Disconnect Method

Visual Basic
C#

'Declaration
 
Public Sub Disconnect()

'Usage
 
Dim instance As EntityManager
 
instance.Disconnect()

public void Disconnect()

Disconnect marks the connection to the EntityServer as closed. Once disconnected, all further queries will be fulfilled using only cached entities, and any SaveChanges call will fail. Note that a "null" entity is returned for any requested object not found in cache.

Disconnect does not explicitly close data source connections.

C#

private bool Initialize() {
      string runTimeEnv;
#if TEST
      runTimeEnv = "Test";
#else
      runTimeEnv = "Prod";
#endif

      // Initialize an EntityManager for the given data source extension, and set up an error handler.
      IdeaBladeTest1Manager mgr = new IdeaBladeTest1Manager(false, runTimeEnv);
      mgr.EntityServerError += EntityServerErrorHandler;

      // Explicitly connect to the BOS now.
      // Note that no data source connection is made until entities are accessed.
      try {
        mgr.Connect();
      } catch (EntityServerException ese) {
        MessageBox.Show(ese.Message, "EntityServerException");
      } catch (Exception e) {
        MessageBox.Show(e.Message, "Exception");
      }
      return mgr.IsConnected;
    }
    private void EntityServerErrorHandler(object pSender, EntityServerErrorEventArgs e) {
      // Always a good idea to log all exception info.
      Exception ex = e.Exception;
      while (ex != null) {
        TraceFns.WriteLine(ex.ToString());
        ex = ex.InnerException;
      }
      MessageBox.Show("Trying to handle error");
      // Leave e.Handled = false if the Error should be thrown back to the calling code
      e.Handled = true;         // exception will not be thrown
    }

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

EntityManager Class
EntityManager Members
Connect Method