Consider the following code: class CustomClass { public CustomClass(string value) { m_value = value; } public static bool operator ==(CustomClass a, CustomClass b) { return a.m_value == b.m_value; } public static bool operator !=(CustomClass a, CustomClass b) { return a.m_value != b.m_value; } public override bool Equals(object o) { return m_val
考虑下面的代码： class CustomClass { public CustomClass(string value) { m_value = value; } public static bool operator ==(CustomClass a, CustomClass b) { return a.m_value == b.m_value; } public static bool operator !=(CustomClass a, CustomClass b) { return a.m_value != b.m_value; } public override bool Equals(object o) { return m_value == (o as
In .Net 2.5 I can usually get an equality comparison (==) between a value and its type default if (myString == default(string)) However I get the following exception when I try to run an equality comparison on a default KeyValuePair and a KeyValuePair Code Sample (from a pre-extension method, proto-lambda static ListUtilities class :) ) public static TKey FirstKeyOrDefault<TKey,
在.Net 2.5中，我通常可以获得值与其类型默认值之间的等式比较（==） if (myString == default(string)) 但是，当我尝试在默认的KeyValuePair和KeyValuePair上运行相等比较时，我得到以下异常 代码示例（来自预扩展方法，proto-lambda静态ListUtilities类:)） public static TKey FirstKeyOrDefault<TKey, TValue>(Dictionary<TKey, TValue> lookups, Predicate<KeyValuePair&l
Edit: Problem solved, the greater than was the wrong ascii character. Even tho I didn't copy paste it from somewhere. I'll have to check my keyboard language. Edit: Just to make it clear, effect.Parry is an int? not a decimal. See edit below Edit: I changed the decimalToString. That was an error on my part but I'm still getting the error I am trying to do a greater than if st
编辑：问题解决了，大于错误的ASCII字符。 即使我没有复制粘贴从某个地方。 我将不得不检查我的键盘语言。 编辑：只是为了说清楚，effect.Parry是一个int？ 不是小数。 请参阅下面的编辑编辑：我改变了decimalToString。 这是我的错误，但我仍然收到错误 我正在尝试在我的代码中执行比if语句更大的功能，但是我收到了一个错误，但我无法确定错误是什么...... 这是代码的一部分。 if (effect.Parry != null)
I have an existing codebase that persists a couple of simple classes to disk via NetDataContractSerializer , but the classes are unfortunately not adorned with [DataContract] , but rather with [Serializable] . This works fine, but now I want to add a few new properties to the persisted classes, while still be able to read the files generated by the old version. Let's say this is the class:
我有一个现有的代码库，通过NetDataContractSerializer持久化了一些简单的类到磁盘，但不幸的是这些类没有用[DataContract]装饰，而是用[Serializable]装饰。 这工作正常，但现在我想添加一些新的属性到持久化类，同时仍然能够读取旧版本生成的文件。 假设这是一个班级： [Serializable] public class Persisted { public int OldProperty {get;set;} public int NewProperty {get;set;} } 现在，当我反序列化旧文
I have a web page written in ASP.NET and I need to retrieve the end user's local time at Page_Load . I thought about using Javascript to get the local time (by using new Date() ) but the problem is that the script is run after the server events. Any ideas on how to accomplish this? EDIT: My page is quite complex: it displays a chart with lots of calculated fields from a database, object/
我有一个用ASP.NET编写的网页，我需要在Page_Load检索最终用户的本地时间。 我想过使用Javascript获取当地时间（通过使用new Date() ），但问题在于脚本在服务器事件之后运行。 任何想法如何实现这一目标？ 编辑：我的页面非常复杂：它显示一个图表，其中包含大量来自数据库，对象/字段选择列表等的计算字段; 客户现在要求它考虑用户的时区，并且时区应该由网页自动确定。 用户日期对于确定图表间隔（显示数据的哪一天）
