Thumbnail Grid with Expanding Preview. Blueprint: Quotes Rotator. Lesson 1: Understanding the Available Transaction Isolation Levels. According to the SQL-99 standard, there are four transaction isolation levels: Read committed Read uncommitted Repeatable read Serializable Each level protects against specific concurrency problems caused by access to the same data by multiple connections.
Besides these four isolation levels, SQL Server 2005 also provides the following two additional isolation levels: Snapshot Read committed snapshot (which is a variation of the read committed isolation level rather than an entirely different level) To set the active transaction isolation level for a connection, execute the SET TRANSACTION ISOLATION LEVEL statement. Types of Concurrency Problems There are several concurrency problems that can occur in a database management system when multiple users access the same data.
Lost Update A lost update can be interpreted in one of two ways. Dirty Read If data that has been changed by an open transaction is accessed by another transaction, a dirty read has taken place. Non-Repeatable Read. The top 25 responsive sites of 2012. Looking into the JQuery Cycle Plugin - Nikolaos Kantzelis ASP.Net Blog. I have been using JQuery for a couple of years now and it has helped me to solve many problems on the client.
You can find all my posts about JQuery in this link. In this post I will be providing you with a hands-on example on the JQuery Cycle Plugin. I have been using extensively this plugin in my websites.You can rotate a series of images using various transitions with this plugin.It is a slideshow type of experience. I will be writing more posts regarding the most commonly used JQuery Plugins. In this hands-on example I will be using Expression Web 4.0.This application is not a free application. You can use Visual Studio 2012 Express edition. You can download this plugin from this link I launch Expression Web 4.0 and then I type the following HTML markup (I am using HTML 5) <head> <title>Liverpool Legends</title> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" > $(function() { }); </script> </head> <body> <header> <h1>Liverpool Legends</h1> Development/Windy/index2.html. BookBlock: A Content Flip Plugin.
MVC: Creating user configurable charts - Gunnar Peipman's ASP.NET blog. Although summer here is awful and nice at same time it’s time to blog.
Couple of years ago I wrote about how to use MS Chart control in ASP.NET MVC projects. Now let’s extend my solution and let’s add support for simple chart modifications. I used this solution in one of my projects to let users visualize their data better. Extending IReportControl interface Although it is possible to create new interface that extends IReportControl interface I found it better for my solution to modify IReportControl. Public interface IReportControl : IDisposable { int ChartStyle { set; } int ChartType { set; } bool Enable3D { set; } void DataBind(); object DataSource { set; } void SaveChartImage(Stream stream);} We have now three new options: Enable3D - show chart as 3D ChartStyle - set chart style ChartType - set chart type Now let’s fit these new options to our charting solution.
Code behind chart controls Now we have to modify code behind chart controls so it implements our new interface. REST URI Support in Web API - Converting UriTemplates to Routes. Building and consuming REST services with ASP.NET Web API using MediaTypeFormatter and OData support. The ASP.NET Web API has been released with the ASP.NET MVC4 beta release, which was released 2 days ago (14/02/2012).
You can download the ASP.NET MVC4 beta release, that includes the Web API, here: Quoted directly from microsoft website: ASP.NET MVC 4 also includes ASP.NET Web API, a framework for building and consuming HTTP services that can reach a broad range of clients including browsers, phones, and tablets. ASP.NET Web API is great for building services that follow the REST architectural style, plus it supports RPC patterns. If you do not know what REST stands for and why it could be of any use, you can watch this 1h18m08s video on channel9 by Aaron Skonnard: Considering how popular REST is these days, it might be interesting to cover the new Web API in this post. It might be useful to browse once quickly through these posts, so you understand what REST is, how it works and how content negotation works,and how REST currently is implemented by WCF.
Your First Web API (C#) HTTP is not just for serving up web pages.
It is also a powerful platform for building APIs that expose services and data. HTTP is simple, flexible, and ubiquitous. Almost any platform that you can think of has an HTTP library, so HTTP services can reach a broad range of clients, including browsers, mobile devices, and traditional desktop applications.