catch system

Using System;Using System. Collections;Using System. Collections. Specialized;Using System. Data;Using System. Data. SqlClient;Using System. Configuration; Namespace LiTianPing. SQLServerDAL // you can change it to The namespace name of the actual

I have sorted out the database operation classes for SQL database operation classes, which include common database operations in three ways: simple SQL concatenation of strings, SQL statements use the form of parameters and stored procedures. each

Using system;Using system. collections;Using system. Collections. Specialized;Using system. runtime. remoting. messaging;Using system. Data;Using system. Data. sqlclient;Using system. configuration;Namespace LTP. sqlserverdal{/// /// Basic class for

People who are used to C # and VB. NET may be used to capture all exceptions in the following format: Try { // Some code } Catch (System. Exception ex ){System. Console. Write ( " Error! " );} Can this statement capture

Using system;Using system. collections;Using system. Collections. Specialized;Using system. runtime. remoting. messaging;Using system. Data;Using system. Data. sqlclient;Using system. configuration;Namespace LTP. sqlserverdal{/** // /// Basic class

Ke leyi adopts the C #. Net Language for compiling and has powerful functions. You can use the SQL Server Connector class to efficiently and conveniently access the SQL database. Ke leyi contains three parts: execution of simple SQL statements,

Walkthrough: saving data in transactions This walkthrough demonstrates how to use the system. Transactions namespace to save data in a transaction. This example usesMERsAndOrdersTable. Prerequisites This drill requires access to the

Using system;Using system. Data;Using system. Data. sqlclient;Using system. configuration; Namespace dbbase{ Public abstract class base{ # Region "fields of base calss" Protected static string strconn = configurationsettings. deleettings

Export data from data warehouse to word‑excel‑.txt using system; Using system. Data; Using system. drawing; Using system. Data. sqlclient; Using Excel; Using word; Using system. IO; Namespace common{/// /// Import data to the .doc).txt).xls File//

For code generators, complex queries do not provide methods in the data access layer and transactions. Therefore, for actual project applications, I have developed a new data access interface in the framework of Li Tianping. The IDAL interface is as

This article introduces several examples. For more information about how to copy, delete, and move C # files and folders in asp.net, see. The Code is as follows: Copy code Public class SimpleFileCopy {Static void Main

Written by someone elseArticleSimplified, the original here: http://blogs.msdn.com/ianhu/archive/2005/12/19/505702.aspx Few words.Code:   Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--

Recently, due to the needs of an R & I project, users require that the system send an email reminder or send an email every Monday to automatically collect data, therefore, I also found relevant materials and wrote a Demo to share with you, so that

Http://www.cnitblog.com/MartinYao/articles/20874.html Use ADO. Net datasets in Delphi   Abstract If you 've experimented with Web Services, you might have hit someMicrosoft. NET Based Web Services which return data all right, but it'sIn the

For more information, see the download file:/Files/bigmouthz/dnet's Data Warehouse isqlexecution program ( ).rarSome code is as follows:DBCore. DataBaseVisitor. AbsDBHelper dbhelper = null; Private void bt_DBLink_Click (object sender, System.

Http://www.csdn.net/Develop/Read_Article.asp? Id = 20312 VB given by Chapter E of MenciusCodeNow translate the code into C # for reference by people who are used to C #.Note that the image must be in ICO format. Otherwise, the tray may not be

Exception:Programming LanguageTo reduce complexity.CodeAnd reduces the number of codes written and maintained. Try to throw an exception by value and capture the exception by reference. For example:   Void test (item) {try {If (/* Some test

This is the case. I need to do the following: This is not difficult. Then we use the FolderBrowerDialog. Well, it's good. At first, the customer liked it. After a while, the customer said that the right-click feature should be blocked, and he did

This class is summarized by referring to several documents on the Internet. It can be used directly after tests. There is a section of MD5 which should be independent of one class. I am lazy, so I wrote it into a file during the test. It still feels

Public static void WriteClob (string table_name, string fieldname, string table_id, string id, int column, string content) { OracleConnection myCn = OracleModel. GetConnection (DbKey. ORA ); OracleCommand myCmd = new OracleCommand (); Try { MyCn.