Tag: C# Errors

C# Compiler Warning – CS8509 the switch expression does not handle al

In this blog post, you’ll learn more about the C# Compiler Warning – CS8509 and the related message description C# Compiler Warning Code CS8509 C# Compiler Description for the Code :CS8509 The switch expression does not handle all possible values of its input type (it is not exhaustive). For example, the pattern ‘{0}’ is not covered.