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Excel operations in VB (actually better than C)

I am using Excel2000, which must be referenced in the project: Add reference-> Com-> Microsoft Excel 9.0 Object Library 1 open Excel dim myexcel as new Excel. Application () myexcel. visible = true 2. add new workbook myexcel. Workbooks. add () 3. Set the second worksheet as the active worksheet myexcel. worksheets (2). Acivate () 4. open the specified Excel file myexcel. workbooks. open ("c: \ my.xls ") 5. Show the Excel window myexcel. visible = true 6. Change the title bar of Excel. myexcel.

Connection Manager connectionmanager in csla

When csla implements a nested database connection, use a database connection to view the instance: Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 private string _ conn = "connection string "; 2 Private void inserta () 3 { 4 using (var ctx = connectionmanager 5 { 6 using (var cm = CTX. Connection. createcommand ()) 7 { 8 cm. commandtype = commandtype.

C # database access through transactions

(C # transaction) 1. Create the transaction structure Sqlconnection = new sqlconnection ();... Initialize the connection // Start the transactionSqltransaction =Sqlconnection. begintransaction ();// Apply the transaction to the commandSqlcommandSqlcommand = new sqlcommand ();Sqlcommand. Connection =Sqlconnection;Sqlcommand. Transaction = sqltransaction;Try{// Use sqlcommand to perform data operations...// Submitted successfully Sqltransaction. Commit ();}Catch (exception ex){// Error rollbackSq

Android calculates the resolution, pixel, density, screen size, and DPI of the pad or mobile phone.

between the two screens? For example, if the screen width of mobile phone A is 5 Cm, the width of mobile phone B is 10 Cm, and the resolution width is 320, when the same image is displayed, the pictures on mobile phone B will be larger, and there is no clear picture on mobile phone. Why? This is our common concept of density (DPI), that is, the number of dots per inch. There are 5CM points in a row of 320,

Android image color processing,

. iv); // set the final bitmap bitmap1 = BitmapFactory. decodeResource (getResources (), R. drawable. ic_launcher); // creates a bitmap alterBitmap = Bitmap. createBitmap (bitmap1.getWidth (), bitmap1.getHeight (), bitmap1.getConfig (); // use alterBitmap as the template to create a canvas = new Canvas (alterBitmap ); // create a paint brush and set the property Paint = new paint (); paint. setColor (Color. BLACK); // create a Matrix final matrix Matrix = new Matrix (); // specify the color matr

GDI transparent rotation and translation Image

// Declare the variable. In the class definition, unit srcunit; gdiplus: Image * imgrectf rectf2; colormatrix * cm; imageattributes * ATT; // initialize the variable, in the oninitdialog initialization function, wchar * w; Len = multibytetowidechar (cp_acp, 0, m_pimgpath.c_str (),-1, null, 0); W = new wchar [Len]; multibytetowidechar (cp_acp, 0, m_pimgpath.c_str (),-1, W, Len); image1 = new gdiplus: image (w); // you can specify the transparency coeff

Discussion on interface inheritance and overwriting of basic interface members

;Widthinches = width;} // Explicitly implement the members of ienglishdimensions:Float ienglishdimensions. Length (){Return lengthinches;} Float ienglishdimensions. Width (){Return widthinches;} // Explicitly implement the members of imetricdimensions:Float imetricdimensions. Length (){Return lengthinches * 2.54f;} Float imetricdimensions. Width (){Return widthinches * 2.54f;} Static void main (){// Declare a class instance box1:Box box1 = new box (30366f, 20366f ); // Declare an instance of the

☆☆☆☆☆How to prevent [SQL injection] ☆☆☆☆☆☆

Parameterized query. The bottom layer of ADO. NET will handle the problem of SQL injection (SQL server2005 is required) Use the following parameterized Query System. Data. sqlclient. sqlconnection CNN = new system. Data. sqlclient. sqlconnection ("connection string ");System. Data. sqlclient. sqlcommand CM = new system. Data. sqlclient. sqlcommand ();Cm. Connection = CNN;

Configuration of the Ehcache

/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd">"CacheManager"/> "cm" class="Com.spring.ehcache.CacheMethod">"ehcachemanagerfactory" class="Org.springframework.cache.ehcache.EhCacheManagerFactoryBean"> "configlocation"Value="Classpath:ehcache.xml"/> 'CacheManager' isDefined--> "Caachemanager" class="Org.springframework.cache.ehcache.EhCacheCacheManager"> "CacheManager" ref="ehcachemanagerfactory"/> "Transactionaware"Value

Clrmamepro How to manage ROM

First, start Clrmamepro Tutorials below provide clrmamepro software download Oh ~ Download and unpack the software after running.   Ii. Loading of data 1. Data sources A, can go to the official station of CM to download the latest CM packet b, using Kawaks to generate CM database: Tools-> Generate Database Files (clrmamepro) 2. Loading data Start

