diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index bf66b239..c249f46d 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/Bin/SunnyUI.pdb b/Bin/SunnyUI.pdb
index b6ddc8e3..c328ca77 100644
Binary files a/Bin/SunnyUI.pdb and b/Bin/SunnyUI.pdb differ
diff --git a/SunnyUI/Charts/UIBarChart.cs b/SunnyUI/Charts/UIBarChart.cs
index d24388b5..7efe8c1a 100644
--- a/SunnyUI/Charts/UIBarChart.cs
+++ b/SunnyUI/Charts/UIBarChart.cs
@@ -109,7 +109,7 @@ namespace Sunny.UI
 
                     float xx = barX + x1 * (i + 1) + x2 * i + x1;
                     float ww = Math.Min(x2, series.MaxWidth);
-                    xx = xx - ww / 2.0f;
+                    xx -= ww / 2.0f;
 
                     if (YAxisStart >= 0)
                     {
diff --git a/SunnyUI/Charts/UIBarChartEx.cs b/SunnyUI/Charts/UIBarChartEx.cs
index 0a374e54..8bce1e86 100644
--- a/SunnyUI/Charts/UIBarChartEx.cs
+++ b/SunnyUI/Charts/UIBarChartEx.cs
@@ -100,7 +100,7 @@ namespace Sunny.UI
 
                         float xx = barX + DrawSize.Width * 1.0f / DataCount / 2;
                         float ww = Math.Min(x2, series.MaxWidth);
-                        xx = xx - ww / 2.0f;
+                        xx -= ww / 2.0f;
 
                         if (YAxisStart >= 0)
                         {
@@ -187,7 +187,7 @@ namespace Sunny.UI
                             xx = barX + x1 * ((j + 1) * 3 - 1);
 
                         float ww = Math.Min(x2, series.MaxWidth);
-                        xx = xx - ww / 2.0f;
+                        xx -= ww / 2.0f;
 
                         if (YAxisStart >= 0)
                         {
@@ -442,7 +442,7 @@ namespace Sunny.UI
                     {
                         g.DrawLine(ChartStyle.ForeColor, DrawOrigin.X, start, Width - BarOption.Grid.Right, start);
 
-                        float lineStart = DrawOrigin.X;
+                        // float lineStart = DrawOrigin.X;
                         // for (int j = 0; j <= BarOption.Series.Count; j++)
                         // {
                         //     g.DrawLine(ChartStyle.ForeColor, lineStart, start, lineStart, start + BarOption.XAxis.AxisTick.Length);
diff --git a/SunnyUI/Controls/UIDataGridView.cs b/SunnyUI/Controls/UIDataGridView.cs
index 483cebcc..11de54bb 100644
--- a/SunnyUI/Controls/UIDataGridView.cs
+++ b/SunnyUI/Controls/UIDataGridView.cs
@@ -173,8 +173,8 @@ namespace Sunny.UI
             {
                 HBar.Maximum = HorizontalScrollBar.Maximum;
                 HBar.Value = HorizontalScrollBar.Value;
-                HBar.BoundsWidth = HorizontalScrollBar.Bounds.Width;
-                HBar.LargeChange = HorizontalScrollBar.Maximum / VisibleColumnCount();
+                HBar.BoundsWidth = HorizontalScrollBar.LargeChange;
+                HBar.LargeChange = HorizontalScrollBar.LargeChange;//.Maximum / VisibleColumnCount();
                 HBar.Visible = true;
             }
             else
diff --git a/SunnyUI/Controls/UIImageListBox.cs b/SunnyUI/Controls/UIImageListBox.cs
index 3c8ff9c8..1461764d 100644
--- a/SunnyUI/Controls/UIImageListBox.cs
+++ b/SunnyUI/Controls/UIImageListBox.cs
@@ -402,7 +402,7 @@ namespace Sunny.UI
 
             protected override void OnMeasureItem(MeasureItemEventArgs e)
             {
-                e.ItemHeight = e.ItemHeight + ItemHeight;
+                e.ItemHeight += ItemHeight;
             }
 
             /// <summary>
diff --git a/SunnyUI/Controls/UIListBox.cs b/SunnyUI/Controls/UIListBox.cs
index 8dd7ddb6..20b2deaf 100644
--- a/SunnyUI/Controls/UIListBox.cs
+++ b/SunnyUI/Controls/UIListBox.cs
@@ -569,7 +569,7 @@ namespace Sunny.UI
         protected override void OnMeasureItem(MeasureItemEventArgs e)
         {
             base.OnMeasureItem(e);
-            e.ItemHeight = e.ItemHeight + ItemHeight;
+            e.ItemHeight += ItemHeight;
         }
 
         public void SelectedFirst()