oledbconnection vb net example

In VB. NET, when you need to display data on the console or prepare to print data, you may need to adjust the column width to display data of a fixed length. This article describes how to use the padleft method of the string object and the padright method to expand the string for fixed width display. PadleftAnd padrightMethod Padleft and padright are two methods of the string class. They can be used to fill

You can use the RegEx. Replace method in VB. NET to search for a pattern in a string and modify the text to hide the information. The RegEx. Replace method is an efficient method for numerical replacement. You can use a fixed string to replace a string. This increases the system load for developers to use it effectively. In the example in list A, we look for a wa

cores of the CPU.But the argument has always been controversial.My test results such as the following (My computer is i7 4770. Quad Core Eight threads): Number of threads 1 2 3 4 5 6 7 8 9 10 11 15 Take 753 409 345 316 305 286 280 282 273 273 264 266 The result of the test was a bit strange.。。。。。may be related to some

class StringBuilder SB = new StringBuilder (); Traverses all paragraphs in the document foreach (Paragraph Paragraph in section. Paragraphs) {for (int i = 0, cnt = paragraph. Childobjects.count; I To read a footnote:Read endnote:"VB.net"Imports spire.docimports Spire.Doc.DocumentsImports Spire.Doc.FieldsImports system.ioimports system.textnamespace Readfootnote_doc Class program Private Shared Sub Main (ByVal args as String ()) Dim document as Docume NT = New document () document. LoadFromFile

) in the project file.B. Cancel all class comments on audesk namespace usingC. manually add the Assembly: extensionapplication and assembly: commandclass attributes as needed.D. replace all system. clscompliantattribute. Autodesk. AutoCAD. runtime or system. type. Autodesk. AutoCAD. runtime with Autodesk. AutoCAD. runtime.E. replace all openmodes with Autodesk. AutoCAD. databaseservices. openmode.F. Compile and follow the prompts to modify the error, mainly including --. Force Type replacement.

Today in zgke (http://blog.csdn.net/zgke/archive/2008/12/11/3496721.aspx) saw the C # version of the drawing ean13 (commodity barcode) code, and then write a VB. NET version of their own. below is the interface and code: In the textbox, enter 13 as the barcode, for example, 6901028036955, and click the generate button to draw the commodity barcode. Private su

ArticleDirectory Microsoft. NET Framework 2.0 Ajax. Net plusionalmicrosoft. NET Framework 2.0 Below you will find some example web pages that are using Ajax. Net to get rid of the PostBack in typical ASP. NET applica

Read data from the databaseIn ASP. NET, you can use datareader and dataset to read data from the database. The differences between the two methods are as follows: To use a dataset object to read data, perform the following five steps:(1) Create a database connection. You can choose sqlconnection or oledbconnection.(2) Save the query in the sqldataadapter or oledbdataadapter object(3) use the fill method of

to register the AJAX class. 'Vb. NET: ASP. net ajax example PrivateSubPage_Load (sAsObject, EAsEventArgs) HandlesMyBase. Load Ajax. Utility. RegisterTypeForAjax (GetType(UnlockNotifier )) EndSub 'Traverse queue documents and check whether they are available PublicFunctionGetUnlockedDocuments ()AsDo

This article provides examples to illustrate the many possibilities of sending emails in ASP. NET, covering the e-mail format, priority, attachment and email encoding. ASP. NET is assigned a new email sending object named smtpmail. When using an smtpmail object to send an email from an ASP. NET page, follow these simple steps: ▲Contains The namespace required fo

A report is an indispensable part of an application. A good report can help people intuitively grasp the data and play an important role in decision-making. So what if we can implement reports more quickly and efficiently? This article uses a three-tier ASP. NET Program as an example to describe how to use crystalreport to create a report. It introduces a lot of ASP. NE