diff --git a/Rs.DeweyTester/FormMain.cs b/Rs.DeweyTester/FormMain.cs
index afd4059..44e3863 100644
--- a/Rs.DeweyTester/FormMain.cs
+++ b/Rs.DeweyTester/FormMain.cs
@@ -287,6 +287,10 @@ namespace Rs.MotionPlat
             };
         }
         
+        public void ReloadParameters()
+        {
+            BindParameter();
+        }
 
         void BindParameter()
         {
diff --git a/Rs.DeweyTester/Home.cs b/Rs.DeweyTester/Home.cs
index 99fbc12..70e35eb 100644
--- a/Rs.DeweyTester/Home.cs
+++ b/Rs.DeweyTester/Home.cs
@@ -136,9 +136,10 @@ namespace Rs.MotionPlat
                 ClearSelectBtn();
                 button.Selected = true;
                 CloseSubWindow();
-                BaseForm form = ActiveForms.Get("FormMain");
+                FormMain form = (FormMain)ActiveForms.Get("FormMain");
                 if(form!=null)
                 {
+                    form.ReloadParameters();
                     panel_main.Controls.Add(form);
                     form.TopLevel = false;
                     form.Dock = DockStyle.Fill;
diff --git a/Rs.DeweyTester/SysConfig/CommonConfig.cs b/Rs.DeweyTester/SysConfig/CommonConfig.cs
index 4146ed7..722e803 100644
--- a/Rs.DeweyTester/SysConfig/CommonConfig.cs
+++ b/Rs.DeweyTester/SysConfig/CommonConfig.cs
@@ -212,9 +212,39 @@ namespace Rs.MotionPlat.SysConfig
 
         private void cboxFixture_CheckedChanged(object sender, EventArgs e)
         {
+            int num = 0;
             CheckBox cbox = (CheckBox)sender;
             SysConfigParam.Update(cbox.Name.Replace("cbox", ""), cbox.Checked.ToString());
             TestFixtureManager.Instance.GetTestFixture(int.Parse(cbox.Text.Replace("TC", "").ToString())).Enable = cbox.Checked;
+            if(cboxEnableTC1.Checked)
+            {
+                num++;
+            }
+            if (cboxEnableTC2.Checked)
+            {
+                num++;
+            }
+            if (cboxEnableTC3.Checked)
+            {
+                num++;
+            }
+            if (cboxEnableTC4.Checked)
+            {
+                num++;
+            }
+            if (cboxEnableTC5.Checked)
+            {
+                num++;
+            }
+            if (cboxEnableTC6.Checked)
+            {
+                num++;
+            }
+            if(num==1)
+            {
+                SysConfigParam.Update("TestMethod", "A");
+                SysConfigParam.Init();
+            }
         }