#PowerPlatformTip 78 – ‘Efficient Control Reset’

💡 Challenge

In Power Apps, resetting multiple controls to their default state can be tedious and clutters your code when using individual Reset functions, making the app less efficient.

✅ Solution

Use a single context variable to reset all linked controls globally, simplifying your code and improving app performance.

🔧 How It’s Done

Here’s how to do it:

1. Create a Context Variable
   🔸 Initialize a context variable, e.g., ResetVar, in the app’s OnStart or screen’s OnVisible property.
   🔸 Example: OnVisible = UpdateContext({ ResetVar: false })
2. Link to Controls
   🔸 Set each control’s Reset property to ResetVar.
   🔸 Only linked controls will reset when ResetVar changes.
3. Trigger Reset
   🔸 Add a button or action and toggle the variable:
   OnSelect = UpdateContext({ ResetVar: !ResetVar })
   🔸 This single action resets all linked controls at once.

🎉 Result

You now have a mechanism that resets all linked controls globally with one action, resulting in cleaner code and a more efficient app.

🌟 Key Advantages

🔸 Efficiency: Reset all controls with a single toggle, reducing development effort.
🔸 Cleaner Code: Avoid repetitive Reset calls, leading to maintainable app logic.
🔸 Improved User Experience: Provide a fast, seamless reset for end-users.

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🎥 Video Tutorial

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🛠️ FAQ

1. How do I initialize the ResetVar?
Set it in a screen’s OnVisible property or the app’s OnStart using UpdateContext or Set.

2. Can I reset only a subset of controls?
Yes. Link only the controls you want to reset by setting their Reset property to ResetVar.

3. What if a control doesn’t reset as expected?
Ensure its Reset property is correctly bound to ResetVar and that you’re toggling the variable in your action’s OnSelect.