VBA Hide Row in table if Specified Column is Empty - vba

Question

I am trying to add to a macro I have that will hide every row that has no text in a column named Authorization. Please see the code I have below, I thought this may be on the right track but it does not hide any rows.
Cells.EntireRow.Hidden = False
For Each cell In Range("Authorization").End(xlUp)
If cell = "" And cell.Offset(1, 0) = "" Then cell.EntireRow.Hidden = True
Next cell

Answer 1

Edited to add how to define a dynamic named range
It is the fact that you have set the whole column to the name "Authorisation" that I think makes your code freeze, because the whole column is 1 million rows (if you have 2007 or above), and the code will still check even blank rows, so its doing it 1 million times. 1 Option is to rather than set it to the whole column, you could use a "Dynamic Named Range" which will expand and grow as data is added. There are several different formulas to do this, but based on the fact your data may contain blanks, this version of the formula will expand down to the last populated row in the column. My example uses colum A as you havent specified what column you are using, so change A to suit your needs.
You need to open the Names manager, from the Formulas tab
From the dialog box, find your "Authorisation" name.
Select it and you should see its current formula at the bottom of the dialog box, replace that with the following formula:
=OFFSET(Sheet1!$A$3,0,0,MATCH("*",Sheet1!$A:$A,-1)-2,1)
In the above formula:
Sheet1 is my sheet, replace it with yours a needed
$A$3 is the starting row of the name, so based on your comments, have set this as column A row 3
0,0, Are defaults you should not need to change
$A$A$ is the column it is counting values, so change as required
-1 is a default, leave as is
-2 is subtracting 2 from the count because we are starting on row 3, so if you change the starting row, change this
the last 1, defined how many columns your named range covers, in your example it is just 1, so this should not need changing.
Once you have defined the name in this way, the code below should work a lot quicker as it will only loop through down to the last row of entered data. There is one possible issue I can see with this and that is if the very last cell in column A is blank, but the rest of the row isn't, this will miss out the last row. I could fix this by using a different column to count what constitutes the last row, but need to know whicj column would always have a value in it.
< Original answer and code>
not sure you code matches the description of what you want it to do, namely you seem to be trying to check the row beneath the current cell as well, is this what you really wanted? Anyhow your syntax is slightly wrong. I have written and tested this and it works, I have swapped your offset around so my code is checking the cell in the named range "Authorisation" and then also checking the cell to the right. Amend to suit your needs
Sub test()
Dim c As Range
For Each c In Range("Authorisation").Cells
If c.Value = "" And c.Offset(0, 1).Value = "" Then c.EntireRow.Hidden = True
Next c
End Sub