VBA, Ampersands and Loops in range names - excel

Question

Not sure how to word this well but how do for loops work in range names? what's the correct convention? E.g. I understand how the following works:
For i = 1 to 3
Sheets("1").Range("A1:B" & i).......
Next i
But if i want it to work for the the A column as well - what's the correct convention? Can't seem to find one that works
e.g. something like below
For i = 1 to 3
Sheets("1").Range("A" & i ":B" & i).......
Next i
Clarification
Sorry - I should be clarify my question
I'm not really looking for a loop, I just want to include a defined integer i column A
e.g.
Sheets("1").Range("A" & i :B3")
if that makes sense?

Answer 1

Probably cleener to do a range resize and enter the value in a single shot:
i = 3
Sheets("1").Range("A1").Resize(i, 2).Value = "Test"

Answer 2

You are missing one & in the line Sheets("1").Range("A" & i ":B" & i) after the first i. Please use this: Sheets("1").Range("A" & i & ":B" & i).Value = "Test".
------------ Old answer ------------------
If you want to loop through all cells in Range("A1:B3") you could use this:
For each cell in Sheets("1").Range("A1:B3")
cell.Value = "Test"
Next cell
This loop will progress like this: A1,B1,A2,B2,A3,B3. Hope this helps.

Answer 3

Probably you should switch from Range("A1:B2") to Range(Cells(1,1),Cells(2,2))

Answer 4

Just to clarify in VBA one has strings which are delimited by double quote character, e.g.
"hello"
"world"
To join strings together one uses an ampersand, so
"hello" & " " & "world"
Joining strings is technically known as string concatenation.
In the light of your question it is possible to join the evaluation of variables so if i = 1 then
"hello" & i & "world"
outputs hello1world.
The Range method returns a range that is either a single cell Range("A1") or multiple cells Range("A1:B1").
Simply start and end strings with double quotes and use ampersands between components of the expression so the answer for you is
Sheets("1").Range("A" & i & ":B3")