小编zSy*_*sis的帖子

我一直在研究这段代码,出于某种原因,所有的if都让我疯狂了,还有一堆重复的代码.有更好的清洁方法吗？

public Program(string[] args)
    {
        try
        {
            WriteToLogFile("Starting ImportTask");
            if (args.Length == 0)
            {
                Import(DateTime.Now,DateTime.Now);
                MarkRecordsAsDeleted();
            }
            else if (args.Length == 1)
            {
                DateTime dateToImport;
                bool isValidDate = DateTime.TryParse(args[0], out dateToImport);
                if (isValidDate)
                {
                    Import(dateToImport,dateToImport);
                    MarkRecordsAsDeleted();
                }
                else
                    WriteToLogFile(String.Format("The Import date specified was invalid. - {0}", args[0]));
            }
            else if (args.Length == 2)
            {
                DateTime importStartDate;
                bool isValidStartDate = DateTime.TryParse(args[0], out importStartDate);
                DateTime importEndDate;
                bool isValidEndDate = DateTime.TryParse(args[0], out importEndDate);
                if (isValidStartDate && isValidEndDate)
                {
                    if (importStartDate > importEndDate)
                    { …

我目前的服务类看起来像这样

public class UserService : IUserService 
{
    private IAssignmentService _assignmentService;
    private ILocationService _locationService;
    private IUserDal _userDal;
    private IValidationDictionary _validationDictionary;
    public UserService(IAssignmentService assignmentService, ILocationService locationService, IValidationDictionary validationDictionary)
    {
        this._assignmentService = assignmentService;
        this._locationService = locationService;
        this._userDAL = new UserDal();
        this._validationDictionary = validationDictionary;
    }

    .....

    private void ValidateUser(IUser user)
    {
       if (_locationService.GetBy(user.Location.Id) == null)
          _validationDictionary.AddError("....");
       if (_assignmentService.GetBy(user.Assignment.Id) == null)
          _validationDictionary.AddError("....");
       .....
    }
}

和DAL类看起来像这样

public class UserDal: IUserDal
{
    private IAssignmentDal _assignmentDal;
    private ILocationDAL _locationDAL

    public UserDal()
    {
        this_assignmentDal = new AssignmentDal();
        this._locationDal …

我有一个看起来像这样的表:

     ID    |     STATUS    |     TYPE
----------------------------------------
x123       |      A        | High School
x122       |      I        | High School
x124       |      F        | High School
x125       |      A        | College
x126       |      I        | College
x127       |      F        | College
x128       |      F        | College

任何人都可以帮我提出一个oracle 8i的查询,显示这样的表

Type             |    Count A    |    Count I    |  Count F
------------------------------------------------------------
High School      |     1         |     1         |  1
College          |     1         |     1         |  2

谢谢!

我想知道是否有更简单的方法来做这样的事情？

    public int NonNullPropertiesCount(object entity)
    {
        if (entity == null) throw new ArgumentNullException("A null object was passed in");


        int nonNullPropertiesCount = 0;
        Type entityType = entity.GetType();

        foreach (var property in entityType.GetProperties())
        {
            if (property.GetValue(entity, null) != null)
                nonNullPropertiesCount = nonNullPropertiesCount+ 1;
        }


        return nonNullPropertiesCount;
    }

我继续在下面的代码中得到一个内存不足的例外,我想知道是否有什么东西可以阻止这种情况发生.

  private static List<string> MyIds { get; set; }
  private static object LockObject { get; set; }
  private static int Counter { get; set; }
  private static readonly NumOfThreads = 5;

  static void Main(string[] args)
  {
      try
      {
          Console.Clear();
          LockObject = new object();
          // Pull id's into memory (A list of around 1 million ids)
          MyIds = _repository.GetIds();
          for (int i = 0; i < NumOfThreads ; i++)
                ThreadPool.QueueUserWorkItem(new WaitCallback(DoWork), (object)i);

       }
       catch (Exception ex)
       {
           Console.WriteLine(ex.StackTrace);
       }
   }

   public …

我有一个程序，我在其中调用 jax-ws wsimport 函数生成的代码。它看起来是这样的：

HolidayService2 service = new HolidayService2();
HolidayService2Soap proxy = service.getHolidayService2Soap();
ArrayOfCountryCode countries = proxy.GetCountriesAvailable("USA");

proxy.GetCountriesAvailable 方法调用 Web 服务并返回国家/地区代码数组。有什么方法可以在我的应用程序中显示原始肥皂响应吗？

谢谢你的帮助

我正在尝试使用css3pie与asp.net mvc一起工作,但由于某种原因它不起作用.

我有一个包含内联css的视图,如下所示:

@{
    ViewBag.Title = "Home Page";
}

<div>


    <div class="contentWrapper" style="width:600px;margin:25px auto;">
        Hello World
        <input name="button" value="Button" class="button" type="button" />
    </div>
</div>


@section BreadCrumb {
    <div class="breadcrumb">
    </div>
    <div class="pageTitle">
        <h1></h1>
    </div>
} 

@section HeaderContent {

<style type="text/css"> 

    .contentWrapper  
    {
        border: 1px solid #ddd; 
        padding: 30px 40px 20px 40px; 
        background: #fff;
        /* -- CSS3 - define rounded corners for the form -- */  
        -webkit-border-radius: 10px;
        -moz-border-radius: 10px;
        border-radius: 10px;        

        /* -- CSS3 - create a background graident -- …

我有一个作业，该作业的构造函数包含参数，并且我想知道是否可以通过传递作业配置文件中定义的参数来配置石英以实例化对象。我试过使用job-data-map元素，但这似乎不起作用。这是可能吗？

谢谢

    private static readonly string dataProvider = ConfigurationManager.AppSettings.Get("Provider");
    private static readonly DbProviderFactory factory = DbProviderFactories.GetFactory(dataProvider);
    private static readonly string connectionString = ConfigurationManager.ConnectionStrings[dataProvider].ConnectionString;
    /// <summary>
    /// Executes Update statements in the database.
    /// </summary>
    /// <param name="sql">Sql statement.</param>
    /// <returns>Number of rows affected.</returns>
    public static int Update(string sql)
    {
        using (DbConnection connection = factory.CreateConnection())
        {
            connection.ConnectionString = connectionString;

            using (DbCommand command = factory.CreateCommand())
            {
                command.Connection = connection;
                command.CommandText = sql;

                connection.Open();
                return command.ExecuteNonQuery();
            }
        }
    }

我需要帮助重写这个,以便它可以使用存储过程.(通过sproc名称和params)有没有人知道我应该怎么做呢？编辑:我遇到问题的区域是试图找出填写参数的方法.

谢谢

我目前有两个表看起来像这样:

表格1

Id | AddressNumber | AddressStreet | AddressZip
------------------------------------------------
1   | 50           | Fake          | 60101
2   | 300          | Fake          | 60101
3   | 50           | Fake2         | 60101
4   | 50           | Fake          | 60103

表2

AddressLowRange | AddressHighRange | AddressStreet | AddressZip
---------------------------------------------------------------
50             | 200              | Fake          | 60101
20             | 50               | Other Fake    | 70102

我需要从表1中找到一个Ids列表,其中地址不在表2中.因此,对于上面的示例数据,我将返回ID 2,3和4.