在 Core 2.1 中将 byte[] 转换为 Bitmap

问题描述

我有一个在 .Net 4.6.2 中运行良好的项目，它大量使用了将 byte[] 转换为 Bitmap.

I had a project working well in .Net 4.6.2, which makes heavy usage of converting byte[] to Bitmap.

public static Bitmap ByteArrayToImage(byte[] source)
    {
        TypeConverter tc = TypeDescriptor.GetConverter(typeof(Bitmap));
        return (Bitmap)tc.ConvertFrom(source);
    }

但是，我已经将项目升级到 .Net Core 2.1，但现在不再有效.我读过，有些人有问题，但正在努力寻找解决方案.

However, I have since upgraded projects to .Net Core 2.1 and this no longer works. I've read, and a few people have issues, but battling to find a fix.

TypeConverter 不能从 System.Byte[] 转换

2.1 有没有办法实现这种转换?看起来 https://github.com/SixLabors/ImageSharp 可能有用，但是当我搜索在 Nuget 中，我没有得到任何结果.

Is there a way in 2.1 to achieve this conversion?It looks like https://github.com/SixLabors/ImageSharp might work, but when I search for it in Nuget, I get no results.

推荐答案

您需要将 bytes 放入 MemoryStream

public static Bitmap ByteArrayToImage(byte[] source)
{
    using (var ms = new MemoryStream(source))
    {
        return new Bitmap(ms);
    }
}

上面的代码将使用Bitmap(Stream stream)构造函数.

The code above will use the Bitmap(Stream stream) constructor.

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