... bản Giáo dục - 2000.
Trang 17
Visual Basic
I. Giới thiệu về VisualBasic 6.0
Visual Basic 6.0 (VB6) là một phiên bản của bộ công cụ lập trình VisualBasic
(VB), cho phép người dùng tiếp cận ... VBA (Visual Basicfor Application).
Trường hợp trùng tên hằng trong những thư viện khác nhau, ta có thể chỉ rõ
tham chiếu hằng.
Trang 20
Visual Basic
CHƯƠNG 1 TỔNG QUAN VỀ VISUAL
BASIC ...
Visual Basic
Tài liệu tham khảo:
- MicrosoftVisualBasic 6.0 và Lập trình Cơ sở dữ liệu - Chương 4, trang
49 - Nguyễn Thị Ngọc Mai (chủ biên), Nhà xuất bản Giáo dục - 2000.
Trang 17
Visual...
...
Test a reference for Nothing or null Add this codeforVisual Basic:
Dim aBook As Book
If IsNothing(aBook) Then
‘ Add code here for a
‘ null reference
End If
Add this codefor C#:
Book aBook; ... Add this codefor C#:
Book[] books;
Create and initialize an array of
instances
Add this codeforVisual Basic:
Dim books() As Book = _
{ New Book(), New Book()}
Add this codefor C#: ... mspinput @microsoft. com.
IntelliSense, Microsoft, Microsoft Press, Visual Basic, Visual C#, Visual Studio, and
Windows are either registered trademarks or trademarks of Microsoft Corporation in the
United...
... XmlDocument.InnerXml Property [Visual Basic]
.NET Framework Class Library, XmlAttribute.InnerText Property [Visual Basic]
.NET Framework Class Library, XmlNode.OuterXml Property [Visual Basic]
Incorrect ... Server Activation [Visual Basic]
.NET Framework Developer's Guide, Initializing Leases [Visual Basic]
.NET Framework Developer's Guide, Client Activation [Visual Basic]
... an application named TestKingApp by using Visual C# .NET and VisualBasic .NET.
The application will use functions form a DLL written in unmanaged code.
One function requires the calling...
... Giới thiệu chung
Visual Basic là ngôn ngữ lập trình dùng để ràng buộc các đối
tượng trong ứng dụng với nhau thành một hệ thống hợp nhất.
Các chương trình của VBA (Visual Basicfor Application) ... Cấu trúc lặp:
a. FOR NEXT
Cú pháp:
FOR biến_đếm=giá trị đầu TO giá trị cuối [STEP bước lặp]
khối lệnh
NEXT biến_đếm
Ví dụ: Tính tổng 10 số nguyên dương đầu tiên
Tong = 0
FOR i =1 TO 10 [Step ... Macro trong VB
IV. Kích hoạt các ứng dụng khác
V. Gỡ rối mã VB
Phạm Thị Kim Ngoan 1
Phần 2: VISUALBASICFOR APPLICATION
(VBA)
Chương 1: TỔNG QUAN VỀ VB
Chương 2: CÁC KHAI BÁO TRONG VB
Chương 3:...
... form , and wit h it , a
revolut ion in the VisualBasic language, MicrosoftVisualBasic .NET. I believe t hat
Visual Basic .NET will pr ovide software developers wit h new opportunit ies for ... it acquaints y ou
wit h the basics of VisualBasic .NET w it hin Visual St udio .NET. You can t hink of
Visual Basic .NET as a m aj or upgrade t o t he VisualBasic 5 or 6 t hat you are
probably ... calls for running T-SQL inside of a
Visual Basic .NET applicat ion, I often find it convenient t o debug t he st atem ent in
Query Analyzer before inserting t he T- SQL code int o my Visual Basic...
...
I NFORMATI ON_ SCHEMA offers m any m ore v iews besides those illust rat ed in t he
preceding four bat ches. For exam ple, you can gat her inform at ion about check
const raint s for colum ... ions. Refer t o t he “I nform at ion Schem a View” t opic in Books Online
for an overv iew of t he I NFORMATI ON_SCHEMA views along wit h links defining t he
result set for each t ype of view ... row insert ion for t able t2. The col3 values for t he
first and second rows are displaced by 1. Because the insert ion for t able t 2
occurred im m ediat ely aft er t he one for table t 1,...
... WHERE ROUTINE_NAME = ’udfOrdersForCustomerID’)
DROP FUNCTION udfOrdersForCustomerID
GO
Create Inline table-valued function with a parameter.
CREATE FUNCTION udfOrdersForCustomerID(@CustID ... em ent s for each of t he nest ed OPENROWSET
funct ions in the prior sam ple. Therefore, t he result is ident ical for t he next scr ipt
and t he prior scr ipt . Howev er, t he codefor t he ... of a t able
from a UDF. Visu al Basic developers will feel com fort able w it h UDFs because in
m any ways t hey perform like funct ion procedures in Visual Basic. You can pass
UDF values through...
