Do… Loop Until with multiple conditions

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醉酒成梦
醉酒成梦 2021-01-20 16:30

I have a quick question about which I did not find specific information on the web. I want to perform a Do...Loop Until loop, but I would like to insert more th

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  • 2021-01-20 17:18

    The below example shows lazy evaluation implementation:

    Do
        ' some operations
        Select Case False
            Case Condition1
            Case Condition2
            Case Condition3
            Case ConditionN
            Case Else Exit Do
        End Select
    Loop
    

    Such code allows to improve performance and speed up code execution. It evaluates conditions one by one until first false result only, if all conditions are true then it exits the loop, while conventional And operators evaluate all conditions regardless of the results.

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  • 2021-01-20 17:26

    You can use And and/or Or:

    Do
      'Your code
    Loop until condition1 And condition2
    

    And will continue all the time all conditions are met. Or will continue when one or more of the conditions are met.

    You can have any number of conditions.

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  • 2021-01-20 17:27

    It is possible indeed as if you were using "if " statement, for example:

    Do Until rngCell.Value="" Or rngCell.Value="abc"
       DatePresent = (rngCell.Value = "RESP") Or (rngCell.Value ="Respiratory")
       Set rngCell = rngCell.Offset(1)
    Loop
    
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