The Blazor Puzzle 9 - Why Won't My Textbox Get Focus?

Описание: The Challenge:
✅ You're using an ElementReference to focus a textbox after making it visible
✅ You call StateHasChanged() after setting show = true
✅ You then try to call FocusAsync() on the ElementReference
🚨 But it throws an error: "Element reference has not been configured correctly"

Your Task:
1️⃣ Explain why this error happens
2️⃣ Describe the lifecycle issue that prevents FocusAsync() from working as expected
3️⃣ Provide a solution that correctly sets focus to the input field after it is rendered

How to Submit Your Answer:
📩 Email your solution to:
📧 [email protected]
📌 Subject: Puzzle #9

📸 Bonus: If you solve it, post a screenshot of your working app with #BlazorPuzzle on social media, and we’ll give you a shoutout!

🔧 Master Blazor’s rendering lifecycle—solve UI issues and keep your apps smooth!

Download the project at https://github.com/BlazorPuzzle/Puzzle-9

Good Luck!

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