Wp7: 调用摄像头拍照并上传图片(完整版)

private void SelectButton_Click(object sender, RoutedEventArgs e)
{
PhotoChooserTask task = new PhotoChooserTask();
task.Completed += task_Completed;
task.Show();
} private void task_Completed(object sender, PhotoResult e)
{ if (e.TaskResult != TaskResult.OK) return; const int BLOCK_SIZE = 4096;

Uri uri = new Uri("http://localhost:13235/WebClientUpLoadHandler.ashx", UriKind.Absolute);

WebClient wc = new WebClient();
wc.AllowReadStreamBuffering = true;
wc.AllowWriteStreamBuffering = true; // what to do when write stream is open  wc.OpenWriteCompleted += (s, args) =>
{ using (BinaryReader br = new BinaryReader(e.ChosenPhoto))
{ using (BinaryWriter bw = new BinaryWriter(args.Result))
{ long bCount = 0; long fileSize = e.ChosenPhoto.Length; byte[] bytes = new byte[BLOCK_SIZE]; do {
bytes = br.ReadBytes(BLOCK_SIZE);
bCount += bytes.Length;
bw.Write(bytes);
} while (bCount < fileSize);
}
}
}; // what to do when writing is complete  wc.WriteStreamClosed += (s, args) =>
{
MessageBox.Show("Send Complete");
}; // Write to the WebClient  wc.OpenWriteAsync(uri, "POST");
}

/// <summary> ///新建一个ashx类处理上传数据 /// </summary>  public class WebClientUpLoadHandler : IHttpHandler
{ public void ProcessRequest(HttpContext context)
{ //获取从Silverlight客户端传来的信息  int length = context.Request.ContentLength; byte[] bytes = context.Request.BinaryRead(length); string uploadFolder = System.AppDomain.CurrentDomain.BaseDirectory + "\\uploadvoice"; //目录不存在则新建 //if (!System.IO.Directory.Exists(uploadFolder)) //{ // System.IO.Directory.CreateDirectory(uploadFolder); //}  System.IO.FileMode fileMode = System.IO.FileMode.Create;  ////写入文件  try { using (System.IO.FileStream fs = new System.IO.FileStream(uploadFolder + "\\" + "name", fileMode, System.IO.FileAccess.Write))
{
fs.Write(bytes, 0, bytes.Length);
} context.Response.Write("服务器端成功");
} catch { context.Response.Write("写入失败"); }

} public bool IsReusable
{ get { return false;
}
}

}