Bug 141961 All default column binding names for data are the same
Steps to reproduce: 1.Add a data. In the pops up window, add a column binding, "[result_set_col_name]" is given as the default column binding name 2.Add another column binding Expected result: Another different column binding name is given Actual result: The same column binding name is given An exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:2.1.0.N20060516-1213 Error Code:Error.PropertyValueException.VALUE_EXISTS Error Message:The value "[result_set_col_name]" already exists.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
}
				return ""; 
			}
			ComputedColumnHandle handle = ( (ComputedColumnHandle) element );
			String text = null;
			switch ( columnIndex )
			{
				case 1 :
					text = handle.getName( );
					break;
				case 2 :
					text = ChoiceSetFactory.getDisplayNameFromChoiceSet( handle.getDataType( ),
							dataTypeChoiceSet );
					break;
				case 3 :
					text = handle.getExpression( );
					break;
				case 4 :
					String value = handle.getAggregrateOn( );
					if ( value == null )
						text = NONE;
					else
						text = value;
					break;
			}
			if ( text == null )
			{
				text = ""; 
			}
			return text;