Bug 177439 Need an easy way to determine default value for a dynamic parameter
Currently, I have to bring up the data set editor, preview the results in the data set and make a mental note of the value to use for a report parameter that depends on a data set. It would be nice to have a drop down on the default value field, such as <Select value> which when selected queries the data set and presents me with a list to select from.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
choices = new String[4];
			}
		}
		else
		{
			choices = new String[2];
		}
		if ( controlTypeChooser.getItemCount( ) != choices.length )
		{
			String originalSelection = controlTypeChooser.getText( );
			if ( isStatic( ) )
			{
				if ( DesignChoiceConstants.PARAM_TYPE_BOOLEAN.equals( type ) )
				{
					choices[0] = CONTROL_TYPE_CHOICE_SET.findChoice( DesignChoiceConstants.PARAM_CONTROL_CHECK_BOX )
							.getDisplayName( );
					choices[1] = DISPLAY_NAME_CONTROL_COMBO;
				}
				else
				{
					choices[0] = CONTROL_TYPE_CHOICE_SET.findChoice( DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX )
							.getDisplayName( );
					
					choices[1] = DISPLAY_NAME_CONTROL_COMBO;
					choices[2] = DISPLAY_NAME_CONTROL_LIST;
				}
				
				
				choices[choices.length - 1] = CONTROL_TYPE_CHOICE_SET.findChoice( DesignChoiceConstants.PARAM_CONTROL_RADIO_BUTTON )
						.getDisplayName( );