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
private TableViewer bindingTable;
	private ExpressionCellEditor expressionCellEditor;
	private String selectedColumnName = null;
	private IStructuredContentProvider contentProvider = new IStructuredContentProvider( ) {
		public void dispose( )
		{
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )
		{
		}
		public Object[] getElements( Object inputElement )
		{
			List elementsList = getBindingList( (DesignElementHandle) inputElement );
			elementsList.add( dummyChoice );
			return elementsList.toArray( );
		}
	};
	private ITableLabelProvider labelProvider = new ITableLabelProvider( ) {
		public Image getColumnImage( Object element, int columnIndex )
		{
			return null;
		}
		public String getColumnText( Object element, int columnIndex )
		{
			if ( element == dummyChoice )
			{
				if ( columnIndex == 1 )
				{
					return INPUT_PROPMT;