Contains Method (Devices)

using Leadtools; 
using Leadtools.MediaStreaming; 
 
 
 
public Server _server = null; 
public bool _result = false; 
 
public void IndexContainsExample() 
{ 
   try 
   { 
      // create an instance of the server object 
      _server = new Leadtools.MediaStreaming.Server(); 
 
      // retrieve a copy of the Live Streams 
      LiveStreams Streams = _server.GetLiveStreams(); 
 
      // create live stream just to demonstrate using Devices  IndexOf and Contains 
      LiveStream stream = Streams.CreateLiveStream(); 
 
      //Get the Video Devices  
      Devices Devices = stream.VideoDevices; 
 
      // get the Device object of the name "@device:sw:{083863F1-70DE-11D0-BD40-00A0C911CE86}\\{E2B7DE48-38C5-11D5-91F6-00104BDB8FF9}" 
      // this is equal to: 
      // Device dev = Devices["@device:sw:{083863F1-70DE-11D0-BD40-00A0C911CE86}\\{E2B7DE48-38C5-11D5-91F6-00104BDB8FF9}"]; 
      int nIndex = Devices.IndexOf("@device:sw:{083863F1-70DE-11D0-BD40-00A0C911CE86}\\{E2B7DE48-38C5-11D5-91F6-00104BDB8FF9}"); 
      Device dev = null; 
 
      if (nIndex > -1) 
         // access the Device via the collection indexer 
         dev = Devices[nIndex]; 
 
      // check whether the collection contains this item 
      // (it should we just got it with IndexOf above) 
      if (Devices.Contains(dev)) 
      { 
         // set the result to what we expect 
         _result = true; 
      } 
      else 
      { 
         _result = false; 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}