From 0cfed8a28bda9cecac887651ff6b6d2e53f39504 Mon Sep 17 00:00:00 2001
From: Maylina Sengkhyavong <maylinas@microsoft.com>
Date: Tue, 21 Apr 2026 15:26:16 -0700
Subject: [PATCH] vscode-radio-group: dispatch change event on arrow key
 selection

---
 src/vscode-radio-group/vscode-radio-group.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/vscode-radio-group/vscode-radio-group.ts b/src/vscode-radio-group/vscode-radio-group.ts
index 3cb39655d..5981ad0b2 100644
--- a/src/vscode-radio-group/vscode-radio-group.ts
+++ b/src/vscode-radio-group/vscode-radio-group.ts
@@ -115,6 +115,9 @@ export class VscodeRadioGroup extends VscElement {
     if (listenedKeys.includes(key)) {
       ev.preventDefault();
     }
+    else {
+      return;
+    }
 
     if (key === 'ArrowRight' || key === 'ArrowDown') {
       this._checkNext();
@@ -123,6 +126,11 @@ export class VscodeRadioGroup extends VscElement {
     if (key === 'ArrowLeft' || key === 'ArrowUp') {
       this._checkPrev();
     }
+
+    const checkedRadio = this._radios.find(r => r.checked);
+    if (checkedRadio) {
+      checkedRadio.dispatchEvent(new Event('change', {bubbles: true, composed: true}));
+    }
   };
 
   private _handleChange(ev: CustomEvent) {