From 51c6da4833f2fb3e1615475e680c7a77e67f413e Mon Sep 17 00:00:00 2001
From: Sunny <yhuse@163.com>
Date: Tue, 27 Aug 2024 14:14:36 +0800
Subject: [PATCH] =?UTF-8?q?*=20UIDataGridView:=20=E5=A2=9E=E5=8A=A0?=
 =?UTF-8?q?=E5=B1=9E=E6=80=A7AutoScrollToBottom=EF=BC=8C=E6=95=B0=E6=8D=AE?=
 =?UTF-8?q?=E6=9B=B4=E6=96=B0=E6=97=B6=E6=98=AF=E5=90=A6=E8=87=AA=E5=8A=A8?=
 =?UTF-8?q?=E6=BB=9A=E5=8A=A8=E5=88=B0=E6=9C=80=E5=90=8E=E4=B8=80=E8=A1=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 SunnyUI/Controls/UIDataGridView.cs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/SunnyUI/Controls/UIDataGridView.cs b/SunnyUI/Controls/UIDataGridView.cs
index 7c21fddd..6b788ced 100644
--- a/SunnyUI/Controls/UIDataGridView.cs
+++ b/SunnyUI/Controls/UIDataGridView.cs
@@ -48,6 +48,7 @@
  * 2023-07-12: V3.4.0 修复了有冻结行时垂直滚动条点击时出错的问题
  * 2023-11-05: V3.5.2 重构主题
  * 2024-06-19: V3.6.7 增加AddDateTimeColumn，解决默认时间列不显示秒数的问题
+ * 2024-08-27: V3.7.0 增加属性AutoScrollToBottom，数据更新时是否自动滚动到最后一行
 ******************************************************************************/
 
 using System;
@@ -1041,6 +1042,26 @@ namespace Sunny.UI
 
             }
         }
+
+        [DefaultValue(false), Category("SunnyUI"), Description("指示当有新数据添加到DataGridView时，是否自动滚动到最后一行")]
+        public bool AutoScrollToBottom { get; set; }
+
+        protected override void OnDataBindingComplete(DataGridViewBindingCompleteEventArgs e)
+        {
+            base.OnDataBindingComplete(e);
+            //是否自动滚动到最后一行
+            if (AutoScrollToBottom && this.RowCount > 0)
+            {
+                //不选中单元格或行
+                this.CurrentCell = null;
+                //选中最后一行
+                this.Rows[this.RowCount - 1].Selected = true;
+                //滚动到最后一行
+                this.FirstDisplayedScrollingRowIndex = this.RowCount - 1;
+                //如果需要滚动到底部（右侧），使用下面的代码
+                //this.FirstDisplayedCell = this.Rows[this.RowCount - 1].Cells[this.Columns.Count - 1];
+            }
+        }
     }
 
     public static class UIDataGridViewHelper