通过 OpenFileDialog 浏览本地图片，然后将图片读取到文件流中，再将文件流转成 BitmapImage 就可以显示本地图片了。代码中ImageFromStream是一个Image控件。
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
OpenFileDialog dlg = new OpenFileDialog();dlg.Filter = "Image files|*.jpg|All files|*.*";dlg.FilterIndex = 1;dlg.Multiselect = false;bool? result = dlg.ShowDialog().Value;if (result == true){ FileStream fileStream = dlg.File.OpenRead(); BitmapImage image = new BitmapImage(); image.SetSource(fileStream); ImageFromStream.Source = image; fileStream.Close();} |
将Stream转成Byte数组
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
private byte[] StreamToBytes(Stream stream){ using (MemoryStream ms = new MemoryStream()) { byte[] buffer = new byte[8 * 1024]; int read = 0; while ((read = stream.Read(buffer, 0, buffer.Length)) > 0) { ms.Write(buffer, 0, read); } return ms.ToArray(); }} |