linq or ado net

(); DataTable dt = new DataTable (); 2. Populate the DataTable object da with data. Fill (ds, "TableName"); DT = ds. tables["TableName"]; 3. Processing data in a DataTable the properties and methods of the Tatatable object are: name Properties/Methods Description Rows.Add () Method Insert new data row Rows[n]. Delete () Method Delete the record of the nth row Rows.Count Property Get row

Ado. netEntity Framework Overview The new version of ADO. NET features the New Entity Framework. It allows developers to focus on data through the Object Model (instead of the logical/Relational Data Model. The Entity Framework helps to abstract the logical data architecture into a conceptual model, and allows you to provideProgramInteraction with the conceptua

Some time ago, many articles in the garden introduced the analysis of LINQ to SQL. It can be said that it is a simple implementation of ORM, And it is Microsoft's problem of unbalanced impedance between data and objects. C #3.0 introduces some new features, such as extension method, Lambda expression, and anonymous type. In fact, these new features are used to serve LINQ. By writing a large number of SQL qu

ADO. NET provides a unified programming mode and a set of public classes for any type of data access, regardless of the language in which you develop code. ADO. net is brand new, but it is as consistent as possible with ADO, it enables the programming mode from a client/serv

Rupeng Net learning notes (6) ADO. Net basics, learning notes ado.net ADO. Net Basics 1. Introduction to ADO. Net1. To use SQL statements to automate database operations, you must use a class library,The class library must provide

[Reprint]1. About SQLite ADO. netSystem. Data. SQLiteIs an enhanced version of the original SQLite. it will be a complete replacement of the original sqlite3.dll (you can even rename it as sqlite3.dll ). it does not need to be linked.. net independent release, but it is embedded with a complete ADO. NET 2.0 engine, pro

[Reprint]1. About SQLite ADO. netSystem. Data. SQLiteIs an enhanced version of the original SQLite.It will be a complete replacement of the original sqlite3.dll (you can even rename it as sqlite3.dll). It does not need to be linked to. netDuring runtime, it can be released independently from. net. However, it is embedded with a complete ADO.

1. About SQLite ADO. net System. Data. SQLite Is an enhanced version of the original SQLite. it will be a complete replacement of the original sqlite3.dll (you can even rename it as sqlite3.dll ). it does not need to be linked.. net independent release, but it is embedded with a complete ADO.

result will not escape this routine:var Object = db. Get (ID); Change (refObject);d B. Update ();You need to push the update to the past and persist the operation and data.At the beginning of the storage hierarchy, push updates are unavoidable, even in the face application, where updates to the object are pushed to the UI. The role of ORM standing in the middle of inconsistent application scenarios is the role of a lubricant.The feature that I can immediately recall is the caching mechanism of

I. ADO. NET's definition ADO. NET originates from COM component Library ADO (that is, ActiveX Data Objects), is a new generation of Microsoft Company. NET database access model, is currently used by database program designers to develop based on.

> new item .... Then, name the ADO. NET data service as employeeinfoservice. SVC according to the operation. Figure 13: Create ADO. NET data service Modify employeeinfoservice. SVC. CSCodeAs follows: Using System; Using System. Collections. Generic; Using System. Data. Services; Using System.

Overview The release of Silverlight 2 Beta 1 brings us a lot of surprises from Runtime and Tools, such as supporting the framework languages Visual Basic, Visual C #, IronRuby, Ironpython, A series of new features such as JSON, Web Service, WCF, and Sockets support. The article "one-step learning Silverlight 2 series" takes you to Silverlight 2 development quickly from the following aspects: Silverlight 2 basic knowledge, data and communication, custom controls, animation, and graphic images. Th

MVC + LINQ + EF (. NET platform), mvclinq The focus of learning software development is hands-on practice. It is just to stand by the river to learn the essentials of action and the theory of swimming. You will never learn to swim. You must try it out. This example mainly involves three core knowledge parts: MVC Framework, EntityFramework, and Linq. Step 1: Creat

In which scenarios does ADO. NET Entity Framework work?Enity Framework is already the main ORM in. NET. From the beginning of a Mapping concept, ORM has been sublimated to a certain extent, especially EF and other improvements to the object-oriented capabilities of the ORM framework. To put it bluntly, the orm enables the database to be better encapsulated and ab

Today, I visited the blog of the ADO. NET Entity Framework Team. I am interested in this project because I also write Orm. :) Of course, that grade is not a level. I don't know how many pigeons I put in this project. I still remember the objectspace stuff. Now it's in beta 3, and I 've even published it in LINQ. He can't keep it up. (Winfs in Vista, I guess it's

to a server by simply copying the necessary files to the server. You do not need to restart the server, even when you are deploying or replacing a running compiled code. Scalability and availability. The design of ASP. NET is designed with scalability in mind, adding features specifically designed to improve performance in clustered environments and multiprocessor environments.In addition, processes are closely monitored and managed by the ASP.

Practical experience in ADO. NET As Microsoft's latest data access technology, ADO. NET has been widely used in enterprise development. For front-line developers, the most effective way to improve the application level and solve practical problems after mastering the basic concepts and technologies is to exchange the b

Summary The release of Silverlight 2 beta 1 brings us a lot of surprises from runtime and tools, such as supporting the framework languages Visual Basic, Visual C #, ironruby, ironpython, A series of new features such as JSON, Web Service, WCF, and sockets support. The article "one-step learning Silverlight 2 series" takes you to Silverlight 2 development quickly from the following aspects: Silverlight 2 basic knowledge, data and communication, custom controls, animation, and graphic images. Thi

In the previous article in this series, I wrote a little bit of notes about server controls. Actually used by cainiao. after a long time of development, we will find that almost no one uses the server control provided by Microsoft, because everyone wants to customize the control they need in depth, in this way, the performance and requirements can be met. To put it bluntly, you can write your own controls. Some Daniel expressed strong contempt and disdain for the knowledge of the word "control".

ADO. NET Learning Series (1) and ado.net Learning Series I. Basics of ADO. NET The program interacts with the database through ADO. NET, and the SQL statement can be executed in the database through