diff --git a/Bin/SunnyUI.Demo.exe b/Bin/SunnyUI.Demo.exe
index 1a10b24c..eed40046 100644
Binary files a/Bin/SunnyUI.Demo.exe and b/Bin/SunnyUI.Demo.exe differ
diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index 6e1fc2fd..7117b621 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/FMain.Designer.cs b/SunnyUI.Demo/FMain.Designer.cs
index a7e412b4..48ba6da1 100644
--- a/SunnyUI.Demo/FMain.Designer.cs
+++ b/SunnyUI.Demo/FMain.Designer.cs
@@ -105,6 +105,7 @@
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(1024, 720);
             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.MaximumSize = new System.Drawing.Size(1366, 728);
             this.MinimumSize = new System.Drawing.Size(1024, 720);
             this.Name = "FMain";
             this.Padding = new System.Windows.Forms.Padding(2, 35, 2, 2);
diff --git a/SunnyUI/Controls/UIDataGridView.cs b/SunnyUI/Controls/UIDataGridView.cs
index 62536372..07fbb79b 100644
--- a/SunnyUI/Controls/UIDataGridView.cs
+++ b/SunnyUI/Controls/UIDataGridView.cs
@@ -232,6 +232,18 @@ namespace Sunny.UI
             SetBarPosition();
         }
 
+        protected override void OnColumnStateChanged(DataGridViewColumnStateChangedEventArgs e)
+        {
+            base.OnColumnStateChanged(e);
+            SetScrollInfo();
+        }
+
+        protected override void OnColumnRemoved(DataGridViewColumnEventArgs e)
+        {
+            base.OnColumnRemoved(e);
+            SetScrollInfo();
+        }
+
         private void SetBarPosition()
         {
             if (ShowRect)
@@ -273,6 +285,8 @@ namespace Sunny.UI
             {
                 ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
             }
+
+            SetScrollInfo();
         }
 
         private UIStyle _style = UIStyle.Blue;
diff --git a/SunnyUI/Static/UImage.cs b/SunnyUI/Static/UImage.cs
index d9631bac..3792059e 100644
--- a/SunnyUI/Static/UImage.cs
+++ b/SunnyUI/Static/UImage.cs
@@ -53,7 +53,7 @@ namespace Sunny.UI
             return bmp;
         }
 
-        public static ImageList GetToolbarImageList(Type type, Bitmap bitmap, Size imageSize, Color transparentColor)
+        public static ImageList GetToolbarImageList(Type type, Image bitmap, Size imageSize, Color transparentColor)
         {
             ImageList imageList = new ImageList();
             imageList.ImageSize = imageSize;
@@ -63,7 +63,7 @@ namespace Sunny.UI
             return imageList;
         }
 
-        public static Bitmap Split(this Bitmap image, int size, UIShape shape)
+        public static Bitmap Split(this Image image, int size, UIShape shape)
         {
             //截图画板
             Bitmap result = new Bitmap(size, size);
@@ -94,7 +94,7 @@ namespace Sunny.UI
             return result;
         }
 
-        public static Bitmap Split(this Bitmap image, GraphicsPath path)
+        public static Bitmap Split(this Image image, GraphicsPath path)
         {
             //截图画板
             Bitmap result = new Bitmap(image.Width, image.Height);
@@ -201,7 +201,7 @@ namespace Sunny.UI
         /// <param name="angle">角度</param>
         /// <param name="bkColor">背景色</param>
         /// <returns>图片</returns>
-        public static Bitmap Rotate(this Bitmap bmp, float angle, Color bkColor)
+        public static Bitmap Rotate(this Image bmp, float angle, Color bkColor)
         {
             int w = bmp.Width;
             int h = bmp.Height;
@@ -314,7 +314,7 @@ namespace Sunny.UI
         /// <param name="newW">宽度</param>
         /// <param name="newH">高度</param>
         /// <returns>新图片</returns>
-        public static Bitmap ResizeImage(this Bitmap bmp, int newW, int newH)
+        public static Bitmap ResizeImage(this Image bmp, int newW, int newH)
         {
             if (bmp == null)
             {