StreamReader default and minimum buffer size

Question

Hello

StreamReader(Stream, Encoding, detectEncodingFromByteOrderMarks, bufferSize)

Anyone knows in VB.net under .net framework 4.0 full for WinForms, what's the default and minimum buffer size (in integer) of the above StreamReader Constructor?

Thanks for advise.

Answer 1

It looks like min is 128 and default is 4096, see

https://referencesource.microsoft.com/#mscorlib/system/io/streamreader.cs,b5fe1efcec14de32

Answer 2

Hi @StewartBW ,

In VB.NET under .NET Framework 4.0 for WinForms, the StreamReader constructor has a default buffer size of 1,024 bytes (which is 1 KB).

The minimum buffer size you can specify for the StreamReader constructor is 128 bytes.

Best Regards.

Jiachen Li

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