C # about Excel Export database practices

Using System;Using System.Diagnostics;Using System.Collections;Using System.Data;Using System.Web;Using System.Web.UI;Using System.Web.UI.WebControls;Using Excel;Using System.Data.OleDb;Namespace Maticsoft.common{To manipulate Excel to export a data

C # completely resolves an issue where OLE DB joins Excel data types that are not uniform

a complete solution to the problem of OLE DB connection Excel data type not uniform It is very efficient to use microsoft.jet.oledb.4.0 to connect to Excel, to read data, and to read data relative to traditional COM. But relative to traditional COM

C + + ActiveX Foundation 1: Creating an MFC ActiveX Project using VS2010

ole

Basic concepts of 1.ActiveX An ActiveX control can be thought of as a very small server application that cannot run on its own and must be embedded in a container program and run with that container. This container includes Web pages, application

24th. Right-value reference of the C++11 attribute

Rvalue reference is one of the most important improvements in the C++11 language core. Rvalue references bring "Move Semantics" ("Transfer Semantics") to C + + and solve the problem of perfect forwarding in template programming (Perfect forwarding).

Wuhan University of Science and Technology acm:1003: Chinese Edition C language Programming tutorial (second Edition) example 6.6. Adaptation

Problem DescriptionWowapps most like to learn English, English class never skip class, but English has not been learned, because the class has been sleeping. Why do you sleep, because he thinks the English word is too long. Now Wowapps has a long,

Wuhan University of Science and Technology acm:1007: Chinese Edition C language Programming tutorial (second edition) Exercise 5.7

Problem DescriptionThis day the teacher gave small Hao a very simple topic relaxed: Enter a score, let you find their simplest score. InputThe first line includes a T, which represents the number of groups of test data.The next line of T lines

The difference between the prefix and suffix of the self-increment and decrement operators of C + +

Believe that a lot of people have just started to learn programming, but also for this problem, the prefix and suffix, in a long time ago, there is no way to distinguish between + + and-operator prefix and suffix of the call. However, the C + + has

C + + memory leak and detection

"Damn system has a memory leak problem", due to various factors in the project, there is always a complaint that there is a memory leak, after the system has been running for a long time, less usable memory, even caused some service failure. A

[c/c++]_[primary]_[using zlib Library compressed file]

Scene:1. Windows did not find the system provided by the Win32 API to generate a Zip compressed file, there is known that Daniel Trouble to leave a message.2. Zlib is more commonly used, compiling is also convenient, use it to do compression. The

Windowsclientc/c++ Programming Specification "Recommendations"--preface

ObjectiveVery many programming specifications are in contact with the work. The most interesting thing is that the company recently released a version of the C/s programming code, and then I see the last paragraph of the specification, there is a

Sequential storage structure of linear table (C-language dynamic array implementation)

definition of a linear table: A finite sequence of n data elementsLinear tables are categorized from storage structures: sequential storage structures (arrays) and chained storage structures (linked lists)Sequential storage structure: a contiguous

C + + Gui QT4 Programming Learning Road (1)--QT Environment construction

PrefaceBecause the company needs to do a Linux under the development of QT, coupled with direct contact with some QT, then began to cramming.Previously useful Qt wrote a 2048 game, about 3 April, that will be 2048 positive fire, think of oneself in

The difference between property and attribute in C #

C # Medium Property and attribute the DifferenceL property is a way to access a field (member Variable, field) (Set/get)L property is a language feature introduced in C #, which brings some programming skills in C + + to the position of grammar.

Recommended books: C # And. Net 3.5 advanced programming (version 4th)

Recommended reason: C # And. Net 3.5 advancedProgramDesign (version 4th), 103.50 yuan, save money only for books to learn not to eat... Powered by chunye39.com I bought a C # And. Net 3.5 advanced program design. It's expensive. We recommend

C # export an Excel Summary

I. Method for exporting Execl in asp.net: There are two ways to export Execl in asp.net: one is to store the exported file under a folder on the server, and then the file address Output on the browser; one is to directly write the file output

How to Use cout to output hex, oct, and dec in C ++

HEX: Copy codeThe Code is as follows: # include # Include Main (void) { Long n = 10000; Cout Return 0; } OCT:Copy codeThe Code is as follows: # include # Include Main (void){Long n = 10000;Cout Return 0;} DEC:Copy codeThe Code is as follows: #

I am no longer afraid of URI encoding JavaScript and C # URI Encoding

Chaotic URI Encoding There are three methods for encoding in JavaScript: escape, encodeURI, encodeURIComponent C # encoding methods: HttpUtility. UrlEncode, Server. UrlEncode, Uri. EscapeUriString, Uri. EscapeDataString The JavaScript code is okay.

C # Read the QQ pure IP database QQWry. Dat code

Pure qq ip database Copy codeThe Code is as follows: using System; Using System. Collections. Generic; Using System. Text; Using System. IO; Using System. Web; Using System. Configuration; Namespace BLL{Public class IPLocationSearch{Private static

C ++ hardware information to obtain the hard disk serial number and the hard disk serial number

C ++ hardware information to obtain the hard disk serial number and the hard disk serial number This section describes how to obtain the serial number of a hard disk, not the serial number of a hard disk partition. The core is

C ++ from scratch (1) -- What is programming

Introduction Some people have asked me some basic questions, however, these people have been able to use VC to compile a dialog box interface for necessary operations or the document/visual interface to receive port data in real time and dynamically

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