Bug 150899 Cannot bind data values to chart series, which causes chart preview fail.
How to reproduce it? 1. Create a new chart, bind it with valid data set. 2. Assign the valid data values to category series and value series. Current result: 1. There is no chart live preview in chart builder. It still uses the default sample data. 2. Preview, dataset invalid exception is thrown out. Investigation: It is perhaps caused by ResultSetWrapper.java. There is no initializeMeta( ) in the Constructor.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/internal/datafeed/ResultSetWrapper.java
}
						else if ( obj instanceof Date )
						{
							dBaseValue = new CDateTime( (Date) obj );
						}
						else
						{
							dBaseValue = new CDateTime( );
						}
						double diff = CDateTime.computeDifference( dBaseValue,
								baseReference,
								cunit,
								true );
						iGroupIndex = (int) Math.floor( Math.abs( diff
								/ iGroupingInterval ) );
					}
				}
				else
				{
					if ( iGroupingInterval == 0 )
					{
						iGroupIndex++;
					}
					else
					{
						
						CDateTime dBaseValue = new CDateTime( 0 );
						double diff = CDateTime.computeDifference( dBaseValue,
								baseReference,
								cunit,