VB .net - stored procedure - line number count - vb.net

Question

I'm back again as I'm waiting for the coffee to kick in and have another question that seems to be not causing my brain cells to fire correctly.
I've set the following code to determine the line numbers of all rows returned from the procedure loop.
linenum = 0
Do While (rsData.Read())
linenum = linenum + 1
loop
Now I'm trying to code a button that will move users to different sections depending on the linenumber returned.
So if there's only one linenum with a value of 1, they get a button to 'Apply'.
If the total linenum values are greater than 1, they get a button to 'select apply date'.
Now again I'm having a brain fart and can't think of the logic if theres a linenum of 1+ how to determine the button should be displayed. It needs to include the value of 1 as well as there are more than one linenums so the button should display the 'select apply button'.
Any ideas?
Thanks!

Answer 1

I think you'll have better luck populating a DataTable and using the row indexes, or returning the row number from the stored procedure.
SELECT ROW_NUMBER() OVER(ORDER BY SalesYTD DESC) AS Row, FirstName, LastName, ROUND(SalesYTD,2,1) AS YTD
FROM Sales.vSalesPerson
WHERE TerritoryName IS NOT NULL AND SalesYTD <> 0
It looks like you're using a SqlDataReader currently, so it shouldn't be too difficult to adjust so it returns a DataTable instead:
DataTable table = new DataTable();
using (SqlDataAdapter adap = new SqlDataAdapter(cmd))
{
adap.Fill(table);
}

Answer 2

Not clear what you're trying to accomplish, but to directly answer your question:
if linenum = 0 then
mybutton.visible = false
else if linenum = 1 then
mybutton.visible = true
mybutton.text = "Apply"
else
mybutton.visible=true
mybutton.text = "Apply select"
end if
But I would think that if linenum > 1, someplace you also have to giv the user the list of things to select from, and a way to select one of them. Like build a dropdown box or something.