# Trouble with Simple Macro- do until, row counter, and inputbox

#### hgsouthall

##### New Member
Hello! I'm having trouble with what should be a relatively simple macro. I'm trying to input a specific number of coordinates. The number of coordinates is determined by the user through an input box. When the row number equals the inputbox number, I would like the inputbox prompt to stop asking for more coordinates. This is what I have so far.

Code:
``````Option Explicit
Sub Cholera()

DIM i as integer:                              'Row counter
DIM M(100,2) as integer:                   'Array for coordinates, 100 = limit

i = 1 M = InputBox("Maximum number of cases", , 0)

Do Until i = M

Cells(i, 1) = InputBox("x coordinates for cases", , "")
O(i, 1) = Cells(i, 1)
Cells(i, 2) = InputBox("y coordinates for cases", , "")
O(i, 2) = Cells(i, 2)
i = i + 1
Loop``````

Last edited:

#### JoeMo

##### MrExcel MVP
What problem(s) are you having? What's the purpose of the 2-D array O()?

#### rjwebgraphix

##### Well-known Member
Couple things I noticed off the bat....

You have M declared like a multidimensional array. If you want to limit the number it'll have to be done differently.

Example in code below:

i and M are on the same line. (split them)

Besides that. I commented out 2 lines that don't make sense. What do you expect them to do? The way you have it, it thinks that O should be a function or a sub that you're calling. But it's written in the format like you would writing directly to cells(i, 1).... so I'm not sure what you're expecting it to do.

Code:
``````Sub Cholera()

Dim i As Integer                              'Row counter
Dim M As Variant                  'Array for coordinates, 100 = limit

i = 1

retry:
M = InputBox("Maximum number of cases")
If M > 100 Or M <= 0 Then
ans = MsgBox("Number exceeds 100 or is equal to or less than 0", vbRetryCancel + vbCritical)
If ans = vbRetry Then GoTo retry
If ans = vbCancel Then Exit Sub
ElseIf M = "" Then Exit Sub
End If

Do Until i = M
Cells(i, 1) = InputBox("x coordinates for cases", , "")
'        O(i, 1) = Cells(i, 1)
Cells(i, 2) = InputBox("y coordinates for cases", , "")
'        O(i, 2) = Cells(i, 2)
i = i + 1
Loop

End Sub``````

Last edited:

#### rjwebgraphix

##### Well-known Member
Was trying to fix an error in the above code, but ran out of time. Sorry.... This also covers the error you would get if someone clicked Cancel on the first input box. You'd want to address other input boxes in a similar fashion.

Code:
``````Sub Cholera()

Dim i As Integer                              'Row counter
Dim M As Variant                  'Array for coordinates, 100 = limit

i = 1

retry:
M = InputBox("Maximum number of cases")
If M = "" Then Exit Sub
If M > 100 Or M <= 0 Then
ans = MsgBox("Input was not a number between 1 and 100", vbRetryCancel + vbCritical)
If ans = vbRetry Then GoTo retry
If ans = vbCancel Then Exit Sub
End If

Do Until i = M
Cells(i, 1) = InputBox("x coordinates for cases", , "")
'        O(i, 1) = Cells(i, 1)
Cells(i, 2) = InputBox("y coordinates for cases", , "")
'        O(i, 2) = Cells(i, 2)
i = i + 1
Loop

End Sub``````

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