Conditional

Conditional Formatting is has very powerful functionality, and it's one of the diamonds of this project. Conditional Formatting will kick in on any placeholder that contains a "|" (pipe character) after the ":".

Syntax

The behavior of Conditional Formatting varies depending on the data type of the placeholder.

Data type	Syntax	Example
Number (Integer, Double, etc...)	"{0:one|default}"	"{0} {0:item|items}"
	"{0:zero|one|default}"	"{0:no items|one item|many items}"
	"{0:negative|zero|one|default}"	"{0:negative items|no items|one item|many items}"
boolean	"{0:true|false}"	"Enabled? {0:Yes|No}"
string	"{0:default|null or empty}"	"Text: {0:{0}|No text to display}"
DateTime	"{0:before|after}" (as compared to Date.Now)	"My birthday {0:was on|will be on} {0:MMMM d}"
TimeSpan	"{0:negative|positive}"	"My birthday {0:was {0} ago|will be in {0} from now}"
	"{0:negative|zero|positive}"	"My birthday {0:was {0} ago|is today!|will be in {0} from now}"
Object	"{0:default|nothing}"	"Property: {0:{0}|(Nothing)}"

Complex conditions (for numbers)

Each parameter is separated by "|". The comparison is followed by a "?" and then the text. The last (default) entry does not contain a comparison nor a "?". Valid comparisons: >= > = < <= !=.

Comparisons can be combined using "&" for AND or "/" for OR.

Example:

var addrList = new[] { new { Name = "Jim", Age = 32, Address = new { City = "New York", State = "NY" } } };
var result = Smart.Format("{Age:cond:>=55?Senior Citizen|>=30?Adult|>=18?Young Adult|>12?Teenager|>2?Child|Baby}", addrList);
// result: Adult