Bug 116377 container's data set should be list in dynamic image expression builder
description: container's data set should be list in dynamic image expression builder steps to reproduce: 1. drag an image to one cell of table 2. choose dynamic image 3. click on expression builder.... actual result: no data set list in the expression builder expected result: container's data set should be list in dynamic image expression builder
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/ReportTemplateTransferDropTargetListener.java
transName = InsertInLayoutAction.DISPLAY_TEXT;
			Object objectType = getFactory( template ).getObjectType( );
			if ( objectType instanceof DataSetHandle )
			{
				preHandle = new DataSetToolExtends( );
			}
			else if ( objectType instanceof DataSetItemModel )
			{
				preHandle = new DataSetColumnToolExtends( );
			}
			else if ( objectType instanceof ScalarParameterHandle )
			{
				preHandle = new ParameterToolExtends( );
			}
		}
		else if ( handleValidateLibrary( template ) )
		{
			preHandle = new LibraryElementsToolHandleExtends( (DesignElementHandle) getSingleTransferData( template ) );
		}
		if ( preHandle != null )
		{
			SessionHandleAdapter.getInstance( )
					.getReportDesignHandle( )
					.getCommandStack( )
					.startTrans( transName );
			preHandle.setRequest( this.getCreateRequest( ) );
			preHandle.setTargetEditPart( getTargetEditPart( ) );
			Command command = this.getCommand( );
			if ( command != null && command.canExecute( ) )
			{