Direct access files vb

Term of the Day. Best of Techopedia weekly. News and Special Offers occasional. Share this Term. Tech moves fast! Stay ahead of the curve with Techopedia! Join nearly , subscribers who receive actionable tech insights from Techopedia. FileSystem object to creating, copying, deleting and moving files and folders. File Encodings Describes file encodings and their use. Walkthrough: Manipulating Files and Directories in Visual Basic Demonstrates how to create a utility that reports information about files and folders.

Troubleshooting: Reading from and Writing to Text Files Lists common problems encountered when reading and writing to text files, and suggests remedies for each. Skip to main content. This browser is no longer supported.

Opening Balance. Ms access. Undesired Name? Follow us! Get the Latest Bytes Updates. By using this site, you agree to our Privacy Policy and Terms of Use. This needs to be called only once per session. The class can be re-used for closing and opening files once it's been initialised. It will call OpenSave for you though, if passed. OpenSave Named thus as in my usage it's working with Save files from a game.

It simply opens the specified file in the appropriate way. ReadBuf This procedure manages reading from the file into the File Buffer for later work. It ensures that the buffer has the correct data to cover the position in the file specified by lngPos. ReadNum Reads a number and converts it to Long. Numbers can be variable lengths so this can be specified to ensure only the right number of Bytes are included in the number.

ReadFile This reads the specified data from either the file or the buffer. Also, strings in. NET String variable. In fact,. NET actualy "JIT compiles" programs on the PC before running, so you can't really lay out structures in memory easily like the old days.

I wouldn't blame you for keeping the old method though: with the new method, you'll need to define a class, and then have a custom routine to convert from Byte to the properties of the class. More work than simply loading bytes from the file into memory. We define a class called StdSections2 which uses. NET strings and an array of Singles. We use 0-based arrays everywhere. We load the file using the new FileStream object, and use the Seek command to find the position we want.

We then load raw bytes out of the file, and use Chr and BitConverter. ToSingle to convert the raw bytes into strings and singles. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to correctly read a random access file in VB. NET Ask Question. Asked 9 years, 4 months ago. Active 5 years, 9 months ago. Viewed 9k times.