diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index 2da7f6a6..a0b92fb2 100644
Binary files a/Bin/net40/SunnyUI.Demo.exe and b/Bin/net40/SunnyUI.Demo.exe differ
diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 3e349fa9..adc4ad7a 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs b/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
index e279f03d..5895d5f3 100644
--- a/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
+++ b/SunnyUI/Controls/DropItem/UIComboDataGridViewItem.cs
@@ -19,6 +19,18 @@ namespace Sunny.UI
         {
             InitializeComponent();
             Translate();
+            dataGridView.CellDoubleClick += DataGridView_CellDoubleClick;
+            edtFilter.TextChanged += EdtFilter_TextChanged;
+        }
+
+        private void EdtFilter_TextChanged(object sender, System.EventArgs e)
+        {
+            btnSearch_Click(null, null);
+        }
+
+        private void DataGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
+        {
+            btnOK.PerformClick();
         }
 
         public override void SetDPIScale()
diff --git a/SunnyUI/Controls/UIComboDataGridView.cs b/SunnyUI/Controls/UIComboDataGridView.cs
index 6e2da401..d6066302 100644
--- a/SunnyUI/Controls/UIComboDataGridView.cs
+++ b/SunnyUI/Controls/UIComboDataGridView.cs
@@ -18,6 +18,7 @@
  *
  * 2020-09-01: V3.0.6 增加文件说明
  * 2021-11-05: V3.0.8 增加过滤
+ * 2022-03-22: V3.1.1 增加自动过滤、单元格双击选中
 ******************************************************************************/
 
 using System;