Option Strict On does not allow narrowing in implicit type conversions between extension method '<extensionmethodname>' defined in '<modulename>' and delegate '<delegatename>'
With Option Strict on, you cannot have a narrowing conversion from the data type of a parameter in a delegate to the corresponding parameter of an extension method assigned to a variable of that delegate type. The data type of the delegate parameter must widen to the data type of the extension method.
Error ID: BC36709
To correct this error
- Change the data type of the parameter in the delegate or the extension method so that the required widening relationship exists.
See Also
Concepts
Extension Methods (Visual Basic)
Widening and Narrowing Conversions
Delegates and the AddressOf Operator