OperationalStatus 列舉
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
指定網路介面的操作狀態。
public enum class OperationalStatusC#
public enum OperationalStatustype OperationalStatus = Public Enum OperationalStatus- 繼承
| 名稱 | 值 | Description |
|---|---|---|
| Dormant | 5 | 網路介面未處於傳輸資料封包的狀況，它正在等待外部事件。 |
| Down | 2 | 網路介面無法傳輸資料封包。 |
| LowerLayerDown | 7 | 網路介面無法傳輸資料封包，因為它是在一或多個其他介面上執行，而這些「低層」介面中至少有一個已經關閉。 |
| NotPresent | 6 | 網路介面由於缺少元件而無法傳輸資料封包，缺少的元件通常是硬體元件。 |
| Testing | 3 | 網路介面正在執行測試。 |
| Unknown | 4 | 網路介面狀態未知。 |
| Up | 1 | 網路介面已開啟，可以傳輸資料封包。 |
下列程式代碼範例會顯示本機計算機上所有介面的摘要。
void ShowInterfaceSummary()
{
array<NetworkInterface^>^interfaces = NetworkInterface::GetAllNetworkInterfaces();
System::Collections::IEnumerator^ myEnum5 = interfaces->GetEnumerator();
while ( myEnum5->MoveNext() )
{
NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum5->Current);
Console::WriteLine( "Name: {0}", adapter->Name );
Console::WriteLine( adapter->Description );
Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) );
Console::WriteLine( " Interface type .......................... : {0}",
adapter->NetworkInterfaceType );
Console::WriteLine( " Operational status ...................... : {0}", adapter->OperationalStatus );
String^ versions = "";
// Create a display string for the supported IP versions.
if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) )
{
versions = "IPv4";
}
if ( adapter->Supports( NetworkInterfaceComponent::IPv6 ) )
{
if ( versions->Length > 0 )
{
versions = String::Concat( versions, " " );
}
versions = String::Concat( versions, "IPv6" );
}
Console::WriteLine( " IP version .............................. : {0}", versions );
Console::WriteLine();
}
Console::WriteLine();
}
C#
public static void ShowInterfaceSummary()
{
NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface adapter in interfaces)
{
Console.WriteLine ("Name: {0}", adapter.Name);
Console.WriteLine(adapter.Description);
Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
Console.WriteLine(" Interface type .......................... : {0}", adapter.NetworkInterfaceType);
Console.WriteLine(" Operational status ...................... : {0}",
adapter.OperationalStatus);
string versions ="";
// Create a display string for the supported IP versions.
if (adapter.Supports(NetworkInterfaceComponent.IPv4))
{
versions = "IPv4";
}
if (adapter.Supports(NetworkInterfaceComponent.IPv6))
{
if (versions.Length > 0)
{
versions += " ";
}
versions += "IPv6";
}
Console.WriteLine(" IP version .............................. : {0}", versions);
Console.WriteLine();
}
Console.WriteLine();
}
這個列舉會定義 屬性的有效值 OperationalStatus 。
| 產品 | 版本 |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
