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Tuesday, October 12, 2010

?? operator

string NumberIs = (x==1)?"One":"Not Known";

Above code checks if X is queal to One then return "One" to NumberIs variable else return "Not Known"

There is another operator ?? which specifically checks for null

DataRow dr = myRow ?? DataRow.EmptyRow

This is same as:
If (myRow == null)
dr = myRow
dr = Datarow.EmptyRow

?? checks for left side is null or not. If it is null then it returns right part.

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