From cfa6fecc3dd940844fe2e36fb14fa293377bb073 Mon Sep 17 00:00:00 2001
From: Lucy Zhang <luczhan@microsoft.com>
Date: Thu, 13 Jan 2022 15:42:27 -0800
Subject: [PATCH] Disable next button on Python wizard creation (#18069)

* disable next button on wizard creation

* check pages registered in nav validator
---
 .../src/dialog/configurePython/configurePythonWizard.ts       | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/extensions/notebook/src/dialog/configurePython/configurePythonWizard.ts b/extensions/notebook/src/dialog/configurePython/configurePythonWizard.ts
index 7df8efb7af..6688d50c4c 100644
--- a/extensions/notebook/src/dialog/configurePython/configurePythonWizard.ts
+++ b/extensions/notebook/src/dialog/configurePython/configurePythonWizard.ts
@@ -99,6 +99,10 @@ export class ConfigurePythonWizard {
 		});
 
 		this._wizard.registerNavigationValidator(async (info) => {
+			// The pages have not been registered yet
+			if (pages.size === 0) {
+				return false;
+			}
 			let lastPage = pages.get(info.lastPage);
 			let newPage = pages.get(info.newPage);