Bug 153523 OK button in parameter dialog is enabled without default value in combo-box
Description: OK button in parameter dialog is enabled without default value in combo-box Steps to reproduce: 1. New a report parameter, combo-box. 2. Click New button, input abc as value, click OK 3. Set abc as default value and close Edit Parameter dialog. 4. New a data source and dataset 5. Edit the parameter, remove abc value and import values from dataset Expected result: OK button is disabled for there is no default value. Actual result: OK button is enabled.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
}
			}
		}
		return index;
	}
	private void refreshValueTable( )
	{
		if ( valueTable != null && !valueTable.getTable( ).isDisposed( ) )
		{
			valueTable.refresh( );
		}
	}
	private void refreshParameterProperties( )
	{
		if ( selectedParameter == null || selectedParameter == newParameter )
		{
			clearParamProperties( );
			setControlEnabled( false );
			return;
		}
		loading = true;
		setControlEnabled( true );
		paramNameEditor.setText( selectedParameter.getName( ) );
		if ( selectedParameter.getPromptText( ) == null )
		{
			promptText.setText( "" ); 
		}
		else
		{
			promptText.setText( selectedParameter.getPromptText( ) );