.net

问题 I have created a CName entry in forward lookup in DNS and then created a PTR in Reverse lookup in DNS but following code always returns aliases blank. IPHostEntry reverse = Dns.GetHostEntry(txtIPaddress.Text); Response.Write(reverse.HostName); I have read somewhere that if IPv6 is enabled then aliases will be blank. So, i have disabled on both client and server machine using fixit given here: http://support.microsoft.com/kb/929852#fixit4me but nothing is working any help will be appreciated.

问题 I have a large ReplaySubject that allows subscribers to receive the replay buffer and future notifications as normal. In addition, I would like to be able to take a "snapshot" of the current buffer and return that as a list synchronously, without having to subscribe. Is there a way to do this? thanks 回答1: Can you not just subscribe, receive the items, then unsubscribe? public static List<T> Snapshot<T>(ReplaySubject<T> subject) { List<T> snapshot = new List<T>(); using (subject.Subscribe(item

问题 I'm trying to build System.Data.SQLite in Visual Studio using the source code downloaded from http://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki I was able to build the solution, but when I tried to reference the System.Data.SQLite.dll from a project with TargetFramework=3.5, I received the following message: "System.Data.SQLite.dll or one of its dependencies, requires a later version of the .NET Framework than the one specified in the project." I noticed that their managed

问题 Scenario: I want to develop an application.The application should be able to connect to my remote server and download data to the local disk , while downloading it should check for new files and only download the new ones simultaneously creating the required(new) folders. Problem: I have no idea how to compare the files in the server with the ones in the local disk.How to download only the new files from the server to the local disk? What am thinking?: I want to sync the files in the local

问题 Scenario: I want to develop an application.The application should be able to connect to my remote server and download data to the local disk , while downloading it should check for new files and only download the new ones simultaneously creating the required(new) folders. Problem: I have no idea how to compare the files in the server with the ones in the local disk.How to download only the new files from the server to the local disk? What am thinking?: I want to sync the files in the local

问题 I called method: TimeZoneInfo.ConvertTimeFromUtc(DateTime.Now.ToUniversalTime(), TimeZoneInfo.FindSystemTimeZoneById("GMT Standard Time")) // UTC+0 It is returned DateTime for one hour larger than the correct DateTime. Why? How will it fix? Returned value should be equal DateTime.Now.ToUniversalTime() 回答1: UTC is equal to GMT. But currently we're in BST due to summer, which is GMT + 1. GMT Standard Time automatically adjusts for daylight savings. Use Greenwich Standard Time , rather than GMT

问题 The requirement is a bit strange, I've encountered a strange stuck problem in multi-thread in powershell. So I want to create a new window and don't use shell Execute. But I cannot make it with below code, the window doesn't show up. $approot is desktop, in start.bat, just do "dir /s .\" I want the dir result shows in another window instead of the window execute this script, and I don't want use shell execute. $startInfo = New-Object system.Diagnostics.ProcessStartInfo $startInfo

问题 I have A and B classes both implementing interface I . public interface I { int SomeInt { get; } bool SomeBool { get; } float SomeFloat { get; } } public class A : I { public int SomeInt { get; } public bool SomeBool { get; } public float SomeFloat { get; } private readonly string _someARelatedStuff; // Rest of class... } public class B : I { public int SomeInt { get; } public bool SomeBool { get; } public float SomeFloat { get; } private string readonly _someBRelatedStuff; private double

问题 I have A and B classes both implementing interface I . public interface I { int SomeInt { get; } bool SomeBool { get; } float SomeFloat { get; } } public class A : I { public int SomeInt { get; } public bool SomeBool { get; } public float SomeFloat { get; } private readonly string _someARelatedStuff; // Rest of class... } public class B : I { public int SomeInt { get; } public bool SomeBool { get; } public float SomeFloat { get; } private string readonly _someBRelatedStuff; private double

问题 I found out how to draw Rectangles and some code to find when two rectangles overlap but I can't connect these procedures. I have the two rectangles that I wanted but then a cannot determine whether these intersect, to then add this information to a ListBox. Here is my code: public partial class Form1 : Form { Graphics g; Pen p; Point cursor; int k = 0; Point[] tocke = new Point[2]; public Form1() { InitializeComponent(); g = this.CreateGraphics(); p = new Pen(Color.Black, 3); } private void