如何从byte []创建FileStreame? [英] How to Create FileStreame from byte[]?

问题描述

我有一个这样的班级:

class person
{
    public string Name{get;set;}
    public byte[] PersonImage{get;set;}
}

当我从数据库中加载Person时，我想在Image控件中显示PersonImage，所以我想从我的byte []中创建BitmapImage:

When I Load my Person From DataBase I want to show PersonImage in a Image control, so I want to create BitmapImage from my byte[]:

var bitmapImage = new BitmapImage();

bitmapImage.BeginInit();
var filestream = new MemoryStream(PersonImage);
bitmapImage.StreamSource = filestream;

bitmapImage.EndInit();// I have Exception in this line 

我的例外是:

未找到适合完成此操作的成像组件.

No imaging component suitable to complete this operation was found.

-有礼 我的内部异常是:

--edite my Inner Exception is :

内部异常:HRESULT:0 * 88982F50的异常

Inner Exception:Exception from HRESULT:0*88982F50

推荐答案

假定PersonImage实际上是表示图像尝试的有效byte[]

assuming PersonImage is really a valid byte[] representing an image try

var bitmapImage = new BitmapImage();

bitmapImage.BeginInit();
var somestream = new MemoryStream(PersonImage);
somestream.Position = 0; // "rewind" stream to start...
bitmapImage.StreamSource = somestream;

bitmapImage.EndInit();

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