Bug 136402 Data binding feature - Expression builder bug
In the following 2 scenarios the expression builder does not behave as expected. 1) Invoked from data binding tab - Create a table report item, bind it to a dataset. - Go to the binding tab - Add a new data binding column - Invoke the expression builder to enter the expression. Current behavior - The expresssion builder does not show Available Datasets and Available Binding Columns Expected behaivor - The expression builder list the Available Datasets and Available Binding Columns 2) Invoke expression builder from Group dialog - Add a group to the above scenario - Go to binding tab on group dialog - Click on add to add a column binding - Invoke the expression builder Current behavior - Does not show Available Datasets and Available Binding Columns Expected behavior - Shows Available Datasets and Available Binding Columns
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/BindingExpressionProvider.java
{
	public static final String DATASETS = Messages.getString( "ExpressionProvider.Category.DataSets" ); 
	private DataSetHandle dataSetHandle = null;
	public BindingExpressionProvider( DesignElementHandle handle )
	{
		super( handle );
		if ( handle instanceof ReportItemHandle )
		{
			dataSetHandle = ( (ReportItemHandle) handle ).getDataSet( );
		}
	}
	protected List getCategoryList( )
	{
		List categoryList = super.getCategoryList( );
		if ( dataSetHandle != null )
		{
			categoryList.add( DATASETS );
		}
		return categoryList;
	}
	protected List getChildrenList( Object parent )
	{
		if ( DATASETS.equals( parent ) )
		{
			List dataSeList = new ArrayList( );
			dataSeList.add( dataSetHandle );