From f994ec977be9c84d389b913f4a33a5b277d6e91b Mon Sep 17 00:00:00 2001
From: NaBian <836904362@qq.com>
Date: Mon, 24 May 2021 22:34:35 +0800
Subject: [PATCH] fixed a bug of CheckComboBox

SelectedItem cannot be restored while clearing
---
 .../Controls/Input/CheckComboBox/CheckComboBox.cs      | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs b/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
index 9b9b0baf..fd8a4796 100644
--- a/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Input/CheckComboBox/CheckComboBox.cs
@@ -116,7 +116,15 @@ namespace HandyControl.Controls
         public CheckComboBox()
         {
             AddHandler(Controls.Tag.ClosedEvent, new RoutedEventHandler(Tags_OnClosed));
-            CommandBindings.Add(new CommandBinding(ControlCommands.Clear, (s, e) => SelectedItems.Clear()));
+
+            CommandBindings.Add(new CommandBinding(ControlCommands.Clear, (s, e) =>
+            {
+                SetCurrentValue(SelectedValueProperty, null);
+                SetCurrentValue(SelectedItemProperty, null);
+                SetCurrentValue(SelectedIndexProperty, -1);
+                SelectedItems.Clear();
+            }));
+
             ItemContainerGenerator.StatusChanged += ItemContainerGenerator_StatusChanged;
         }