diff --git a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/common/Pager.java b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/common/Pager.java
index 6035ea3..b961226 100644
--- a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/common/Pager.java
+++ b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/common/Pager.java
@@ -101,6 +101,12 @@ public class Pager {
     }
 
     public int getTotalPages() {
+        if(pageSize > 0 && totalRows > 0){
+            totalPages = totalRows / pageSize;
+            if (totalRows % pageSize > 0) {
+                totalPages++;
+            }
+        }
         return totalPages;
     }
 
@@ -109,6 +115,13 @@ public class Pager {
     }
 
     public int getStartRow() {
+        if(pageSize > 0){
+            if(currentPage >= 1){
+                return currentPage * pageSize - pageSize;
+            }else {
+                return 0;
+            }
+        }
         return startRow;
     }
 
@@ -125,6 +138,13 @@ public class Pager {
     }
 
     public int getEndRow() {
+        if(pageSize > 0){
+            if(currentPage > 1){
+                return currentPage * pageSize;
+            }else {
+                return pageSize;
+            }
+        }
         return endRow;
     }
 
diff --git a/modules/i3plus-pojo-form/src/main/java/cn/estsh/i3plus/pojo/form/bean/BfDataObjectProperty.java b/modules/i3plus-pojo-form/src/main/java/cn/estsh/i3plus/pojo/form/bean/BfDataObjectProperty.java
index 45b9c64..8e246ce 100644
--- a/modules/i3plus-pojo-form/src/main/java/cn/estsh/i3plus/pojo/form/bean/BfDataObjectProperty.java
+++ b/modules/i3plus-pojo-form/src/main/java/cn/estsh/i3plus/pojo/form/bean/BfDataObjectProperty.java
@@ -62,6 +62,10 @@ public class BfDataObjectProperty extends BaseBean {
     @ApiParam(value ="是否主键")
     private Integer isPrimaryKey;
 
+    @Column(name="IS_NULLABLE")
+    @ApiParam(value = "是否允许为空")
+    private Integer isNullable;
+
     // 字段长度
     @ApiParam(value = "字段长度")
     @Column(name="OBJECT_COLUMN_PRECISION")
diff --git a/modules/i3plus-pojo-model/src/main/java/cn/estsh/i3plus/pojo/model/form/ElementModel.java b/modules/i3plus-pojo-model/src/main/java/cn/estsh/i3plus/pojo/model/form/ElementModel.java
index 822b260..9954438 100644
--- a/modules/i3plus-pojo-model/src/main/java/cn/estsh/i3plus/pojo/model/form/ElementModel.java
+++ b/modules/i3plus-pojo-model/src/main/java/cn/estsh/i3plus/pojo/model/form/ElementModel.java
@@ -1,6 +1,7 @@
 package cn.estsh.i3plus.pojo.model.form;
 
 import cn.estsh.i3plus.pojo.base.annotation.AnnoOutputColumn;
+import cn.estsh.i3plus.pojo.base.common.Pager;
 import cn.estsh.i3plus.pojo.form.bean.*;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
@@ -56,6 +57,9 @@ public class ElementModel{
     @ApiParam(value = "元素类型")
     private Integer elementType;
 
+    @ApiParam(value = "分页信息")
+    private Pager pager;
+
     @ApiParam(value = "排序属性")
     public String orderByParam;