受影響的行-1的ExecuteReader - 像查詢

Question

我使用的是像查詢其上調試使我受影響的行爲-1，而當我在SQL Server中運行相同的查詢返回我1個受影響的行

public ResultClass fn_GetUserMasterSearch(UserMasterClass objusmspass) 
    { 
     UserMasterClass objusms = null; 
     eslist<UserMasterClass> objusList = null; 

     try 
     { 
      objConnection = new SqlConnection(ConfigurationManager.AppSettings["connectionstring"].ToString()); 
      objConnection.Open(); 
      StringBuilder strquery = new StringBuilder(); 
      StringBuilder strWhere = new StringBuilder(); 
      objCommand = new SqlCommand(); 
      strquery.Append("select user_id,user_name,user_type,default_company_code,created_by,created_on,updated_on from user_master where"); 

      if (objusmspass.struser_name != "") 
      { 
       strWhere.Append(" user_name like @user_name "); 
       objCommand.Parameters.AddWithValue("@user_name", objusmspass.struser_name); 
      } 
      if (objusmspass.struser_type != "") 
      { 
       if (strWhere.ToString() != null) 
        strWhere.Append(" and "); 
       strWhere.Append(" user_type like @user_type "); 
       objCommand.Parameters.AddWithValue("@user_type", objusmspass.struser_type); 
      } 
      if (objusmspass.strcompany_code != "") 
      { 
       if (strWhere.ToString() != null) 
        strWhere.Append(" and "); 
       strWhere.Append(" company_code like @company_code "); 
       objCommand.Parameters.AddWithValue("@company_code", objusmspass.strcompany_code); 
      } 

      if (objusmspass.icreated_by != 0) 
      { 
       if (strWhere.ToString() != null) 
        strWhere.Append(" and "); 
       strWhere.Append(" created_by like @created_by "); 
       objCommand.Parameters.AddWithValue("@created_by", objusmspass.icreated_by); 
      } 
      if (objusmspass.dtcreated_on != null) 
      { 
       if (strWhere.ToString() != null) 
        strWhere.Append(" and "); 
       strWhere.Append(" created_on like @created_on "); 
       objCommand.Parameters.AddWithValue("@created_on", objusmspass.dtcreated_on); 
      } 
      if (objusmspass.dtupdated_on != null) 
      { 
       if (strWhere.ToString() != null) 
        strWhere.Append(" and "); 
       strWhere.Append(" updated_on like @updated_on "); 
       objCommand.Parameters.AddWithValue("@updated_on", objusmspass.dtupdated_on); 
      } 
      objCommand.CommandText = strquery.ToString() + strWhere.ToString(); 
      objCommand.Connection = objConnection;   
      objReader = objCommand.ExecuteReader(); 

      objusList = new eslist<UserMasterClass>(); 

      while(objReader.Read()) 
      { 
       objusms = new UserMasterClass(); 
       objusms.iuser_id = Convert.ToInt32(objReader["user_id"].ToString().Trim()); 
       objusms.struser_name = objReader["user_name"].ToString().Trim(); 
       objusms.struser_type = objReader["user_type"].ToString().Trim(); 
       objusms.strcompany_code = objReader["default_company_code"].ToString().Trim(); 
       objusms.icreated_by = Convert.ToInt32(objReader["created_by"].ToString().Trim()); 
       objusms.dtcreated_on = objReader["created_on"]==DBNull.Value?DateTime.Now:Convert.ToDateTime(objReader["created_on"].ToString().Trim()); 
       objusms.dtupdated_on = objReader["updated_on"]==DBNull.Value?DateTime.Now:Convert.ToDateTime(objReader["updated_on"].ToString().Trim()); 
       objusList.Add(objusms); 

      } 

      return new ResultClass(true, "User Exist", objusList, int.Parse(objReader["user_id"].ToString()), null); 
     } 

我收到此錯誤

while(objReader.Read()) 

調試結果顯示受影響的行爲-1。

感謝，

Answer 1

嘗試以下操作：

而不是使用：

objCommand.Parameters.AddWithValue("@user_name", objusmspass.struser_name); 

使用：

objCommand.Parameters.Add(new SqlParameter("@user_name", DbType.Int){ Value = objusmspass.struser_name})); 

也許是與字段的類型的問題。您必須通過正確類型的數據庫字段替換示例中的DbType.Int。