how to write comments in vb code

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How to write comments in vb code master thesis at

How to write comments in vb code

So, to use this button, first of all, you need to select the line of the code and then click on the button. There could be a situation where you need to enter a comment in multiple lines, like a block of the comments. The moment you click the comment button it will convert all the lines into a multi-line comment block. This the third way to insert a comment into a VBA code. Well, this is not a popular way but still you can use it.

So instead of using an apostrophe, you can use the keyword REM at the starting of a comment line. When you record a macro code using the macro recorder, you get an option to add a description before you record it. And when you open the VBE to see the recorded code, you can see the code which you have added as a comment.

In the below example you can see that I have three lines of code, where I have added comments after each line to describe it. But thanks to Gaurav , I have found a way to create a shortcut key to insert an apostrophe. VBA gives you an option to change the format of the comment if you want to do so. As you can see, I have changed the color of the comment text from green to blue.

Now all the comments which I have in the code window are of blue color. This symbol tells the Visual Basic compiler to ignore the text following it, or the comment. Comments are brief explanatory notes added to code for the benefit of those reading it. It is good programming practice to begin all procedures with a brief comment describing the functional characteristics of the procedure what it does. This is for your own benefit and the benefit of anyone else who examines the code.

You should separate the implementation details how the procedure does it from comments that describe the functional characteristics. When you include implementation details in the description, remember to update them when you update the function. Comments can follow a statement on the same line, or occupy an entire line. Both are illustrated in the following code. If your comment requires more than one line, use the comment symbol on each line, as the following example illustrates.

The following table provides general guidelines for what types of comments can precede a section of code. These are suggestions; Visual Basic does not enforce rules for adding comments. Write what works best, both for you and for anyone else who reads your code.

Every important variable declaration should be preceded by a comment describing the use of the variable being declared. Variables, controls, and procedures should be named clearly enough that commenting is needed only for complex implementation details.

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The code of line after the apostrophe is simply ignored by the compiler. To code a comment, type an apostrophe followed by the comment. You can use this technique to add a comment on its own line or to add a comment after the code on a line. Often when you code, you may want to comment out an entire block of code statements.

Under normal circumstances, to do so you must Comment out each line individually. Another way to comment out one or more lines of code to select the lines and click on the Comment or UnComment button in the Text Editor toolbar. Tips to Comment your code.

Conclusion Hope the article would have helped you in understanding comments and their usage and importance in coding. Proper usage of comments makes your code easily to understand and improve performance. Your feedback and constructive contributions are welcome. Please feel free to contact me for feedback or comments you may have about this article.

Home Explore Tags Contribute. Home » VB. Comments in VB. Posted in VB. Tags: apostrophe , comment , comments , UnComment , vb. In this article I will explain about comments and their usage and importance in coding. Tips to Comment your code Use comments only for portions of code that are difficult to understand. Comments are used to help document what a program does and what the code with it does. Keep the comments simple and direct. Make sure that your comments are correct and up-to-date.

There is no point in commenting correctly on code if the comments are not changed with the code. Both code and comments must move in parallel, otherwise the comments will actually make life more difficult for developers who maintain your code. During testing, you can comment out lines of code by coding an apostrophe before them. This is useful for testing new statements without deleting the old statement. Align comments in consecutive lines For multiple lines of code with trailing comments, align the comments so they will be easy to read.

Because tab stops can vary among editors and IDEs, the best approach is to use spaces. Use paragraph comments If you comment is very long in line of text break into paragraph show it can be seen in a single view. Instead of writing like this: ' Author Puran Singh Mehra.

Xyz Company. Created on 7th December P. Break into different lines like this: ' Author Puran Singh Mehra. Consistent style of commenting Some people believe that comments should be written so that non-programmers can understand them.

Others believe that comments should be directed at developers only. Comments are consistent and always targeted to the same audience. Comments should target to developers and non-developers. There could be a situation where you need to enter a comment in multiple lines, like a block of the comments.

The moment you click the comment button it will convert all the lines into a multi-line comment block. This the third way to insert a comment into a VBA code. Well, this is not a popular way but still you can use it. So instead of using an apostrophe, you can use the keyword REM at the starting of a comment line. When you record a macro code using the macro recorder, you get an option to add a description before you record it.

And when you open the VBE to see the recorded code, you can see the code which you have added as a comment. In the below example you can see that I have three lines of code, where I have added comments after each line to describe it. But thanks to Gaurav , I have found a way to create a shortcut key to insert an apostrophe. VBA gives you an option to change the format of the comment if you want to do so. As you can see, I have changed the color of the comment text from green to blue. Now all the comments which I have in the code window are of blue color.

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