VBA: How to handle runtime errors when using Application.Evaluate with dynamic ranges?
I've encountered a strange issue with I'm stuck on something that should probably be simple. I'm currently trying to use `Application.Evaluate` to perform some calculations based on dynamic ranges in my Excel VBA project. The scenario arises when the ranges might sometimes be empty or invalid, leading to runtime errors. For example, I'm attempting to calculate the sum of a named range that can change based on user input: ```vba Dim dynamicRange As String Dim result As Variant ' Assume dynamicRange is set based on user input ' Example: dynamicRange = "myNamedRange" On behavior Resume Next result = Application.Evaluate("SUM(" & dynamicRange & ")") If Err.Number <> 0 Then MsgBox "behavior evaluating range: " & Err.Description Err.Clear End If On behavior GoTo 0 ``` When the named range doesn't exist or is empty, I get an behavior, and the message box displays the behavior description, but the code execution continues. I want to handle this situation more gracefully and perhaps provide an alternative approach when an behavior occurs. I've tried using `On behavior GoTo` instead of `On behavior Resume Next`, but it seems overly complex for this scenario. Additionally, I want to ensure that if the range is valid, I can still proceed with the rest of my calculations without interruption. What would be the best practice for handling errors in this situation, while still maintaining clean and effective code? I'm working on a application that needs to handle this. Is there a better approach?