LaTeX a few common ways to insert a picture in a document _latex

that support inserting an EPS-formatted graphics file in a latex document, mainly: (1) using Includegraphics Macro command (GRAPHICX package)First you need to add the file Description section of the Latex document:/USEPACKAGE{GRAPHICX}Then refer to the place where you want to insert the picture:/includegraphics[height= height]{picture file name} or:/includegraphics[width= width]{picture file name}The height and width are the height and width that you want the picture to print, and you must give

SqlConnection, the common method of Sqltransaction,sqlcommand

= Kinouid; cmupd.parameters["@TRKYMD"]. Value = upsysdate.date; cmupd.parameters["@TRKTIME"]. Value = upsysdate; RTN = Cmupd.executenonquery (); Cmupd.commandtext = STB. ToString (); RTN = Cmupd.executenonquery (); Console.WriteLine (RTN. ToString ()); Console.ReadLine (); } catch (Exception ex) {throw ex; }} private static Int32 Getby

Standard document Size

One inch 2.5x3.5 (cm); Small one inch 2.2x3.2 (cm); Freshman inch 3.3x4.8 (cm) two inch 3.5x4.9 (cm); Small two-inch 3.5x4.5 (cm); The sophomore inch 3.5x5.3 (cm) are standard size, Common Document Specifications ------

WPS demo triggers allow objects to increase and decrease in freedom

Production method: First, the production step by 1 incremental effect 1, a new WPS demo. Click on the "Shape" "form" tool in the "Insert" menu, draw a square fill color in the Edit area default (187, 224, 227), select a small square click the "Shape Outline" of the "drawing Tool" for "wireless stripe color." Select the square, and on the expanded Drawing Tools menu, click the Shape size icon for the toolbar, such as (Figure 1), and the width and height are 1 centimeters, OK. 2, "C

PS How to make 1-inch document Photo tutorial

About PS How to make 1-inch document Photo tutorial 1. Open Photoshop and the photos you need to make 2. In the toolbar, point cutting tool (width: 2.5 cm, Height: 3.5 cm, resolution: 300 pixels), select the appropriate location in the photo, point property Bar (OK) (the following figure) 3. Point image one Canvas size: (width: 0.4 cm,

Safety grade analysis of cable for wiring specification

Cabling Security One of the most recognized authorities is the American Insurance Business Laboratory (UL), a non-profit organization that is committed to establishing and maintaining safety standards for a wide variety of industries. UL for the wiring industry provides a large number of quality inspection services. The services provided include the following: included in the UL list. Check wiring and related hardware security levels. UL test. According to the Tia/eia wiring standard set out

How to use Vim to password protect files in Linux

Vim has an-X option that allows you to encrypt files when you create them. Once you run the following VIM command, you will be prompted to enter a key:$ vim-x file.txt Warning: Weak encryption method is being used; see: Help ' cm ' Input encryption key: ******* Enter the same key again: *******If you enter the key correctly for the second time, you can modify the file.650) this.width=650; "title=" "src=" Http://s2.51cto.com/wyfs02/M01/97/91/wKioL1kvxF

JavaScript Excel operation knowledge Point _javascript skill

1 Creating var xlobj = new ActiveXObject ("Excel.Application"); var xlbook = XLObj.Workbooks.Add; New Workbook var excelsheet = xlbook.worksheets (1); Create a worksheet 2. Save the form Excelsheet.saveas ("C:\\test.") XLS "); 3. Make Excel visible through application objects ExcelSheet.Application.Visible = true; 4. Print Xlbook.printout; Or: Excelsheet.printout; 5. Close Xlbook.close (Savechanges=false); Or: Excelsheet.close (Savechanges=false); 6. Closing the process ExcelSheet.App

The GridView control implements data modification (Section 9th) _ Practical Tips

The previous article is to use the GridView control to achieve the display and deletion of data, this section of the design page, using the GridView control to implement the data update operation, when the news content is not entered when the update prompts "cannot be empty."Learning content:Learning Tasks one uses the GridView control to implement updates to informationStep one: The data source control defines the data by writing the code in the Newschuli.cs page as follows: public stat

How to make an inch, two-inch, six-inch photo-drawing technology

How to make an inch, two inches, six inches photos hope that we will no longer need to be anxious to use an inch of the trouble, their own production and then directly to the photo shop print on the line! The first thing to know is the quantitative relationship:6 inch =10.2cmx15.2cm1 inch =2.5cmx3.5cm2 inch =3.5cmx5.3cm1. Open the photo you want to make2. In the toolbar, point cutting tool (width: 2.5 cm, Height: 3.5

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