Bug 136966 When set an alias on a column, the column can not be used in the cascading parameter
Description: When set an alias on a column, the column can not be used in the cascading parameter Steps to reproduce: 1. new a datasource and a dataset 2. set an alias on a column 3. new a cascading parameter, set the column with an alias as the values column Actual result: the column can not be used in the cascading parameter
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
if ( COLUMN_NAME.equals( property ) )
				{
					if ( element == newParameter )
					{
						value = ""; 
					}
					else
					{
						value = parameter.getName( );
					}
				}
				else if ( COLUMN_VALUE.equals( property ) )
				{
					value = getColumnName( parameter.getValueExpr( ) );
				}
				else if ( COLUMN_DISPLAY_TEXT.equals( property ) )
				{
					value = getColumnName( parameter.getLabelExpr( ) );
				}
				if ( value == null )
				{
					value = ""; 
				}
				return value;
			}
			return ""; 
		}
		public void modify( Object element, String property, Object value )
		{
			Object actualElement = ( (TableItem) element ).getData( );