Excel VBA Break For Loop
In VBA Break For Loop is also known as exit for loop, every loop in any procedure has been given som11e set of instructions or criteria for it to run nuber of time but it is very common that some loop get into an infinite loop thus corrupting the code in such scenarios we need break for or exit for loop to come out of certain situations.
Let’s say we have instructed the loop to run for 10 times, and based on the condition given, if the cell value or any other supplied criteria is successful, then it has to exit the excel loop before it completes the full loop quota of 10. In this article, we will show you how to exit the loop based on the criteria given.
How to Break/Exit Loops in VBA?
#1 – Break For Next Loop
VBA For Next Loop is used to loop over cells and perform a specific set of tasks. For example, look at the below VBA code.
Code:
Sub Exit_Loop() Dim K As Long For K = 1 To 10 Cells(K, 1).Value = K Next K End Sub
This will insert serial numbers from cell A1 to A10.
This is the obvious thing with For Next Loop.
Now I want to break the loop when any value is found in the first 10 cells. For this, I have entered some text value in the cell A8.
Now I want to instruct this in the code, saying, “if the looping cell has a certain value, it has to exit the loop before the pre-determined limit.”
Code:
Sub Exit_Loop() Dim K As Long For K = 1 To 10 If Cells(K, 1).Value = "" Then Cells(K, 1).Value = K Else Exit For End If Next K End Sub
Look these line of code:
If Cells(K, 1).Value = “” Then
Cells(K, 1).Value = K
Else
Exit For
End If
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It says If Cells(K, 1). Value = “looping cell is equal to nothing continue the loop of inserting serial numbers from 1 to 10.
The last part of the loop says:
Else
Exit For
If the above condition is not TRUE, then the “Exit For” loop.
Now run the code. It will insert serial numbers until the A7 cell.
The above code straight away exited the loop without saying anything; how do we know it has exited the loop.
To clear this ambiguity, we need to put one simple VBA message box below.
Code:
Sub Exit_Loop() Dim K As Long For K = 1 To 10 If Cells(K, 1).Value = "" Then Cells(K, 1).Value = K Else MsgBox "We got non empty cell, in cell " & Cells(K, 1).Address & vbNewLine & "We are exiting the loop" Exit For End If Next K End Sub
When looping through the cell, if any non-empty cell is found, it will display the message saying, “We got non-empty cell, in cell A8. We are exiting the loop”.
This will inform the user of the exit of the loop with a cell address as well. If any value is entered by mistake, then we can check the cell address returned in the message box.
#2 – Break Do Until Loop
Like how we have exited For Next Loop, similarly, we can exit the “Do Until” loop as well. For example, look at the below code.
Code:
Sub Exit_DoUntil_Loop() Dim K As Long K = 1 Do Until K = 11 Cells(K, 1).Value = K K = K + 1 Loop End Sub
This code also performs the task of inserting serial numbers. For example, if we wish to exit the loop when the variable “k” value becomes 6, we need to enter the criteria as IF k = 6 then exit the loop.
Code:
Sub Exit_DoUntil_Loop() Dim K As Long K = 1 Do Until K = 11 If K < 6 Then Cells(K, 1).Value = K Else Exit Do End If K = K + 1 Loop End Sub
This will run the loop until the variable value becomes 6. After that, it will exit the loop. If you wish to show the message to the user, then you can add the message box as well.
Code:
Sub Exit_DoUntil_Loop() Dim K As Long K = 1 Do Until K = 11 If K < 6 Then Cells(K, 1).Value = K Else MsgBox "We are exiting the loop because k value is >5" Exit Do End If K = K + 1 Loop End Sub
This will show the message below.
Like this, based on the criteria given, we can exit the loop if the criteria are TRUE, or else we can continue the loop.
Recommended Articles
This has been a guide to VBA Break For Loop. Here we learn how to exit/break the VBA loop along with step by step examples and a downloadable excel template. Below are some useful excel articles related to VBA –
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