.net

How to draw the best fit line with c#.net

Hi everyone, I have been trying to do a regression analysis on some data points with c#.net. Can anyone suggest some references to me to be able to plot the data points as well as the best fit line on one chart with c#.net? ...

.NET - How can I use Entity Framework (Data Entity Model) to a WCF Project?

I guess when I generate the entities, they don't have [DataContract] attribute, so I cannot pass the object to client. ...

Does .Net MailMessage auto fold header fields longer than RFC2822 max length?

See RFC 2822, section 2.1.1 and 2.2.3 to start Does System.Net.Mail.MailMessage auto fold its header fields if their content exceeds the maximum length restrictions? RFC2822 states that a header field must not exceed 998 characters per line. To get around that, CRLF may be inserted to have a header field take up more than one line. T...

Add winlogon login method using C# and YubiKey

As for personal fun and challenge, I wanted to add a way to login on my own personal computers. All are currently using Windows 7. Normally this would use ICredentialProvider or something like that. Basically the goal here is to have 2 way to login, the normal user/password one and the alternative (mine) with a Yubikey. Is there any wh...

difference between linq to sql and entity framework

Hi fnds, There are lof of difference between Linq to Sql and Entity framework like Linq to SQL is one to one mapping and EF is many to many mapping and many other which can be found at http://stackoverflow.com/questions/8676/entity-framework-vs-linq-to-sql But here I am asking with EF and Linq to Sql, do we create Entities first and th...

Generic Collections - Ensuring Collections Contain Only One Type of Object?

Hey all, Let me start with the definitions of the objects with which I am working and then I'll do my best to explain what I'm after: class CacheItem<T> where T : EntityBase class CacheCollection : List<CacheItem<EntityBase>> OK, so my generic collection, CacheCollection should be a list of CacheItems which I can manipulate accordin...

Parsing tnsnames.ora using regex...

I am attempting to pull some information from my tnsnames file using regex. I started with the following pattern: MYSCHEMA *? = *?[\W\w\S\s]*\(HOST *?= *?(?<host>\w+\s?)\)\s?\(PORT *?= *?(?<port>\d+)\s?\)[\W\w\S\s]*\(SERVICE_NAME *?= *?(?<servicename>\w+)\s?\) which worked fine when MYSCHEMA was the only schema in the file, but when t...

WCF service host in IIS

I have a mobile application that interacts with a WCF service. Do I have to host the wcf in IIS in order for the mobile to connect to it via internet? ...

is there any benefit to nulling references to "encourage" .NET garbage collection?

Suppose there is the following code: foreach (...) { List<int> localList = new List<int>(100); // do stuff localList = null; } From time to time, I am tempted to null references just as the procedure is about to exit (that is, return) or in this case, just as it is about to loop. Is there any benefit to doing so, even i...

Instantiating a generic type?

I'm currently working on a generic collection class and I'd like to create a method which returns an object from the collection. If the specific object does not exist in the collection then the object should be created, added to the collection, and then returned. I'm accounting a few problems though. The generic collection if of a typ...

ASP.NET MVC strongly typed view compilation error

This is a strange one. I changed something (not sure what) and now my app's view doesn't compile at runtime. The view itself is strongly typed: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<MyNamespace.OperatorModel>" %> When I visit the page, it fails to compi...

Is there any way I can create a System::Type object representing a DateTime object without a DateTime object?

Wanted for property grid, in the PropertyType function of the class derived from PropertyDescriptor, but I don't want an actual DateTime object - I'll just convert it to and from String in SetValue and GetValue. ...

pattern for .NET parallelism beyond a single computer

I suspect that I will soon exhaust the speed improving possibilities of threading on multiple cores in a single computer. What does this .NET desktop programmer need to learn to move a parallel-feasible problem onto multiple computers? My preference is to minimize the total lifecycle programming effort so it would be preferred if the...

Wcf proxy generation on windows mobile application.

For my mobile app, I used the Add Web References to generate the client proxy to interact with my WCF service. Then I read somewhere there is an equivalent of SvcUtil for compact framework: NetCFSvcUtil. Should I be using the NetCFSvcUtil instead of going throught the Add Web References? Or the Add Web References uses NetCFSvcUtil in ...

SQL Server Reporting Services ReportViewer authentication

I'm working on a project involving the .NET ReportViewer, and I'm having issues connecting to the Report Server. I'm a .NET newbie so bear with me. I can't put up the code but hopefully someone will be able to give me a little guidance here. I dragged the ReportViewer control from the toolbox onto a newly created page. Eleventy billi...

WCF service looks works for one client solution, but not another.

Hello all, I have a WCF service that I have written, and exposed as a windows service. In Visual Studio 2010 for two apps, I can right click on references, select "Add Service Reference...", put the required information in, and it works just fine. For a different application, when I do this everything looks to be working fine, but when ...

ASP.net SQL server universal date problem.

I need to solve the following problem for one of my clients. They have an installer which installs a SQL server database + IIS website. The SQL database user can have any kind of date format (DD/MM/YYYY, MM/DD/YYYY,...) depending on the locale of the sql server. The IIS website can have any kind of date format (can be different from sql...

How to prevent web service results from being cached in an ASP.NET web service?

In my ASP.NET app, I noticed that the results of any web service calls are cached. I don't want any results to be cached, how can I stop the browser from caching the results? Update: Here's the proxy code generated by calling the web service URL appending '/js', e.g. /mywebservice.asmx/js var MyWebService=function() { MyWebService.ini...

How do I block until a thread is returned to the pool?

As part of a windows service I'm accepting incoming socket connection using myListener.BeginAcceptSocket(acceptAsync, null) The acceptAsync function executes on a seperate thread (just as expected). When the service is requested to shutdown, I "signal" the threads that accepted and are currently working on the sockets, to finish up. ...

MVC optimization for Session.Clear(), Session.Abandon(), Session.RemoveAll()?

I am using a few sessions that should be terminated when the user is done. I stumbled on these 3 session killers. When is the best time to use these as I use sessions more time than not. Also, is there any other session termination I am not aware of? ...