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[Source] .NET converts the database varbinary string into a byte[] array

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Posted on 10/31/2023 9:09:35 PM | | | |
Requirements: The database field type is varbinary(MAX), and the database query shows 0x..., in fact, the field information can be read directly to byte[] through ADO.NET, but I want to convert the varbinary(MAX) string into a byte[] array through code.

C# BYTE[] and hexadecimal strings are converted to each other
https://www.itsvse.com/thread-10039-1-1.html

The varbinary(MAX) query is displayed in the format:0x[hexString 16 String]

The code is as follows:

First, the first 2 bits of the string need to be removed,Save the converted byte[] as an image, and then compare it with the original image, and the file is exactly the same, as shown in the figure below:



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