Return Value
true - if the stream supports seeking; false - if the stream is closed or if the stream was constructed from an operating system handle such as a pipe or output to the console.
Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5