如何在Winforms中使用C#在mysql中插入图像? [英] how to insert image in mysql using c# in winforms?

问题描述

我正在使用MySql网站上提供的这段代码.
http://dev.mysql.com/doc/refman/5.0/zh/connector-net-programming-blob.html

现在错误是''文件不能为空''

我附加了一个文件，即JPG文件

文件大小可以.文件名可以.但是会引发异常文件不能为空"

在高级Thnx:)

I am using this code which is available in MySql site.
http://dev.mysql.com/doc/refman/5.0/en/connector-net-programming-blob.html

now the error is '' File can''t be null ''

I attached a file i.e. JPG file

Filesize is ok..filename is ok..but it throws an exception ''File can''t be null''

Thnx in advanced :)

推荐答案

再次检查您提供的代码是否匹配.在没有确切看到您正在运行的代码片段的情况下，我们只能猜测您的问题是什么.最好的猜测是:您在复制代码时错过了某些内容，或者您​​没有正确使用它.

Double check your code matches that they gave. Without seeing exactly the code fragment you are running we can only guess what your problem is. And the best guess is: You missed something when you copied the code, or you aren''t using it correctly.

阅读以下内容:
http://support.microsoft.com/kb/309158 [ http://bytes.com/topic/net/answers/768002-blob-mysql- using-c [^ ]

http://www.velocityreviews.com/forums/t73483-save-blob-to-file-from-mysql-using-c.html [

Read the following :
http://support.microsoft.com/kb/309158[^]

http://bytes.com/topic/net/answers/768002-blob-mysql-using-c[^]

http://www.velocityreviews.com/forums/t73483-save-blob-to-file-from-mysql-using-c.html[^]

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