From 16e01af6b015045969853e1b012cd88b07cb8792 Mon Sep 17 00:00:00 2001
From: rabbitism <popmessiah@hotmail.com>
Date: Thu, 20 Jun 2024 19:54:45 +0800
Subject: [PATCH] fix: fix month index.

---
 src/Ursa/Controls/DateTimePicker/CalendarView.cs       | 2 +-
 src/Ursa/Controls/DateTimePicker/CalendarYearButton.cs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Ursa/Controls/DateTimePicker/CalendarView.cs b/src/Ursa/Controls/DateTimePicker/CalendarView.cs
index 6cc7094..fcc3b74 100644
--- a/src/Ursa/Controls/DateTimePicker/CalendarView.cs
+++ b/src/Ursa/Controls/DateTimePicker/CalendarView.cs
@@ -362,7 +362,7 @@ public class CalendarView : TemplatedControl
             for (var i = 0; i < 12; i++)
             {
                 var child = _yearGrid.Children[i] as CalendarYearButton;
-                child?.SetContext(CalendarViewMode.Year, new CalendarContext { Month = i });
+                child?.SetContext(CalendarViewMode.Year, new CalendarContext { Month = i+1 });
             }
         }
         UpdateHeaderButtons();
diff --git a/src/Ursa/Controls/DateTimePicker/CalendarYearButton.cs b/src/Ursa/Controls/DateTimePicker/CalendarYearButton.cs
index 917beb4..3aef990 100644
--- a/src/Ursa/Controls/DateTimePicker/CalendarYearButton.cs
+++ b/src/Ursa/Controls/DateTimePicker/CalendarYearButton.cs
@@ -44,7 +44,7 @@ public class CalendarYearButton : ContentControl
         {
             case CalendarViewMode.Year:
                 Content = DateTimeHelper.GetCurrentDateTimeFormatInfo()
-                    .AbbreviatedMonthNames[CalendarContext.Month ?? 0];
+                    .AbbreviatedMonthNames[(CalendarContext.Month - 1) ?? 0];
                 break;
             case CalendarViewMode.Decade:
                 Content = CalendarContext.Year <= 0 || CalendarContext.Year > 9999