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C# - as
You can use the as operator to perform certain types of conversions between compatible reference types ornullable types.
The as operator is like a cast operation. However, if the conversion isn‘t possible,as returns null instead of raising an exception. Consider the following example:
expression as type
The code is equivalent to the following expression except that theexpression variable is evaluated only one time.
expression is type ? (type)expression : (type)nullNote that theas operator performs only reference conversions, nullable conversions, and boxing conversions. Theas operator can‘t perform other conversions, such as user-defined conversions, which should instead be performed by using cast expressions.
C# - as
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