diff --git a/SunnyUI/Controls/UIComboDataGridView.cs b/SunnyUI/Controls/UIComboDataGridView.cs
index 1325127a..49468fc2 100644
--- a/SunnyUI/Controls/UIComboDataGridView.cs
+++ b/SunnyUI/Controls/UIComboDataGridView.cs
@@ -20,7 +20,7 @@
  * 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
  * 2022-04-16: V3.1.3 增加行多选
- * 2022-06-16: V3.2.0 增加下拉框宽度
+ * 2022-06-16: V3.2.0 增加下拉框宽度、高度
 ******************************************************************************/
 
 using System;
@@ -48,13 +48,18 @@ namespace Sunny.UI
             this.ResumeLayout(false);
             this.PerformLayout();
 
-            DropDownWidth = 333;
+            DropDownWidth = 500;
+            DropDownHeight = 300;
         }
 
-        [DefaultValue(333)]
+        [DefaultValue(500)]
         [Description("下拉框宽度"), Category("SunnyUI")]
         public int DropDownWidth { get; set; }
 
+        [DefaultValue(300)]
+        [Description("下拉框高度"), Category("SunnyUI")]
+        public int DropDownHeight { get; set; }
+
         private void UIComboDataGridView_ButtonClick(object sender, EventArgs e)
         {
             item.FilterColumnName = FilterColumnName;
@@ -64,7 +69,7 @@ namespace Sunny.UI
             item.SetDPIScale();
             item.Translate();
             //ItemForm.Show(this);
-            ItemForm.Show(this, new Size(DropDownWidth < Width ? Width : DropDownWidth, CalcItemFormHeight()));
+            ItemForm.Show(this, new Size(DropDownWidth < Width ? Width : DropDownWidth, DropDownHeight));
         }
 
         [DefaultValue(typeof(Size), "320, 240"), Description("下拉弹框界面大小"), Category("SunnyUI")]
diff --git a/SunnyUI/Controls/UIComboTreeView.cs b/SunnyUI/Controls/UIComboTreeView.cs
index 2aba97a3..61e141c7 100644
--- a/SunnyUI/Controls/UIComboTreeView.cs
+++ b/SunnyUI/Controls/UIComboTreeView.cs
@@ -19,6 +19,7 @@
  * 2021-07-29: V3.0.5 修复SelectedNode=null的问题
  * 2021-11-11: V3.0.0 增加文件说明
  * 2022-05-15: V3.0.8 显示CheckBoxes时自己选中节点文字可切换状态
+ * 2022-06-16: V3.2.0 增加下拉框宽度、高度
 ******************************************************************************/
 
 using System;
@@ -53,8 +54,18 @@ namespace Sunny.UI
             this.ResumeLayout(false);
             this.PerformLayout();
 
+            DropDownWidth = 250;
+            DropDownHeight = 220;
         }
 
+        [DefaultValue(250)]
+        [Description("下拉框宽度"), Category("SunnyUI")]
+        public int DropDownWidth { get; set; }
+
+        [DefaultValue(220)]
+        [Description("下拉框高度"), Category("SunnyUI")]
+        public int DropDownHeight { get; set; }
+
         public Control ExToolTipControl()
         {
             return edit;
@@ -180,7 +191,8 @@ namespace Sunny.UI
             item.CanSelectRootNode = CanSelectRootNode;
             item.Translate();
             item.SetDPIScale();
-            ItemForm.Show(this);
+            //ItemForm.Show(this);
+            ItemForm.Show(this, new Size(DropDownWidth < Width ? Width : DropDownWidth, DropDownHeight));
         }
 
         [DefaultValue(typeof(Size), "250, 220"), Description("下拉弹框界面大小"), Category("SunnyUI")]