Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskSelectData.java
btnFilters.addSelectionListener( this );
		}
		btnParameters = new Button( composite, SWT.NONE );
		{
			btnParameters.setAlignment( SWT.CENTER );
			GridData gridData = new GridData( GridData.FILL_HORIZONTAL );
			btnParameters.setLayoutData( gridData );
			btnParameters.setText( Messages.getString( "TaskSelectData.Label.Parameters" ) ); 
			btnParameters.addSelectionListener( this );
		}
		btnBinding = new Button( composite, SWT.NONE );
		{
			btnBinding.setAlignment( SWT.CENTER );
			GridData gridData = new GridData( GridData.FILL_HORIZONTAL );
			btnBinding.setLayoutData( gridData );
			btnBinding.setText( Messages.getString( "TaskSelectData.Label.DataBinding" ) ); 
			btnBinding.addSelectionListener( this );
		}
	}
	protected void init( )
	{
		
		String currentDataSet = getDataServiceProvider( ).getBoundDataSet( );
		if ( currentDataSet != null )
		{
			cmbDataSet.setItems( getDataServiceProvider( ).getAllDataSets( ) );
			cmbDataSet.setText( ( currentDataSet == null ) ? BLANK_DATASET
					: currentDataSet );
			useReportDataSet( false );
			if ( currentDataSet != null )