Enum error while doing check

I have an enum like this

 public enum ConnectionState : int
   {
      Unknown = 1,
      Connected = 2,
      Disconnected = 3,
   }

I need to display value if it is connected i did this check

if(ConnectionState.Connected)
{
S开发者_JS百科ubItems.Add(Data.value)
}

But i am getting an error "Cannot implicitly convert type 'ConnectionState' to 'bool'".kindly suggest me how to proceed with this

Should it not be something like

if(YourObject.ConnectionState == ConnectionState.Connected) 
{ 
    SubItems.Add(Data.value) 
} 

ConnectionState in this example is a type definition, you need to instantiate a ConnectionState object:

ConnectionState myState = new ConnectionState();

Then you can set your state:

myState = ConnectionState.Connected;

And check it with:

if(myState == ConnectionState.Connected)

Enums or enumerated data types ,as the name suggests are user defined datatypes.So they can not used directly in the condition statements.They can be compared within themselves.So you need to define your object and then compare its value with some other value in enum.