作者: 震驚 時(shí)間: 2025-3-21 20:54 作者: Debate 時(shí)間: 2025-3-22 03:35 作者: Gullible 時(shí)間: 2025-3-22 04:57 作者: 共同確定為確 時(shí)間: 2025-3-22 08:59
Variables and Operators,er of people working in a company is likely to be a whole number, that is an integer; the balance of a bank account is represent by a variable of a currency type, and so on. Visual Basic is one of the few languages which allow you to use variables without first declaring what type they are. Visual B作者: 補(bǔ)角 時(shí)間: 2025-3-22 15:59 作者: 補(bǔ)角 時(shí)間: 2025-3-22 18:53 作者: 隼鷹 時(shí)間: 2025-3-22 21:28
Intrinsic and ActiveX Controls, by Microsoft and many supplied by other companies. It is a good idea to use existing controls wherever possible: if they come from a well-known company they have been thoroughly tested and will help you to develop applications with as few bugs as possible in the shortest time.作者: Isthmus 時(shí)間: 2025-3-23 02:17
Mouse and Keyboard Events,et of events which occur when a key on the keyboard is clicked and when the mouse is moved or one of its button is clicked. In this chapter we are going to look at these events and also how they can be used to handle the dragging and dropping of a control.作者: 流逝 時(shí)間: 2025-3-23 06:59
Functions and Procedures,application we have developed so far. In addition to using event procedures we can create our own procedures. A procedure is just a collection of Visual Basic statements, in the case of event procedures they are linked to visual components, while any other procedures we create are not. The advantage作者: glucagon 時(shí)間: 2025-3-23 12:42 作者: 協(xié)定 時(shí)間: 2025-3-23 15:41
Debugging,t possible to prove that it is completely without error. Visual Basic has some useful tools that help you to track down bugs in your application when it does not perform as expected. In this chapter we are going to look at different types of bugs and how to use the debugger to find out where problem作者: 痛苦一下 時(shí)間: 2025-3-23 18:35
The Data Form Wizard,r to a query which uses many tables. When a query is executed a . object is produced that represents all of the records, returned by the query. The Data Form Wizard allows you to create forms which display the query results one record at a time, or many records using a grid. The Data Form Wizard use作者: 自然環(huán)境 時(shí)間: 2025-3-24 02:02 作者: 艱苦地移動(dòng) 時(shí)間: 2025-3-24 03:27
ADO Data Control Events,ds of the . object. We can duplicate the functionality of the ADO data control by writing a few lines of Visual Basic code and add additional functionality to allow new records to be entered into the database and existing records to be amended or deleted.作者: Genteel 時(shí)間: 2025-3-24 07:05 作者: 急性 時(shí)間: 2025-3-24 13:41
Controlling Program Flow,n for an older person: the application calculates a different cost depending on age. In the last chapter we saw how to respond to the events which occur when an application runs, but we did not see how to take these sorts of decisions, that is how to control the program flow.作者: 無(wú)能力 時(shí)間: 2025-3-24 16:56 作者: parasite 時(shí)間: 2025-3-24 19:26 作者: Ballad 時(shí)間: 2025-3-24 23:57 作者: 最小 時(shí)間: 2025-3-25 03:51 作者: indicate 時(shí)間: 2025-3-25 09:26
Mychael Danna: Music as Metaphor,developing a simple application, it may be better to use the Visual Data Manager or the Data Form Wizard which will be faster and probably more bug-free than developing the application without these tools.作者: 清楚 時(shí)間: 2025-3-25 15:37 作者: 最高峰 時(shí)間: 2025-3-25 17:19
Women and the Ever-Present Past,plicated to test and reduces the number of possible errors. A function is very similar to a procedure except that it returns a value. In this chapter we are going to see how to create and use procedures.作者: 長(zhǎng)矛 時(shí)間: 2025-3-25 21:13 作者: 吹氣 時(shí)間: 2025-3-26 00:57 作者: upstart 時(shí)間: 2025-3-26 05:56
Object-Oriented Programming,reds of word processor packages; they all do similar things and yet they have all been written from very low-level components. One of the key ideas of object-oriented programming is that reusable components can be used as the building blocks of our applications. We do this by creating classes.作者: Laconic 時(shí)間: 2025-3-26 11:44
The Visual Basic IDE, panic when you see the Visual Basic Integrated Development Environment (IDE). It is one of the best development environments available and you will find that after a few hours it will look familiar. In this chapter we are going to look at the key aspects of the IDE. In particular we are going to look at:作者: frozen-shoulder 時(shí)間: 2025-3-26 14:13 作者: 撤退 時(shí)間: 2025-3-26 17:23
Variables and Operators,asic does offer you the option of declaring the type of variables before using them, and there are some important benefits to doing this. The type of a variable determines what operations you can carry out on it, for example you cannot multiply a text string.作者: 自制 時(shí)間: 2025-3-26 22:04
