void WeatherService_WeatherReporting(object sender, WeatherEventArgs e)
{
// 在应用回调前需要检查回调通道的状态。
if (((ICommunicationObject)_callback).State == CommunicationState.Opened)
try
{
_callback.WeatherReport(e.WeatherReport);
}
catch
{
UnSubscribe();
}
else
UnSubscribe();
}
void WeatherService_WeatherReporting(object sender, WeatherEventArgs e)
{
// Remember check the callback channel's status before using it.
if (((ICommunicationObject)_callback).State == CommunicationState.Opened)
{
try
{
_callback.WeatherReport(e.WeatherReport);
}
catch
{
UnSubscribe();
}
}
else
{
UnSubscribe();
}
}
void WeatherService_WeatherReporting(object sender, WeatherEventArgs e)
{
// 在应用回调前需要检查回调通道的状态。
if (((ICommunicationObject)_callback).State == CommunicationState.Opened)
{
try
{
_callback.WeatherReport(e.WeatherReport);
}
catch
{
UnSubscribe();
}
}
else
{
UnSubscribe();
}
}