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Singleton usage examples?

Can anyone summarize when and where one would (and would not) use Singletons? I am asking because it is said that programmers are overusing Singletons....

Singleton Pattern Best Practices Beginner

Posted 5 hrs ago by Walt Lynton 62 Community Rank

92.9

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MVC versus MVP for a WinForms app

I am starting up a relatively small project using WinForms. I have been reading up on patterns and MVC versus MVP. I see that MVC is widely used and very populat in Web developmen

MVC MVP

Posted Feb 07, 2010 by Juan F. Perez 80 Community Rank

94.7 Last reply: 1 day ago by Syed Saqib Ali Tipu 50 Community Rank

Views	468
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Generic Dictionary with multiple keys

I am building a caching system that holds among others a list of Users. Sometimes we access the Users by userId (the primary key). Sometimes we access the Users by name (a string) Performance is critical, th

Generics Dictionary C#

Posted 3 days ago by Hans Overkamp 50 Community Rank

50 Last reply: 1 day ago by Zac Bai 50 Community Rank

Views	66
Replies	1
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Singleton as a static class

I was wondering why are Singletons not implemented as a static class with a static public Instance property?

Singleton Pattern Gang of Four

Posted Feb 02, 2010 by Juan F. Perez 80 Community Rank

94.7 Last reply: 3 days ago by Shekhar Kadam 60 Community Rank

92.3

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Is there any way to approve or register new design pattern ?

Last time, in my job I implemented one idea on user interface. And, I am thinking that is a good way to achieve such kind of goal. So I am trying to convert that idea into design pattern and I think this is not implemented yet. Bu

Posted 4 days ago by Rukesh Shrestha 50 Community Rank

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Abstract Factory versus Factory Method

I have been trying to get my head around Factory patterns, particularly Abstract Factory. Can anyone, in a couple sentences, explain the difference between Abstract Factory and Factory Method? Much appreciated.

Abstract Factory Pattern Factory Method Pattern

Posted 21 days ago by Bogusław Dobrogost 75 Community Rank

93.9 Last reply: 5 days ago by Jebby Philip 50 Community Rank

Views	988
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Dynamic LINQ solution?

In our app we have a situation where the users can select from numerous criteria and get back a subset of a large number of documents. Also, supported are pagination and sort order. Criteria may incl

LINQ to SQL LINQ to Entities SQL Server

Posted 14 days ago by Craig Johnston 70 Community Rank

93.4 Last reply: 12 days ago by Aaron Burton 170 Community Rank

95.5

Views	368
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ASP.NET MVC meta tags

I am working with ASP.NET MVC and need a way to programmatically set a page's meta tags (title, description, keywords). I can pass ViewData, but it should handle cases where I don't need keywords or description (which is

ASP.NET MVC

Posted 15 days ago by Christopher Ronny 50 Community Rank

Views	187
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Html.ActionLink and class attribute

How do I set the class attribute in Html.ActionLink. When I include for htmlAttributes: new { class = "border" } I get a compiler error. This is the full line: <% = Html.ActionLink("TextLink", &quo

ASP.NET MVC ActionLink

Posted 19 days ago by Deshaun Hyram 65 Community Rank

93.1 Last reply: 16 days ago by Andrey Lesch 70 Community Rank

93.4

Views	207
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Entity Framework 4.0 or LINQ-to-SQL

One of our clients wants us to evaluate the best option: move to Entity Framework 4.0 or LINQ-to-SQL (for when Visual Studio 2010 is out). We have some experience with LINQ-to-SQL, which we reall

Entity Framework LINQ to SQL

Posted 16 days ago by Humbert Addison 50 Community Rank

Views	279
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MVVM vs MVC and MVP patterns

Can anyone explain what the MVVM pattern is compared to the existing patterns as well as reasons to use one over the other?

MVVM MVP MVC

Posted 22 days ago by Darrell G. 50 Community Rank

50 Last reply: 16 days ago by Albert Hickman 250 Community Rank

97.1

Views	597
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Sorting Numeric Text

I have found this useful for when I need to sort names that begin with numbers.

