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/CascadingParametersDialog.java
{
					formatCategroy = DesignChoiceConstants.STRING_FORMAT_TYPE_UNFORMATTED;
				}
				formatPattern = selectedParameter.getPattern( );
			}
		}
		updateFormatField( );
	}
	private String getInputDisplayName( )
	{
		String displayName = null;
		if ( DesignChoiceConstants.PARAM_CONTROL_LIST_BOX.equals( selectedParameter.getControlType( ) ) )
		{
			if ( selectedParameter.isMustMatch( ) )
			{
				
				displayName = DISPLAY_NAME_CONTROL_LIST;
			}
			else
			{
				
				displayName = DISPLAY_NAME_CONTROL_COMBO;
			}
		}
		return displayName;
	}
	private IChoiceSet getFormatChoiceSet( String type )
	{
		IChoiceSet choiceSet = null;
		if ( DesignChoiceConstants.PARAM_TYPE_STRING.equals( type ) )