Скачать или смотреть DrWedding VB21 Visual Basic: Reading in from an external data file, with classes, lists, and strings

INDEX BELOW: As with all the videos in this series, the video starts with an Introductory Power Point presentation of what is going to be covered in this video. You can jump to 12:58 to skip the PowerPoint presentation.

In this video an external data file is read in using a list. A For-Each loop is used to go through the list and extract the data using string manipulation (indexof, substring, and trim). This information is stored in a class variable.

Finally, a Power Point presentation is used to review the major topics.

INDEX:

0:00 PowerPoint overview explaining terms and concepts
13:00 Create a Class of students to store the file information
15:00 Declare variables, open the file, and read values into a list
16:24 Use a For - Each Loop to access the list elements
17:27 Write a class method to extract the data from the file and stores it in the class variables
20:53 Create an array of the class - then update it to match the number of lines in the file
22:14 Pass the list elements to the class method
23:54 Review slides
25:51 Like / Subscribe / Comment / Disclaimer