visual basic book

Digest Back to homepage ◎ 　 Visual Basic Skills 1. Prevent the program from being repeatedly run. If you do not want your VB Application to be repeatedly run by others by double-clicking the icon multiple times, this may cause insufficient memory or other accidents, you can add the following lines in the program:Private sub form _ loadI

Implement phonetic ("sounds-like") name searches with double metaphone Part II: Visual Basic and relational database solutions by Adam Nelson For COM, only the usage is described here: regsvr32 metaphonecom. dll, then you can use mphone. computemetaphonekeys searchword, primarykey, alternatekey Relational databases are introduced to express the common dynamic speech data in reality. The map (hashtable)

On the new Pocket PC device, you can click and hold to confirm the operation. This is a great way to show your application what operations are being performed. However, when you use Microsoft Embedded Visual Basic Click length and press OK. You must add this support by yourself. First, you need to capture the window messages sent to each control (the most important is the wm_lbuttondown message ). You can a

1, first open the Word document, you can click the Word 2003 program in the Start menu. 2, click "Tools"--"Macros"--"security". 3, enter the Security Level tab interface, select "Very high." Only macros installed in trusted locations are allowed to run. All other signed and signed macros will be disabled. ” 4, switch to the "reliable publisher" label. 5. Delete all objects and tick the check box "Trust all installed add-ins and templates" and

http://msdn.microsoft.com/zh-cn/library/ms160854 (v=sql.90). aspx Script sample (Reporting Services) SQL Server This topic has not been rated-evaluate this topic The following example provides scripts written for Reporting Services using Microsoft Visual Basic. NET. The scripting examples are usually for a single feature or technical problem, and are task-based. You can use script files and the Reporting S

Visual Basic provides powerful functions for my objects. My object provides a wide range of functions. This section describes top-level members. My top-level members include:Application: provided with the current applicationProgramRelated attributes and method events.COMPUTER: provides the owner used to manage computer components.User: obtains the information of the current user. (Windows: This object is r

Example 1 Basic examples 1 , new Project Start Visual Studio 2005, create a new project named CAD development, as shown in the following illustration: 2 , adding references Add AutoCAD references AutoCAD 2007 type library and autocad/objectdbx Common 17.0 type library, as shown in the following illustration: 3 , global variable definition Defined in the global variable as follows: Autodesk.AutoCAD.

The visual client of management Redis currently has three more popular: Redis client; Redis Desktop Manager; Redis Studio. Here now to introduce Redis Client download installation and basic use. Redisclient is a GUI tool for Redis clients, written using Java SWT and Jedis, to make it easy for developers to browse Redis databases. The software supports Simplified Chinese, which is very suitable for domesti

In VB, the MDI (Multiple document interface, multi-window program) Form is defined: "The MDI form acts as a background window for a program that contains a form with the MDIChild property to True." In a VB program, there can be at most one MDI parent form and multiple MDI child forms, and the way to create an MDI parent form is to select "New MDI Form" in the VB File menu. When the MDI program runs, if the child window has a menu, the child window's menu automatically replaces the parent Window

Even if youProgramSecurity experience and knowledge are very limited, and some basic measures should be taken to protect your web applications. The following sections of this topic provide the minimum security guidelines applicable to all web applications. Writing SecurityCodeAnd more details on best practices for ensuring application security, for more information, see writing security code and guidance from Microsoft patterns and practices, a

visual| stored procedures return values from stored procedures The example above has one disadvantage. The Northwind Customers table uses a primary key in alphanumeric form and must be generated by the application that inserts the data. In other words, if you use the above program to insert a new record, you must create a five-character value for CustomerID. In real software, it is more common to automatically generate primary keys for new records. P

TrafficLight control is displayed. Test controls: Press the different lights to see if they are lit. You can also test the BorderWidth property to try to set the Status property of the lamp in code. Summary Although TrafficLight is a simple control (although it was once used by developers to use it in real projects), it shows all the principles needed to develop complex controls, including: Add a property to the control. Use default values and descriptions to reconcile properties with the

va{Select {} intermediate content, including {}va[SELECT [] intermediate content, including {}VA (check () middle content, including {}viChange the above a to I, not including the corresponding brackets;VI "SELECT" "Middle contentVI ' selected ' in the middle of the content,Vis selects a sentenceVib Select a blockVIW Select a single wordVIP Select a paragraphVim's basic quick Action (ii)--visual mode

Profile This step-by-step article describes how to create a Component Object Model (COM) component for use in Active Server Pages (ASP). COM components for use by ASP Create a new ActiveX DLL project in Visual Basic. Name the project VBASPProject and name the class Vbaspclass. Paste the following public methods into the class module: Public Function GetString () as String ' Return the string Hello world!

Using the CommandButton control A command button control is used to start, break, or end a process. When clicked, a command is invoked that has been written to the Click event procedure. Most Visual Basic applications have command buttons that allow users to click buttons to perform actions. When clicked, the button not only performs the appropriate action, but also looks like it is pressed and loosened,