My understanding of these three was: .Equals() tests for data equality (for the lack of a better description). .Equals() can return True for different instances of the same object, and this is the most commonly overridden method. .ReferenceEquals() tests whether or not two objects are the same instance and cannot be overridden. == is the same as the ReferenceEquals() by default, but this C
我对这三个人的理解是： .Equals()测试数据是否相等（缺少更好的描述）。 .Equals()可以为同一对象的不同实例返回True，这是最常用的重写方法。 .ReferenceEquals()测试两个对象是否是相同的实例并且不能被覆盖。 ==默认情况下与ReferenceEquals()相同，但这可以被覆盖。 但C＃站点状态： 在对象类中， Equals和ReferenceEquals方法在语义上是等价的，只不过ReferenceEquals只适用于对象实例。 ReferenceEquals方法
I've been at this for hours now and it's starting to get upsetting. :( I have a COM DLL that I created in .NET 4.0, that I want to be able to access with a legacy application made in VC++ 6. Its visible to COM, I already successfully created the TLB and SNK files, moved it over to the machine with the legacy C++ code, #imported the TLB, everything compiles fine. Ran the following:
我已经呆了好几个小时了，现在开始感到不安。 :( 我有一个在.NET 4.0中创建的COM DLL，我希望能够使用在VC ++ 6中创建的旧应用程序访问它。它对COM可见，我已经成功创建了TLB和SNK文件，将它移到了机器与传统C ++代码，#imported TLB，一切都编译好。 如下： RegAsm ProtracFunctions.dll / codebase gacutil /我ProtracFunctions.dll 他们都是成功的。 当我启动我的应用程序时，只要我点击CoCreateInstance，我就
i am pretty new to XSLT / XML and HTML. I have a XML file that I currently convert to HTML in c# using an XSLT. The XML file represents nothing but data extracted from a table in a database. I can currently convert the XML file to HTML using XSLT fairly easily without much formating. the HTML when opened looks pretty ordinary. What i intend to is format the HTML ie change the font, backgroun
我对XSLT / XML和HTML相当陌生。 我有一个XML文件，我目前使用XSLT在C＃中将其转换为HTML。 XML文件只代表从数据库中的表中提取的数据。 我目前可以很容易地使用XSLT将XML文件转换为HTML，而不需要太多格式化。 打开HTML时看起来很普通。 我打算格式化HTML，即根据XML文档中的某些关键值更改字体，背景颜色，字体颜色等。 XML是使用C＃代码每天生成的。 XML文件的内容完全依赖于当天执行C＃代码时数据库中表的内容。 X
I read that the Load event is supposed to be fired after the window handle has been created, but before the window actually become visible. For the most part, this seems to be true. However, I've found that when I create a form with the WindowState property set to FormWindowState.Maximized (either via the VS designer, or programatically in the constructor), the window becomes visible prior
我读到Load事件应该在创建窗口句柄后触发，但在窗口实际可见之前触发。 大多数情况下，这似乎是对的。 然而，我发现当我创建一个WindowState属性设置为FormWindowState.Maximized （通过VS设计器或编程方式在构造函数中）时，窗口在Load事件触发之前变得可见。 例如： using System; using System.Windows.Forms; namespace MyApplication { public partial class MyForm : Form { public MyForm()
I've got a UserControl (winforms) that is placed onto a Form (actually a Weifen.Luo.DockContent , that again derives from the basic form). AutoScroll is enabled for the form and the control can be moved on it by dragging around (more precisely by evaluating MouseDown , MouseMove , MouseUp and updating the Location ). Sometimes* when reaching the border (so that the form's plane must be
我有一个UserControl （winforms）放置在一个窗体上（实际上是一个Weifen.Luo.DockContent ， Weifen.Luo.DockContent是从基本窗体派生的）。 为窗体启用AutoScroll ，并且可以通过拖动（更准确地说，通过评估MouseDown ， MouseMove ， MouseUp和更新Location ）来移动控件。 有时*到达边界时（以便表格的飞机必须进一步放大）更新控制器的位置突然停止工作; 设置Location = ..失败。 在调试时从即时窗口演示一个片段： &g