... SQL Server via HTTP. This for m of access relies on
the cr eat ion of a Micr osoft I nternet I nform at ion Ser vices ( I I S) virt ual
direct ory for each dat abase for which you prov ide access ... XML dat a. Wit h t he FOR XML clause for the T- SQL
SELECT st atem ent , SQL Ser ver provides a rout e for reading it s dat a
sources and ret urning resu lt set s in XML form at . OPENXML is ... Th e Address box show s th e form a t for refe rring t o a
te m plat e file t h at ret u rns all t h e row s from th e Sh ippe rs tab le.
The sim ple form at for the Address box in Figure...
...
procedure for a but t on, you can run VisualBasic .NET code t o perform com m on
act ions, such as opening a m essage box. Double- click a form ’s caption or a
cont rol on a form t o open t he Code ... op line of t he expanded code t o hide t he sect ion. This region
cont ains code necessary for a form . For exam ple, t he code inst antiat es an
inst ance of t he Form class. The sect ion ... h VisualBasic
.NET. Second, Visual I nterDev is gone t oo. Now you can use
the sam e Visual St udio .NET developm ent environm ent for
Windows and Web solut ions. I f y ou are a Visual Basic...
... sam ples, t his sam ple perform s form at t ing for t he form
in a form Load ev ent procedure. Figure 9 -15 sh ows For m 1 befor e and aft er
form at ting by t he Form 1_Load event procedure ... efficient ly. That ’s why Microsoft upgraded it s support for handling run-t im e
errors w it h VisualBasic .NET.
Visual Basic 6 and earlier v ersions of VisualBasic offered unst ruct ured ... Form1.
MyForm2Exit()
End Sub
Sub MyForm2Exit()
’Declare an instance of Form1 and show it.
Dim frmForm1 As New Form1()
frmForm1.Show()
’Pass local variables from Form2 module...
...
can build Web applications directly wit h VisualBasic .NET. Bu ilding Web
applicat ions wit h VisualBasic is highly sim ilar to creat ing Window s applications in
Visu al Basic. This sim ... First m ake Form 5 t he st art up object
for the solut ion. Second double- click Form 5 in Solution Explorer to open Form 5 in
Design v iew. Third right- click Form 5 and choose View Code to expose ... hat a form displays.
The sam ple has t wo form s— Form 1 and Form 6 in t he MyADODOTNETSam ples
solutions. Form 1 collect s a value designat ing a country and passes t he value on
to Form 6...
... can open the Visual St udio .NET docum ent ation fr om the
Program s m enu on the Window s St art butt on. Choose
Microsoft Visual St udio .NET Docum entat ion from t he
Microsoft Visual St udio ... view, you can see t he form and / form
tags inside bounding body and / body t ags. Just as t he form and / form t ags are
wit hin body and / body t ags, so are t he tags for t he but t on and ...
button, and som e labels. The form is on t he WebForm 1.aspx page in t he
QuerySt ringSam ple proj ect . The page’s form cont ains t he elem ents for a t ypical
login form . The t op t w o text...
...
provides code samples in VisualBasic .NET as well C# , you
may be misled to believe that the SQLXML Managed Classes
work only with C# . You can translate all the C# samples into
Visual Basic ... figure out the right format
for all the fields but she has filled out enough of the form on a Web page for your
organization to contact her and resolve any inconsistent data. For example, if you ... other words, the form field values don’t bind t o any data source.
Therefore, all data manipulation tasks must be performed in code. The sam ple in
this section is im portant for another reason....
... setting for the SqlXm lComm and object in the
SQLToXMLToHTMLForEm ployees procedure. It is the UnFormattedEmployees.xml
file that the MyXSL.xslt file transforms.
Figure 1 2 - 1 2 . The Unform ... adapt
Visual Basiccode is to ASP.NET. However, you might occasionally want to
generate output for a Web environm ent using XSLT. I n m y experience, one of t he
most popular uses for XSLT ... the
namespace for one of these Web services. The informal description
for the Web service is “A Table Processing Service.” Recall that this
name appears on the test interface for the service....
... Therefore, the
syntax for reading the output can be m ore straightforward. When
you have only one result set from a database object, the Single
Dataset format is a great output format for simplifying ... the SoapFor13 Web service into both
controls.
The following listing shows the form Load event procedure for
Form 5. It starts by instantiating a proxy variable, xws1, for the
SoapFor13 Web ... remove this watermark.
form with DataGrid and ListBox controls. Form 5 in Figure 13-19
shows the basic design for the sample. The Design view shows two
controls on a Windows form. The left control...