Question about Microsoft Visual Studio 2005 Standard Edition for PC
Dim allows you to declare a variable. It is short for "Dimension", and is an old old keyword. For example if you want to declare a variable called i that can hold an integer you would write:
Dim i As Integer
The Try keyword is used to allow you catch errors when they occur. If you didn't catch them, they would cause the program to end with an error report.
Try ' Code goes in here that might throw an error Catch Ex As Exception ' Code goes here to deal with any error End Try
The Me keyword refers to the current instance of the class in which the word appears. For example if the class is called Form1, then Me allows you to refer to the current instance of the class when the code is running.
Private Sub is formed from two Keywords. Private is an "Access modifier". When applied to a Sub it means that the Sub would not be visible outside the class. Sub is short for "Subroutine". A subroutine is a section of code that performs some useful function that you might want to run many times. For example you might want to do something whenever a button is clicked, and so you would write a subroutine with code in that will run whenever the button is clicked.
It would be better to ask programming questions in a visual basic forum. There are many on the internet. Search the internet for "visual basic forum". Also note that when you are using Visual Studio 2005, you can press the F1 key when you have placed the cursor in a word that you do not understand, and it will open the help and the relevant page.
These terms are very very difficult to understand when you have never programmed before. Usually it is best to take a lot of it on faith, and move on through the book or example that you are following without completely understanding it all. Over time, with practice, repetition and perseverance you will start to develop an understanding of the underlying concepts. They are hard to explain and hard to learn.
Posted on Jun 13, 2010
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Posted on Jan 02, 2017
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