Bug 120503 Cascading Parameter can not drop into layout
Details: Cascading Parameter can not drop into layout Step: 1.Open a report design and Create a Sample Data Source and data set by "select * from CLASSICMODELS.CUSTOMERS" 2.New a cascading parameter and create CUSTOMERSNUMBER and CUSTOMERSNAME in parameter named number and name. Press OK 3.Drop parameter name into layout. Actual results: The parameter in Cascading Parameter Group can not drop to layout
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/ide/wizards/NewReportWizard.java
},
						IResource.DEPTH_INFINITE,
						true );
				if ( tmpList.size( ) > 0 )
				{
					return false;
				}
			}
			catch ( CoreException e )
			{
				ExceptionHandler.handle( e );
			}
		}
		return true;
	}
	
    /**
     * Creates a folder resource handle for the folder with the given workspace path.
     * This method does not create the folder resource; this is the responsibility
     * of <code>createFolder</code>.
     *
     * @param folderPath the path of the folder resource to create a handle for
     * @return the new folder resource handle
     */
    protected IFolder createFolderHandle( IPath folderPath )
	{
		IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace( )
				.getRoot( );
		return workspaceRoot.getFolder( folderPath );
	}