns data. For instance, I place the
following function call in an Excel cell...

=MyAddIn.GetValue("Q1", "SALES")

....and it returns me the Q1 sales number from the database. I save this
Excel file and close it.

Now, I go into the database and change the Q1 sales data to a different
value. I open up the Excel file described above. My problem is that the
cell with the "=MyAddIn.GetValue("Q1", "SALES")" function does not
reflect the changed value. I have to physically click on the cell and
hit enter for the data to refresh.

My question is this: How can I get my data to refresh on the opening of
the Excel file? Can I build something into the add-in that will allow
me to do this?

Thanks,

Alex Agran