很抱歉要问所有人,但我是一个老手Vb.net的家伙谁转移到c#.我有以下代码片段似乎在触发postAsync方法(在本例中)时激活.我只是不明白代码在做什么(如下): -
app.PostCompleted +=
(o, args) =>
{
if (args.Error == null)
{
MessageBox.Show("Picture posted to wall successfully.");
}
else
{
MessageBox.Show(args.Error.Message);
}
};
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如果有人能解释+ =(o,args)=>实际上是什么,我会非常感激....
提前谢谢了.蒂姆
谁能告诉我为什么我无法访问注册表项"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData"?
如果我查询GetSubKeysNames的"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer"它只返回一个值的存在"Secure"---->在哪里是所有其他子项?
谢谢.
我有一个类要求Stream从手机摄像头旋转图像.我遇到的问题是,当从隔离存储器加载图片时(即在用户之前保存图片之后),它被加载到BitmapSource中.
如果可能,我想将位图源"提取"回流中?有谁知道它是否使用Silverlight的WP7?
谢谢
我有以下代码,它在尝试抛出错误时给出了" 用户代码未处理的异常 ":
private static void _msgQ_RecieveCompleted(object sender, ReceiveCompletedEventArgs e)
{
try
{
//queue that have received a message
MessageQueue _mq = (MessageQueue)sender;
//get the message off the queue
Message _mqmsg = _mq.EndReceive(e.AsyncResult);
throw new Exception("This is a test exception by Tim");
//set the values back into a formatted struct
//now process your SQL....
Azure_SQL _azuresql = new Azure_SQL();
_azuresql.writeMessageToStorage((_TwitterStreamFeed)_mqmsg.Body);
//refresh queue just in case any changes occurred (optional)
_mq.Refresh();
//tell MessageQueue to receive next message when it arrives
_mq.BeginReceive(); …Run Code Online (Sandbox Code Playgroud)