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   ► KB ►► Role-Based T...Coding & OO   Print This    All Groups  

Coding & OO Most Read KB Posts

Page Contents


Most Read KB Articles Since 3/28/2008

Coding & OO Group

  KB Article    

Mike Prestwood
1. OO/UML: Aggregation versus Composition

Our most popular article in the history of our online community! Explains the "is a", "has a", "uses a", and "looks like" relationships (updated May 2007). "Is a" is inheritance, "looks like" is interfaces, "has a" is aggregation, and "uses a" is composition.

Posted to KB Topic: Object Orientation (OO)
16 years ago, and updated 8 years ago
(10 Comments , last by goldieridge.g )

Article
Nothing New Since Your Last Visit
114181
Hits

Mike Prestwood
2. Borland Database Engine 5.202

Download BDE 5.202 (includes a small BDE Information utility for testing the installation).

Posted to KB Topic: Borland Database Engine
11 years ago, and updated 14 months ago
(15 Comments , last by Rodney.R2 )

Download

Article
Nothing New Since Your Last Visit
100074
Hits

Wes Peterson
3. Uninstalling the BDE

It's rare, but sometimes it may be necessary to remove the BDE from a machine. Not for the faint of heart, and with serious possible consequences, we explain how to manually uninstall the BDE. This is intended for developers or power users.

Posted to KB Topic: Borland Database Engine
10 years ago, and updated 9 years ago

Article
Nothing New Since Your Last Visit
27325
Hits

Mike Prestwood
4. Interface

An element of coding where you define a common set of properties and methods for use with the design of two or more classes.

Both interfaces and abstract classes are types of abstraction. With interfaces, like abstract classes, you cannot provide any implementation. However, unlike abstract classes, interfaces are not based on inheritance. You can apply an Interface to any class in your class tree. In a real sense, interfaces are a technique for designing horizontally in a class hierarchy (as opposed to inheritance where you design vertically). Using interfaces in your class design allows your system to evolve without breaking existing code.

Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 9 years ago

Definition
Nothing New Since Your Last Visit
21117
Hits

Mike Prestwood
5. An Introduction to Object Orientation Overview and introduction to object orientation. When you analyze, design, and code in an OO way, you "think" about objects and their interaction. This type of thinking is more like real life where you naturally think about how "this object" relates to "that object". Classes represent the "design" of an existing object. The values or properties of an existing object is it's current state. When designing classes, OO supports many features like inheritance (like real-life where you inherit your parents characteristics), encapsulation (hiding data), and polymorphism (the ability of one thing to act like another or in different ways).
Posted to KB Topic: Object Orientation (OO)
15 years ago, and updated 9 years ago
(4 Comments , last by mprestwood )

Article
Nothing New Since Your Last Visit
21033
Hits

Wes Peterson
6. Installing BDE using Merge Modules The new and "approved" way to install the BDE is by way of mege modules. This is quite a bit different than the traditional ways of using a pre-made program, or incorporating BDE Cab files (from, say, your Delphi installation). Caveat: This is new news for me, and I don't claim to know or understand everything there is to know on this topic but I do have some helpful findings for you.
Posted to KB Topic: Borland Database Engine
10 years ago, and updated 9 years ago
(2 Comments , last by Wes )

Article
Nothing New Since Your Last Visit
19199
Hits

Mike Prestwood
7. Abstract Class / Abstract Member

An abstract class member is a member that is specified in a class but not implemented. Classes that inherit from the class will have to implement the abstract member. Abstract members are a technique for ensuring a common interface with descendant classes. An abstract class is a class you cannot instantiate. A pure abstract class is a class with only abstract members.

Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 9 years ago

Definition
Nothing New Since Your Last Visit
18112
Hits

Mike Prestwood
8. ISelectionContainer already exists error

Microsoft Visual Studio The service Microsoft.VisualStudio.Shell.Interop.ISelectionContainer already exists in the service container. Parameter name: serviceType

10 years ago, and updated 9 years ago
(1 Comments , last by Anonymous )

Error
Nothing New Since Your Last Visit
17341
Hits

Mike Prestwood
9. How to check what BDE version is installed.

Q. I've updated my BDE from version 5.01 to version 5.2.0.2 but the About BDE Administrator dialog still shows version 5.01?

A. Your update may have taken. Updates typically just replace the DLLs the BDE uses so you may have the latest installed.

Version Information
To see what version of the BDE engine you "actually" have installed, you need to look at the Version Information from within the BDE Administrator. Select Object | Version Information... to see the DLL version numbers

Posted to KB Topic: Borland Database Engine
10 years ago, and updated 10 years ago
(3 Comments , last by Ronald.B )

KB Post
Nothing New Since Your Last Visit
16995
Hits

Mike Prestwood
10. Class Constructor

Constructors are called when you instantiate an object from a class. This is where you can initialize variables and put code you wish executed each time the class is created. When you initially set the member fields and properties of an object, you are initializing the state of the object. The state of an object is the values of all it's member fields and properties at a given time.

