From c865207540a1eb960aa89ac61ba89d0f0fa7bd17 Mon Sep 17 00:00:00 2001
From: yaakovschectman <109111084+yaakovschectman@users.noreply.github.com>
Date: Tue, 23 Aug 2022 15:58:56 -0400
Subject: [PATCH] Document tristate value (#110106)

Documentation for Checkbox.value previously did not cover the tristate case.
---
 packages/flutter/lib/src/material/checkbox.dart | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/flutter/lib/src/material/checkbox.dart b/packages/flutter/lib/src/material/checkbox.dart
index ecc05710eda..bfb7aae9cac 100644
--- a/packages/flutter/lib/src/material/checkbox.dart
+++ b/packages/flutter/lib/src/material/checkbox.dart
@@ -91,7 +91,8 @@ class Checkbox extends StatefulWidget {
 
   /// Whether this checkbox is checked.
   ///
-  /// This property must not be null.
+  /// When [tristate] is true, a value of null corresponds to the mixed state.
+  /// When [tristate] is false, this value must not be null.
   final bool? value;
 
   /// Called when the value of the checkbox should change.