Bug 200133 Chart can not share the column binding from table item[00]
Description: Chart can not share the column binding from table item[00] Step: 1. New a datasource and dataset 2. New a table named table1 and binding the dataset 3. New a chart and binding the sharing result set on table1 Actual result: The data columns have been not share on the chart Exceptioon result: The data column binding will share on the chart
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/swt/interfaces/IDataServiceProvider.java
* @return meta data in form of string
	 * @throws ChartException
	 */
	public String[] getPreviewHeader( ) throws ChartException;
	/**
	 * Returns the preview data
	 * 
	 * @return data list which includes string array as an element
	 * @throws ChartException
	 */
	public List getPreviewData( ) throws ChartException;
	/**
	 * Sets the context object
	 */
	public void setContext( Object context );
	/**
	 * Binds dataset for chart, and updates related settings, such as column
	 * bindings, filters, parameters.
	 * 
	 * @param datasetName
	 *            Dataset name. Null means inheriting from container.
	 */
	public void setDataSet( String datasetName );
	/**
	 * Sets current used style by specified style name.
	 */
	public void setStyle( String styleName );
	/**
	 * Invokes specific dialogue. The return codes are window-specific, although
	 * two standard return codes are predefined: <code>OK</code> and