The Best way to handle null in C# - Use Null Coalescing Operator. You have seen some samples where I have used ?? operator, that is nothing but a "Null Coalescing Operator"
Null Coalescing Operator or ?? Operator in C# is supported in Visual Studio 2005, 2008, and 2010.
The Null Coalescing Operator or ?? operator returns the left-hand operand if it is not null, or else it returns the right operand.
strData = rsDB("FieldName").ToString() ?? "No Data";
strData will get value "No Data" in case of rsDB("FieldName") is null.
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