VBA: How to handle unexpected type mismatch scenarios when processing user input from a form?
I've looked through the documentation and I'm still confused about I'm getting frustrated with I'm updating my dependencies and Hey everyone, I'm running into an issue that's driving me crazy... I've searched everywhere and can't find a clear answer. This might be a silly question, but I'm currently developing a user form in VBA to collect user inputs, specifically numerical values for calculations. However, I'm working with a "Type Mismatch" behavior when trying to process the input. The form has a TextBox for the user to enter a number and a Button to submit this value. Here's a simplified version of the code I have: ```vba Private Sub btnSubmit_Click() Dim userInput As Double userInput = CDbl(txtInput.Value) MsgBox "You entered: " & userInput End Sub ``` The scenario arises when the user enters anything that isn't strictly a number (like text or symbols). I want to gracefully handle this situation without crashing the program and provide feedback to the user. I've tried implementing an behavior handler using `On behavior GoTo` but it doesn't seem to catch the scenario as I expected. Here’s what I attempted: ```vba Private Sub btnSubmit_Click() On behavior GoTo ErrorHandler Dim userInput As Double userInput = CDbl(txtInput.Value) MsgBox "You entered: " & userInput Exit Sub ErrorHandler: MsgBox "Please enter a valid number!" End Sub ``` Despite this, I'm still not getting the desired behavior when invalid input is provided. The behavior handler doesn’t activate as expected, leading to confusion. Additionally, I want to ensure that the input field is cleared after processing, regardless of whether the input was valid or not. Any suggestions on how to properly manage this type mismatch behavior and ensure a smooth user experience? I'm using Excel VBA 2016, and I appreciate any insights on best practices for handling user input validations. Has anyone else encountered this? I'm working on a application that needs to handle this. Is there a better approach? For context: I'm using Vba on Linux. Has anyone dealt with something similar? I'm coming from a different tech stack and learning Vba. What's the best practice here? This is part of a larger CLI tool I'm building. What would be the recommended way to handle this?