Bug 156166 Error occour when previewing attached report in web viewer.
Decription:Error occour when previewing attached report in web viewer. Steps to reproduce: 1.run attached reports in web viewer. Expeceted results: preview properly Actual results: Error occour when previewing the reports in web viewer while it works properly in html and PDF
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/util/ExprDataReader1.java
public int getRowId( )
	{
		return this.getRowIndex( );
	}
	/*
	 * @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#getRowIndex()
	 */
	public int getRowIndex( )
	{
		if ( this.currRowIndex >= this.rowCount )
			return this.rowCount;
		
		return this.currRowIndex;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#next()
	 */
	public boolean next( ) throws DataException
	{
		if( this.currRowIndex < this.rowCount - 1)
		{
			this.currRowIndex++;
			return true;
		}
		else
			return false;
	}
	
	/*