请求源代码 [英] Request For Source Code

问题描述

请发送代码以使用MS-Access和VB.net在数据库中存储和检索图像

Please Send a code to store and Retrieve images using MS-Access and VB.net in a database

推荐答案

我认为您不需要代码:也一样，因为我不会为您做功课.
它确实并不复杂或困难:

1)在一个表中创建一个列，该表是一个OleObject字段.
2)使用OpenFileDialog类找到文件.
3)使用File.ReadAllBytes方法读取文件.
4)使用OleDbCommand上的参数化查询将行插入数据库.
要读取它，请从数据库读取它(再次使用OleDbCommand，这次是将其读取到OleDbReader中)，然后使用File.WriteAllBytes方法保存字节.
如果您不了解其中任何一项，请尝试使用Google不了解的内容-如果您自己进行了解，将会学到很多东西.

I don''t think you need the code: which is just as well, since I''m not going to do your homework for you.
It really isn''t complicated or difficult:

1) Create a column in a table which is an OleObject field.
2) Locate the file using the OpenFileDialog class.
3) Read the file using the File.ReadAllBytes method.
4) Insert the row to the database using a Parametrized query on a OleDbCommand.

To read it out, read it from the db (again using an OleDbCommand, this time into a OleDbReader) and save the bytes using the File.WriteAllBytes method.

If you don''t understand any of this, try Googling the bit you don''t understand - you will learn a lot better if you do it yourself.

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