diff --git a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
index dce3ad39..015a5216 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
@@ -288,7 +288,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Common/GetSelect/ScoreMethod?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/ScoreMethod?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamPaperColumn()
             {
@@ -343,7 +343,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamPaperColumn()
             {
@@ -353,7 +353,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Common/GetSelect/Ghre_CourseScene?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/Ghre_CourseScene?FW=DOTNETCORE"
             }
         };
         #endregion
@@ -370,7 +370,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 multipleSelect = false,
                 editable = true,
                 displayType=1,
-                dataSource = "api/Ghre_Course/QuerySelect?FW=DOTNETCORE"
+                dataSource = "/api/Ghre_Course/QuerySelect?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamPaperColumn()
             {
@@ -381,7 +381,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 multipleSelect = false,
                 editable = true,
                 displayType=2,
-                dataSource = "api/Common/GetSelect/QuestionType?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/QuestionType?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamPaperColumn()
             {
@@ -393,7 +393,7 @@ public class Ghre_ExamPaperServices : BaseServices<Ghre_ExamPaper, Ghre_ExamPape
                 editable = true,
                 displayType=2,
                 width=80,
-                dataSource = "api/Common/GetSelect/DifficultyLevel?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/DifficultyLevel?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamPaperColumn()
             {
diff --git a/Tiobon.Core.Services/Ghre/Ghre_ExamServices.cs b/Tiobon.Core.Services/Ghre/Ghre_ExamServices.cs
index 85bd208f..95d1c093 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_ExamServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_ExamServices.cs
@@ -836,7 +836,7 @@ public class Ghre_ExamServices : BaseServices<Ghre_Exam, Ghre_ExamDto, InsertGhr
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamColumn()
             {
@@ -846,7 +846,7 @@ public class Ghre_ExamServices : BaseServices<Ghre_Exam, Ghre_ExamDto, InsertGhr
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Common/GetSelect/Ghre_CourseScene?FW=DOTNETCORE"
+                dataSource = "/api/Common/GetSelect/Ghre_CourseScene?FW=DOTNETCORE"
             },
             new DefaultGhre_ExamColumn()
             {
@@ -856,7 +856,7 @@ public class Ghre_ExamServices : BaseServices<Ghre_Exam, Ghre_ExamDto, InsertGhr
                 required = true,
                 multipleSelect = false,
                 editable = true,
-                dataSource = "api/Ghre_ExamPaper/GetSelect?FW=DOTNETCORE&linkId="
+                dataSource = "/api/Ghre_ExamPaper/GetSelect?FW=DOTNETCORE&linkId="
             },
             new DefaultGhre_ExamColumn()
             {
diff --git a/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs b/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
index db0e5aea..502d46dd 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
@@ -264,7 +264,7 @@ public class Ghre_QuestionServices : BaseServices<Ghre_Question, Ghre_QuestionDt
             required = true,
             multipleSelect = true,
             editable = true,
-            dataSource = "api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
+            dataSource = "/api/Common/GetSelect/Ghre_Course?FW=DOTNETCORE"
         });
         data.Column.Add(new FromGhre_QuestionColumn()
         {