C# LINQ Extension Methods

Posted Feb 06, 2010 by Aaron Burton 170 Community Rank

95.5 Last reply: 17 days ago by pav lik 55 Community Rank

91.3

Views	367
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Release date of Visual Studio 2010

What is the official release date is for Microsoft Visual Studio 2010?

Visual Studio 2010

Posted 30 days ago by Walt Lynton 62 Community Rank

92.9 Last reply: 21 days ago by Bogusław Dobrogost 75 Community Rank

93.9

Views	528
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ASP.NET MVC client custom validation

Something I have not seen is a (client side) validator that hits the database to check the name is unique. A common scenario is where a user is registering and the username must be unique in the user table. Anyone

ASP.NET MVC Validation

Posted 21 days ago by Hans Overkamp 50 Community Rank

Views	178
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Singleton pattern and DB Connection

Is it best to use singleton pattern for database connections in web development? If not what is the best way to do it?

Data access

Posted Feb 02, 2010 by Madeshwaran M. 50 Community Rank

50 Last reply: 23 days ago by Gulab Chand Tejwani 250 Community Rank

97.1

Views	892
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ASP.NET MVC project structure

My team is migrating over from ASP.NET WebForms to ASP.NET MVC. Our Visual Studio solution would exist of the following projects: ASP.NET Web App Service Layer Business Layer D

ASP.NET MVC Architecture

Posted Feb 07, 2010 by Walt Lynton 62 Community Rank

92.9 Last reply: 23 days ago by Dariusz K. 50 Community Rank

Views	511
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ASP.NET AJAX versus jQuery

We are looking into moving our web app to Web 2.0, i.e. lots of interactivity with Ajax. It seems that Microsoft is supporting two separate libraries ASP.NET AJAX and jQuery. Why

ASP.NET AJAX jQuery

Posted 30 days ago by Humbert Addison 50 Community Rank

50 Last reply: 24 days ago by Siva M. 250 Community Rank

97.1

Views	525
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ASP.NET WebForms versus ASP.NET MVC

This is not so much a critique on a project but more of a reflection on the ongoing discussions between the above-mentioned ASP.NET platforms. After reading Scott Gu's b

ASP.NET WebForms ASP.NET MVC Microsoft

Posted 27 days ago by Hans Overkamp 50 Community Rank

50 Last reply: 24 days ago by Siva M. 250 Community Rank

97.1

Views	342
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Looking for suggestions: what is the best Mocking package for .NET?

I am diving deep into unit testing, mocking, stubbing, IOC, and everything that goes with it. I am looking for some guidance from those who are using these tools 'in the field.'&n

Mocking Moq Rhino Mocks

Posted 25 days ago by Hans Overkamp 50 Community Rank

Views	144
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Silverlight Design Patterns in Design Pattern Framework 3.5?

Are there any Silverlight Patterns in the Design Pattern Framework?

Silverlight Design Pattern Framework

Posted 30 days ago by Bogusław Dobrogost 75 Community Rank

93.9 Last reply: 26 days ago by Michael Thomas 80 Community Rank

94.7

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Help, my boss wants to move to Ruby on Rails

We have several classic ASP websites. Now, my boss & IT guys want to migrate these over to Ruby on Rails. My preference would be to go to ASP.NET MVC. Can anyone help me build a lis

ASP.NET MVC Ruby on Rails

Posted 30 days ago by Deshaun Hyram 65 Community Rank

93.1 Last reply: 27 days ago by Aaron Burton 170 Community Rank

95.5

Views	391
Replies	3
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Difference between Multi-Tier and Multi-Layer?

Can anyone explain what the difference is between a Multi-Tier and Multi-Layer architecture? My understanding is that one is logical the other is physical.

Multi Tier Multi Layer

Posted Feb 05, 2010 by Sean Healy 260 Community Rank

99.2 Last reply: Feb 06, 2010 by Uday Shastri 50 Community Rank

Views	548
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