关于 .net 中使用IBatis的问题，在线等

小弟在做一个用IBatis技术的.net项目，现在有一个问题，弄了一通宵也弄不出来，在线等回复，请大家帮忙看看
sqlMap:
<?xml version="1.0" encoding="utf-8" ?>
<sqlMap namespace="PcDepartmentTMap" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://ibatis.apache.org/mapping">

  <alias>

    <typeAlias alias="Department" type="Permissions.Domain.Department,Domain" />

  </alias>

  <resultMaps>

    <resultMap id="PcDepartmentTResult" class="Department">
      <result property="Id" column="ID" type="int" />
      <result property="Name" column="NAME" type="string" />
      <result property="Code" column="CODE" type="string" />
      <result property="Description" column="DESCRIPTION" type="string" />
      <result property="SuperiorDeptId" column="SUPERIORDEPTID" type="int"/>
      <result property="InUse" column="INUSE" type="string" />
    </resultMap>
  </resultMaps>
  <statements>

    <select id="SelectPcDepartmentT" parameterClass="int"  resultMap="PcDepartmentTResult">
      SELECT ID AS Id,NAME AS Name,CODE AS Code,DESCRIPTION AS Description,SUPERIORDEPTID AS SuperiorDeptId,INUSE AS InUse
      FROM PC_DEPARTMENT_T
      where id = #value#
      
        
      
    </select>
    <insert id="InsertPcDepartmentT" parameterClass="Department">
      INSERT INTO PC_DEPARTMENT_T
      (ID,NAME,CODE,DESCRIPTION,SUPERIORDEPTID,INUSE)
      VALUES(s_pc_department_t.nextval,#Name#,#Code#,#Description#,decode(#SuperiorDeptId#,0,null,#SuperiorDeptId#),#InUse#)
    </insert>
    <update id="UpdatePcDepartmentT" parameterClass="Department">
      UPDATE PC_DEPARTMENT_T
      SET NAME=#Name#,CODE=#Code#,DESCRIPTION=#Description#,SUPERIORDEPTID=decode(#SuperiorDeptId#,0,null,#SuperiorDeptId#),INUSE=#InUse#
      WHERE ID = #Id#
    </update>
    <delete id="DeletePcDepartmentT" parameterClass="int">
      DELETE FROM PC_DEPARTMENT_T
      WHERE ID = #value#
    </delete>
  </statements>
</sqlMap>
Dao:
namespace Permissions.DataAccess
{
    public class DepartmentDao : DaoSupport<Department,int>,  IDepartmentDao
    {
        public Department FindByPk(int pk)
        {
            ISqlMapper sqlMap = Mapper.Instance();
            return sqlMap.QueryForObject("SelectPcDepartmentT", pk) as Department;
        }

        public IList<Department> FindSubDepartments(int superDeptId)
        {
            ISqlMapper sqlMap = Mapper.Instance();

            return sqlMap.QueryForList<Department>("SelectPcDepartmentT", superDeptId);
        }

        public bool DeleteDepartmentByPk(int pk)
        {
            ISqlMapper sqlMap = Mapper.Instance();

            try
            {
                sqlMap.Delete("DeletePcDepartmentT", pk);
            }
            catch
            {
                return false;
            }

            return true;
        }

        public bool UpdateItem(Department department)
        {
            ISqlMapper sqlMap = Mapper.Instance();

            try
            {
                sqlMap.Update("UpdatePcDepartmentT", department);
            }

            catch
            {
                return false;
            }

            return true;
        }

        public bool CreateItem(Department department)
        {
            ISqlMapper sqlMap = Mapper.Instance();

            try
            {
                sqlMap.Insert("InsertPcDepartmentT", department);
            }
            catch
            {
                return false;
            }

            return true;
        }
    }
}

问题如下：
    1、执行语句return sqlMap.QueryForObject("SelectPcDepartmentT", pk) as Department;总是返回空
    2、执行语句sqlMap.Delete("DeletePcDepartmentT", pk);直接就卡住，不能执行下句了
我的分析：
    1、可以肯定问题就处在上述两条语句上，因为注释掉之后跑的很畅通
    2、数据库已经连接上，没有问题

小弟没有分，我一通宵没睡了，在线等，希望大家能帮帮忙，谢谢大家乐先 --------------------编程问答-------------------- parameterClass="System.Int32"

那两个出错的你改过来试试看

补充：.NET技术 ,  C#