Reputation: 7633
I would like to check internet connectivity type in Windows Universal Application.
in order to provide an option for downloading large size content. And also sense the significant network availability changes.
Currently, I'm only able to check whether internet connected or not using GetIsNetworkAvailable
method of NetworkInterface
class.
NetworkInterface.GetIsNetworkAvailable();
Upvotes: 31
Views: 15094
Reputation: 1
NetworkInterface.GetIsNetworkAvailable();
only tells you if you are connected to a network - it doesn't tell you if you are connected to the internet as one of the answers kind of suggests (via it's heading).
The answer provided by dwb seems to be the best way to find out if you are connected to the internet or not.
Further, the CommunityToolkit for Windows has a helper method here which provides details on how they do it. They use a combination of checking if the profile is null but also check the ConnectivityLevel. You may want to change that logic as limited access may not constitute internet access (which is assumed in the helper).
Upvotes: 0
Reputation: 2624
To find if the user has any network connection whatsoever (including one without internet) I use
public bool ConnectedToNetwork()
{
return NetworkInformation.GetInternetConnectionProfile()?.NetworkAdapter != null;
}
Upvotes: 1
Reputation: 7633
To check whether any network connection is established or not use GetIsNetworkAvailable
method of NetworkInterface
class.
bool isNetworkConnected = NetworkInterface.GetIsNetworkAvailable();
GetIsNetworkAvailable() -
Summary: Indicates whether any network connection is available.
Returns:true
if a network connection is available; otherwise,false
.
To check whether internet connected via WWAN use IsWlanConnectionProfile
property of ConnectionProfile
class
ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile();
bool isWLANConnection = (InternetConnectionProfile == null)?false:InternetConnectionProfile.IsWlanConnectionProfile;
IsWlanConnectionProfile
Summary: Gets a value that indicates if connection profile is a WLAN (WiFi) connection. This determines whether or not WlanConnectionProfileDetails is null.
Returns: Indicates if the connection profile represents a WLAN (WiFi) connection.
To check whether internet connected via WWAN use IsWwanConnectionProfile
property ofConnectionProfile
class
ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile();
bool isWLANConnection = (InternetConnectionProfile == null)?false:InternetConnectionProfile.IsWwanConnectionProfile;
IsWwanConnectionProfile
Summary: Gets a value that indicates if connection profile is a WWAN (mobile) connection. This determines whether or not WwanConnectionProfileDetails is null.
Returns: Indicates if the connection profile represents a WWAN (mobile) connection.
Reference
Hippiehunter Answer
To check whether Internet reachable via a metered connection or not, use GetConnectionCost
method on NetworkInterface
class.
var connectionCost = NetworkInformation.GetInternetConnectionProfile().GetConnectionCost();
if (connectionCost.NetworkCostType == NetworkCostType.Unknown
|| connectionCost.NetworkCostType == NetworkCostType.Unrestricted)
{
//Connection cost is unknown/unrestricted
}
else
{
//Metered Network
}
Reference (More detailed answer here)
1. How to manage metered network cost constraints - MSDN
2. NetworkCostType Enum - MSDN
To sense the significant network availability changes, use eventNetworkStatusChanged
of NetworkInformation
class
// register for network status change notifications
networkStatusCallback = new NetworkStatusChangedEventHandler(OnNetworkStatusChange);
if (!registeredNetworkStatusNotif)
{
NetworkInformation.NetworkStatusChanged += networkStatusCallback;
registeredNetworkStatusNotif = true;
}
async void OnNetworkStatusChange(object sender)
{
// get the ConnectionProfile that is currently used to connect to the Internet
ConnectionProfile InternetConnectionProfile = NetworkInformation.GetInternetConnectionProfile();
if (InternetConnectionProfile == null)
{
await _cd.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Not connected to Internet\n", NotifyType.StatusMessage);
});
}
else
{
connectionProfileInfo = GetConnectionProfile(InternetConnectionProfile);
await _cd.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser(connectionProfileInfo, NotifyType.StatusMessage);
});
}
internetProfileInfo = "";
}
References
Check Internet Connectivity - developerinsider.co
How to manage network connection events and changes in availability - MSDN
How to retrieve network connection information- MSDN
Hope it helpful to someone.
Upvotes: 57
Reputation: 975
I use NetworkInformation.GetInternetConnectionProfile().IsWlanConnectionProfile
and IsWwanConnectionProfile
. If neither is true
, it should mean you're on Ethernet or something like that.
Keep in mind thatGetInternetConnectionProfile()
can return null and can falsely return that there is an active internet connection when the connection is active but DHCP has failed.
Upvotes: 6