[英]Cannot implicitly convert type 'byte[]' to 'byte?[]' in C#
My given code has an error of type conversion:我给定的代码有类型转换错误:
byte?[] AibAttachment = null;
MemoryStream target = new MemoryStream();
file.InputStream.CopyTo(target);
AibAttachment = target.ToArray();
In above code AibAttachment = target.ToArray();在上面的代码中 AibAttachment = target.ToArray(); this line is throwing an error like "Cannot implicitly convert 'byte[]' to 'byte?[]'"这一行抛出了一个错误,比如“不能隐式地将‘字节[]’转换为‘字节?[]’”
Please help me on this.请帮我解决这个问题。
也许你可以做这样的事情:
AibAttachment = Array.ConvertAll(target.ToArray(), i => (byte?)i);
Another answer with Linq: Linq的另一个答案:
byte[] original = null; // something
byte?[] AibAttachment = original.Select(a => (byte?) a).ToArray();
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