ado net c# example

1. NET is an abstract platform concept. The implementation of the. NET platform is actually a library. In the abstract aspect, it is a platform. . NET Framework includes two key components: A. Common Language Runtime, Common Language Runtime (CLR)-provides internal management, code security detection, and other functions B..

Ado. Net Object Model The ADO. Net object model has five main components: connection object, command object, datareader object, dataadapter object, and DataSet object. The components that are responsible for establishing online and data operations are called the data operation component (managed providers), which is co

# relationships, it has to be mentioned. NET program to execute the process.C # conforms to the common language runtime specification in the. NET CLR. Cls:common language Specification, of course, all of the. NET language are compliant with this specification for example: VB.net, XAML, and

protocols, different data sources must adopt corresponding protocols. Some old-fashioned data sources use the ODBC protocol, and many new data sources use the oledb protocol. Now more data sources are available. net ADO.. Net class library. ADO. NET provides public method

[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.

. When a single transaction spans multiple remote databases, or a single transaction involves multiple resource managers (for example, a database and an MSMQ resource manager), automatic transactions are preferred. In any case, it is important to avoid mixed use of the two transaction patterns. If performance is not particularly important, you might consider using automatic transactions for only one database operation, making the code more concise (bu

As we all know, the biggest advantage of ADO. NET over ADO is that the data update and modification can be performed when it is completely disconnected from the data source, and then the data update is passed back.Data source. This greatly reduces the occupation of Database Server resources due to excessive connections. The following is an

As we all know, the biggest advantage of ADO. net over ADO is that the data update and modification can be performed when it is completely disconnected from the data source, and then the data update is passed back. Data source. This greatly reduces the occupation of Database Server resources due to excessive connections. The following is an

= "MyDataBase"; 5 builder. IntegratedSecurity = true;5. Storing the connection string in the configuration fileIn our actual development, we generally do not write the connection string directly in the code, but rather stored in the configuration file. Writes the connection string to die in the code, is inconvenient to maintain, each time modifies the string, also must recompile the code. As an example of an ASP.

, provided that it uses the same XML outline. The following code demonstrates how ADO saves a record set as an XML file: .Save "c:/MyRowSet.xml", adPersistXML Similar to the response object output on an ASP page, the row set can be saved as a stream. For example, some ASP code can accept a request to retrieve a row set and send the row set as a stream to the res

Connection stringServer=myserveraddress;database=mydatabase; Uid=myusername; Pwd=mypassword;3.4 DB2 Connection stringServer=myaddress:myportnumber;database=mydatabase; Uid=myusername; Pwd=mypassword;3.5 Oracle Connection stringData SOURCE=TORCL; User Id=myusername; Password=mypassword;4. How do I construct a connection string?In the above we know that the connection string is essentially a string, so we can fully use theString connstr = "Data source=myserveraddress;initial catalog=mydatabase; U

Data access is the basis of any application. In this article, I will explain how to use C # and ADO. NET to access SQL Server-based data and how to display data in a data-bound grid control. I use a simple C # application as an example.