Bug 142430 Available data set should be invisible for dynamic image
Steps to reproduce: 1.New a sample data source and data set with table "PRODUCTLINES" 2.Add a dynamic image, binding with data set 3.Click "Expression Builder" Expected result: Available data set is not listed in Category to avoid user choose it Actual result: Available data set is listed in Category but we didn't support such expression like dataSetRow["image"]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ImageBuilder.java
swtichToExprType( );
				break;
			case FILE_TYPE :
				swtichToResourceType( );
				break;
		}
		inputArea.layout( );
	}
	/**
	 * Switch to select file in BIRT resource folder.
	 */
	private void swtichToResourceType( )
	{
		Label title = new Label( inputArea, SWT.NONE );
		uriEditor = new Text( inputArea, SWT.SINGLE
				| SWT.BORDER
				| SWT.READ_ONLY );
		uriEditor.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		uriEditor.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
				updateButtons( );
			}
		} );
		Composite innerComp = new Composite( inputArea, SWT.NONE );
		innerComp.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
		innerComp.setLayout( new GridLayout( 2, false ) );
		title.setText( DLG_ENTER_RESOURCE_FILE_LABEL );
		
		Button inputButton = new Button( innerComp, SWT.PUSH );