ADO and Data-Bound Controls,developing a simple application, it may be better to use the Visual Data Manager or the Data Form Wizard which will be faster and probably more bug-free than developing the application without these tools.作者: 類型 時(shí)間: 2025-3-27 01:58 作者: decode 時(shí)間: 2025-3-27 07:19 作者: 熱情贊揚(yáng) 時(shí)間: 2025-3-27 11:09
Contemporary Fictions of Multiculturalismta Form Wizard allows you to create forms which display the query results one record at a time, or many records using a grid. The Data Form Wizard uses the ADO (ActiveX Data Object) control rather than the Data control and therefore can access databases which are either local or remote.作者: 救護(hù)車 時(shí)間: 2025-3-27 16:29 作者: 拋物線 時(shí)間: 2025-3-27 19:25 作者: hazard 時(shí)間: 2025-3-28 01:51
https://doi.org/10.1007/978-981-32-9595-7—alone or networked computer system, you can create your own controls and even develop applications for the Internet. Visual Basic is closely integrated with Microsoft’s database tools, in fact virtually any application you wish to create can be produced in Visual Basic.作者: STYX 時(shí)間: 2025-3-28 04:52 作者: 小爭(zhēng)吵 時(shí)間: 2025-3-28 07:45 作者: 大方一點(diǎn) 時(shí)間: 2025-3-28 13:11
Export Control of Dual-Use Items, by Microsoft and many supplied by other companies. It is a good idea to use existing controls wherever possible: if they come from a well-known company they have been thoroughly tested and will help you to develop applications with as few bugs as possible in the shortest time.作者: 無(wú)辜 時(shí)間: 2025-3-28 15:51 作者: Terminal 時(shí)間: 2025-3-28 21:26
Kinds of Stasis in David Foster Wallace,t possible to prove that it is completely without error. Visual Basic has some useful tools that help you to track down bugs in your application when it does not perform as expected. In this chapter we are going to look at different types of bugs and how to use the debugger to find out where problems are occurring.作者: Habituate 時(shí)間: 2025-3-29 00:50 作者: Synchronism 時(shí)間: 2025-3-29 03:36
https://doi.org/10.1007/978-3-030-17581-8 suitable Web browser. The terminology ActiveX document is a confusing one, the analogy is often made between Microsoft Word document which can viewed within the Word application as well as other containers.作者: 似少年 時(shí)間: 2025-3-29 07:23
Why Use Visual Basic 6.0?,—alone or networked computer system, you can create your own controls and even develop applications for the Internet. Visual Basic is closely integrated with Microsoft’s database tools, in fact virtually any application you wish to create can be produced in Visual Basic.作者: 藐視 時(shí)間: 2025-3-29 12:15 作者: placebo 時(shí)間: 2025-3-29 16:38 作者: 松軟 時(shí)間: 2025-3-29 21:52 作者: 純樸 時(shí)間: 2025-3-30 00:08 作者: INCUR 時(shí)間: 2025-3-30 07:51 作者: 品嘗你的人 時(shí)間: 2025-3-30 10:07
ADO Data Control Events,ds of the . object. We can duplicate the functionality of the ADO data control by writing a few lines of Visual Basic code and add additional functionality to allow new records to be entered into the database and existing records to be amended or deleted.作者: Diatribe 時(shí)間: 2025-3-30 12:54
ActiveX Documents, suitable Web browser. The terminology ActiveX document is a confusing one, the analogy is often made between Microsoft Word document which can viewed within the Word application as well as other containers.作者: 無(wú)所不知 時(shí)間: 2025-3-30 18:48 作者: ovation 時(shí)間: 2025-3-30 23:23
Contemporary Environmental Problems in NepalYou can create Windows applications, DLLs, ActiveX controls, Web-based applications and powerful database systems. The only negative aspect of this flexibility is that if you are new to Visual Basic the range of options available can seem overwhelming. It is very important in the early stages not to作者: NAUT 時(shí)間: 2025-3-31 04:09 作者: dissent 時(shí)間: 2025-3-31 06:07
Protestant Perspectives on End of Life Careexample, if you are writing an application for calculating the cost of car insurance and a person gives his age as 18, the premiums will be higher than for an older person: the application calculates a different cost depending on age. In the last chapter we saw how to respond to the events which occ作者: 馬賽克 時(shí)間: 2025-3-31 13:04 作者: Relinquish 時(shí)間: 2025-3-31 17:08 作者: 聲明 時(shí)間: 2025-3-31 17:42
Jianxin Pan,Jiajuan Liang,Guoliang Tianur own custom dialog boxes, but there are also a set of standard dialogs for operations that applications frequently use, for example there is a standard dialog which is used for opening a file. It is no accident that every Windows application displays the same format of dialog box when carrying out作者: LAIR 時(shí)間: 2025-3-31 23:29 作者: 牛的細(xì)微差別 時(shí)間: 2025-4-1 02:56 作者: 使長(zhǎng)胖 時(shí)間: 2025-4-1 06:37
