diff --git a/designer_chart/src/com/fr/design/chart/axis/MinMaxValuePane.java b/designer_chart/src/com/fr/design/chart/axis/MinMaxValuePane.java
index 4a9be221d..88a6b528e 100644
--- a/designer_chart/src/com/fr/design/chart/axis/MinMaxValuePane.java
+++ b/designer_chart/src/com/fr/design/chart/axis/MinMaxValuePane.java
@@ -42,24 +42,34 @@ public class MinMaxValuePane extends JPanel {
 		double p = TableLayout.PREFERRED;
 		double f = TableLayout.FILL;
 		double[] columnSize = { p, f };
-		double[] rowSize = { p, p, p, p};
 
-		Component[][] components  = getPanelComponents();
-		JPanel panel = TableLayoutHelper.createTableLayoutPane(components ,rowSize,columnSize);
+		Component[][] components = getPanelComponents();
+		JPanel panel = TableLayoutHelper.createTableLayoutPane(components, getRowSize(p), columnSize);
 		this.setLayout(new BorderLayout());
-		this.add(panel,BorderLayout.CENTER);
-
-		for(int i = 0; i < components.length; i++) {
-			((UICheckBox)components[i][0]).addActionListener(new ActionListener() {
+		this.add(panel, BorderLayout.CENTER);
+		addComponentListener(components);
+	}
 
-				@Override
-				public void actionPerformed(ActionEvent e) {
-					checkBoxUse();
-				}
-			});
-			ChartSwingUtils.addListener((UICheckBox)components[i][0], (UITextField)components[i][1]);
-		}
+	protected double[] getRowSize(double p) {
+		return new double[]{p, p, p, p};
 	}
+    protected void addComponentListener(Component[][] components) {
+        for (int i = 0; i < components.length; i++) {
+            addListener((UICheckBox) components[i][0]);
+            ChartSwingUtils.addListener((UICheckBox) components[i][0], (UITextField) components[i][1]);
+        }
+    }
+
+    protected void  addListener(UICheckBox checkBox) {
+        checkBox.addActionListener(new ActionListener() {
+
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                checkBoxUse();
+            }
+        });
+    }
+
 	protected Component[][] getPanelComponents() {
 		return 	new Component[][]{
 				new Component[]{minCheckBox, minValueField},
@@ -100,7 +110,7 @@ public class MinMaxValuePane extends JPanel {
 			if(axis.getMinValue() != null) {
 				minValueField.setText(axis.getMinValue().toString());
 			}
-		} 
+		}
 
 		// 最大值
 		if (axis.isCustomMaxValue()) {
@@ -108,7 +118,7 @@ public class MinMaxValuePane extends JPanel {
 			if(axis.getMaxValue() != null) {
 				maxValueField.setText(axis.getMaxValue().toString());
 			}
-		} 
+		}
 
 		// 主次刻度单位
 		if (axis.isCustomMainUnit()) {
@@ -116,7 +126,7 @@ public class MinMaxValuePane extends JPanel {
 			if(axis.getMainUnit() != null) {
 				mainUnitField.setText(axis.getMainUnit().toString());
 			}
-		} 
+		}
 
 		if(axis.isCustomSecUnit()) {
 			isCustomSecUnitBox.setSelected(true);