diff --git a/Rs.Controls/RsTray.cs b/Rs.Controls/RsTray.cs
index 6e36976..6f3a27a 100644
--- a/Rs.Controls/RsTray.cs
+++ b/Rs.Controls/RsTray.cs
@@ -398,6 +398,9 @@ namespace Rs.Controls
             }
             else if (SortDir == ESortDir.RightToLeft)
             {
+                ShowColNumber = ShowRowNumber = false;
+                slotWidth = (this.panel2.Width) / ColumnNum;
+                slotHeight = (this.panel2.Height) / RowNum;
                 for (int r = 0; r < RowNum; r++)
                 {
                     for (int c = 0; c < ColumnNum; c++)
@@ -412,6 +415,9 @@ namespace Rs.Controls
             }
             else if (sortDir == ESortDir.RightTopToBottom)
             {
+                ShowColNumber = ShowRowNumber = false;
+                slotWidth = (this.panel2.Width) / ColumnNum;
+                slotHeight = (this.panel2.Height) / RowNum;
                 //从列开始画
                 for (int c = ColumnNum; c > 0; c--)
                 {
@@ -429,26 +435,38 @@ namespace Rs.Controls
             }
             else if (sortDir == ESortDir.LeftBottomToTop)
             {
+                ShowColNumber = ShowRowNumber = false;
+                slotWidth = (this.panel2.Width ) / ColumnNum;
+                slotHeight = (this.panel2.Height ) / RowNum;
                 //从列开始画
-                for (int r = 0; r < RowNum; r++)
+                for (int c = 0; c < ColumnNum; c++)
                 {
-                    for (int c = ColumnNum; c > 0; c--)
+                    for (int r = RowNum; r > 0; r--)
                     {
                         index++;
                         if (traySlotsDic.ContainsKey(index))
                         {
-                            float y = 0;
-                            float x = LeftSpaceWidth + slotWidth * r;
-                            if(!ShowColNumber)
-                            {
-                                y = slotHeight * c - TopSpaceHeight / 2;
-                            }
-                            else
-                            {
-                                y = slotHeight * c;
-                            }
+                            float x =  slotWidth * c;
+                            float y = slotHeight * (r-1);
                             traySlotsDic[index].Bound = new RectangleF(x, y, (int)slotWidth - ColSpace, (int)slotHeight - RowSpace);
                         }
+
+
+                        //index++;
+                        //if (traySlotsDic.ContainsKey(index))
+                        //{
+                        //    float y = 0;
+                        //    float x = LeftSpaceWidth + slotWidth * r;
+                        //    if(!ShowColNumber)
+                        //    {
+                        //        y = slotHeight * c - TopSpaceHeight / 2;
+                        //    }
+                        //    else
+                        //    {
+                        //        y = slotHeight * c;
+                        //    }
+                        //    traySlotsDic[index].Bound = new RectangleF(x, y, (int)slotWidth - ColSpace, (int)slotHeight - RowSpace);
+                        //}
                     }
                 }
             }
@@ -458,6 +476,7 @@ namespace Rs.Controls
 
         private void panel2_Paint(object sender, PaintEventArgs e)
         {
+            if(this.panel2.Width<=0 || this.panel2.Height<=0) { return; }
             this.DoubleBuffered = true;
             Graphics g = this.panel2.CreateGraphics();
             drawImage = new Bitmap(this.panel2.Width, this.panel2.Height);