From a7ea61f9af00b6a0299663270191c95937b20af7 Mon Sep 17 00:00:00 2001
From: leo <longshuang@msn.cn>
Date: Tue, 6 Aug 2024 15:33:23 +0800
Subject: [PATCH] refactor: remove binding null warnings

---
 src/Views/Histories.axaml    |  2 +-
 src/Views/Histories.axaml.cs | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Views/Histories.axaml b/src/Views/Histories.axaml
index 5c2c08ed..b9ff71e6 100644
--- a/src/Views/Histories.axaml
+++ b/src/Views/Histories.axaml
@@ -84,7 +84,7 @@
 
                     <v:CommitSubjectPresenter Classes="primary" 
                                               Subject="{Binding Subject}"
-                                              IssueTrackerRules="{Binding $parent[v:Histories].((vm:Histories)DataContext).IssueTrackerRules}"
+                                              IssueTrackerRules="{Binding $parent[v:Histories].IssueTrackerRules}"
                                               Opacity="{Binding Opacity}"
                                               FontWeight="{Binding FontWeight}"/>
                   </StackPanel>
diff --git a/src/Views/Histories.axaml.cs b/src/Views/Histories.axaml.cs
index c87a4256..7e2feaa6 100644
--- a/src/Views/Histories.axaml.cs
+++ b/src/Views/Histories.axaml.cs
@@ -459,6 +459,16 @@ namespace SourceGit.Views
             set => SetValue(NavigationIdProperty, value);
         }
 
+        public AvaloniaList<Models.IssueTrackerRule> IssueTrackerRules
+        {
+            get
+            {
+                if (DataContext is ViewModels.Histories histories)
+                    return histories.IssueTrackerRules;
+                return null;
+            }
+        }
+
         static Histories()
         {
             NavigationIdProperty.Changed.AddClassHandler<Histories>((h, _) =>