DateTime If Shorthand

///////////////////////////////////////
//if datetime is null return min value
///////////////////////////////////////
var tradeDate = (r["Trade Date"]).ToString();
var settlementDate = (r["Stl Date"]).ToString();

if ((r["Stl Date"]) != null){
	tradeDate = Convert.ToDateTime(r["Trade Date"]).ToString("MM/dd/yyyy");
}
else tradeDate = DateTime.MinValue.ToString();

if ((r["Stl Date"]) != null){
	settlementDate  = Convert.ToDateTime(r["Stl Date"]).ToString("MM/dd/yyyy");
}
else settlementDate = DateTime.MinValue.ToString();

//////////////////////////////////////////////
//can be easily written like this instead
//////////////////////////////////////////////
var tradeDate = (r["Stl Date"]) != null ? Convert.ToDateTime(r["Trade Date"]).ToString("MM/dd/yyyy") : DateTime.MinValue.ToString();
var settlementDate = (r["Stl Date"]) != null ? Convert.ToDateTime(r["Stl Date"]).ToString("MM/dd/yyyy") : DateTime.MinValue.ToString();