Posted to KB Topic: Object Orientation (OO)
9 years ago

Definition
Nothing New Since Your Last Visit
16909
Hits



Most Read by Members

Coding & OO Group

  KB Article    

Mike Prestwood
1. Borland Database Engine 5.202

Download BDE 5.202 (includes a small BDE Information utility for testing the installation).

Posted to KB Topic: Borland Database Engine
11 years ago, and updated 14 months ago
(15 Comments , last by Rodney.R2 )

Download

Article
Nothing New Since Your Last Visit
100074
Hits

Mike Prestwood
2. OO/UML: Aggregation versus Composition

Our most popular article in the history of our online community! Explains the "is a", "has a", "uses a", and "looks like" relationships (updated May 2007). "Is a" is inheritance, "looks like" is interfaces, "has a" is aggregation, and "uses a" is composition.

Posted to KB Topic: Object Orientation (OO)
16 years ago, and updated 8 years ago
(10 Comments , last by goldieridge.g )

Article
Nothing New Since Your Last Visit
114181
Hits

Wes Peterson
3. Uninstalling the BDE

It's rare, but sometimes it may be necessary to remove the BDE from a machine. Not for the faint of heart, and with serious possible consequences, we explain how to manually uninstall the BDE. This is intended for developers or power users.

Posted to KB Topic: Borland Database Engine
10 years ago, and updated 9 years ago

Article
Nothing New Since Your Last Visit
27325
Hits

Adam Lum
4. Storing your .NET Application Settings Storing settings and configuration information for your .NET application can be achieved in a number of ways including using the app.config file and the ConfigurationManager class, using the registry, and in your own custom configuration file.
Posted to KB Topic: General .Net Concepts
10 years ago, and updated 10 years ago
(3 Comments , last by kroy )

KB Post
Nothing New Since Your Last Visit
12391
Hits

Wes Peterson
5. Installing BDE using Merge Modules The new and "approved" way to install the BDE is by way of mege modules. This is quite a bit different than the traditional ways of using a pre-made program, or incorporating BDE Cab files (from, say, your Delphi installation). Caveat: This is new news for me, and I don't claim to know or understand everything there is to know on this topic but I do have some helpful findings for you.
Posted to KB Topic: Borland Database Engine
10 years ago, and updated 9 years ago
(2 Comments , last by Wes )

Article
Nothing New Since Your Last Visit
19199
Hits

Wes Peterson
6. BDE Broken? Recent Microsoft Betas may be the culprit

We encountered a situation in which programs that use Borland's BDE suddenly stopped working on some of our machines. The really helpful error message was "Operation not applicable!" (The error code is 10756)

Posted to KB Topic: Borland Database Engine
12 years ago, and updated 9 years ago

KB Post
Nothing New Since Your Last Visit
13252
Hits

Mike Prestwood
7. An Introduction to Object Orientation Overview and introduction to object orientation. When you analyze, design, and code in an OO way, you "think" about objects and their interaction. This type of thinking is more like real life where you naturally think about how "this object" relates to "that object". Classes represent the "design" of an existing object. The values or properties of an existing object is it's current state. When designing classes, OO supports many features like inheritance (like real-life where you inherit your parents characteristics), encapsulation (hiding data), and polymorphism (the ability of one thing to act like another or in different ways).
Posted to KB Topic: Object Orientation (OO)
15 years ago, and updated 9 years ago
(4 Comments , last by mprestwood )

Article
Nothing New Since Your Last Visit
21033
Hits

Mike Prestwood
8. How to check what BDE version is installed.

Q. I've updated my BDE from version 5.01 to version 5.2.0.2 but the About BDE Administrator dialog still shows version 5.01?

A. Your update may have taken. Updates typically just replace the DLLs the BDE uses so you may have the latest installed.

Version Information
To see what version of the BDE engine you "actually" have installed, you need to look at the Version Information from within the BDE Administrator. Select Object | Version Information... to see the DLL version numbers

Posted to KB Topic: Borland Database Engine
10 years ago, and updated 10 years ago
(3 Comments , last by Ronald.B )

KB Post
Nothing New Since Your Last Visit
16995
Hits

Mike Prestwood
9. Composition A composite relationship means that a class cannot exist by itself. It must exist as a member of another class. A composite relationship is indicated by a solid line with a solid diamond head pointing to the part class. Alternatively, you can show this relationship graphically with the part class nested in the whole class.
Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 10 years ago

Definition
Nothing New Since Your Last Visit
8936
Hits

Mike Prestwood
10. Aggregation

Aggregations indicate a whole-part relationship, and are known as "has-a" or "is part of" relationships. An Aggregation relationship is indicated by a line with a hollow diamond.

Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 9 years ago

Definition

KB Post
Nothing New Since Your Last Visit
16103
Hits
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