What is the difference between all these classes such as StreamReader, BufferedStream, FileStream, MemoryStream?

foreman

Hi there,

Hello everybody. I am a newbie to dot net framework class lib. I
am confused about those classes such as all of the stream classes and
those XXXReader XXXWriter. In fact, I have tried the StreamReader(wh ich
can read in big5 encoding text files well) and besides, I have tried
the BufferedStream to do the same thing. It does work fine except that
It can't interpret the Chinese big5 words well(which becomes messy code
around). But aside from those Chinese words, it still can print out the
same output as the StreamReader class does. My question is: Why are
there so many stream classes and xxxreader and xxxwriter classes with
the same functionality(j ust a little bit difference in between).
Hopefully I will receive your responses very soon.

best regards,

horngsh.

Feb 19 '06 #1

Subscribe Reply

4928

Jon Skeet [C# MVP]

foreman <ho*****@gmail. com> wrote:

Hello everybody. I am a newbie to dot net framework class lib. I
am confused about those classes such as all of the stream classes and
those XXXReader XXXWriter. In fact, I have tried the StreamReader(wh ich
can read in big5 encoding text files well) and besides, I have tried
the BufferedStream to do the same thing. It does work fine except that
It can't interpret the Chinese big5 words well(which becomes messy code
around). But aside from those Chinese words, it still can print out the
same output as the StreamReader class does. My question is: Why are
there so many stream classes and xxxreader and xxxwriter classes with
the same functionality(j ust a little bit difference in between).
Hopefully I will receive your responses very soon.

Plain Stream classes deal with binary data. Readers and Writers deal
with character data. The reason there are so many different classes is
because they deal with different data sources/destinations.

For instance, MemoryStream holds all of its data in memory, whereas
FileStream deals with file-based data. Likewise StringReader creates a
reader from an existing string, StreamReader creates a reader from a
stream, etc.

What problem were you having with Big5 though?

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

Feb 19 '06 #2

Similar topics

2934

Getting path from a StreamReader

by: waolly | last post by:

I have a function which gets passed a streamreader object as an argument (I know this might sound a little weird, but it's to avoid code repetition). My problem is this - given a streamreader object is it possible to determine the file path the streamreader is referencing?

.NET Framework

6215

BufferedStream class - asynchronous read is blocking ?

by: Niels Johansen | last post by:

Hello, When using the asynchronous read method in the BufferedStream class, , it seems to me that it blocks like the normal synchronous read method. Why is it so? Why does the BufferedStream.BeginRead() not behave similar to the NetworkStream.BeginRead() ?? The following short program illustrates my problem.: using System;

C# / C Sharp

8745

why does StreamReader get stuck

by: Astronomically Confused | last post by:

using System; using System.Collections; using System.IO; using System.Net; using System.Net.Sockets; using System.Threading; class HttpProcessor { private Socket s;

C# / C Sharp

1162

What is all about those same classes in System.IO namespace?

by: foreman | last post by:

.NET Framework

4545

Trouble opening a file using BufferedStream

by: curt.bathras | last post by:

I am trying to open and read a file using the following: BufferedStream stream = new BufferedStream(File.OpenRead(aFilename)); If the file specified by aFilename is being used by another application, an IOException is thrown with the message: "The process cannot access the file because it is being used by another process." I figured since I opened the file for read only using File.OpenRead, I would be fine... but no such luck.

C# / C Sharp

3111

FileStream & StreamReader?

by: Arpan | last post by:

A file can be read using only the StreamReader object like this: Dim sReader As StreamReader sReader = New StreamReader(Server.MapPath("File1.txt")) While(sReader.Peek -1) Response.Write(sReader.ReadLine) End While as well as using the FileStream object along with the StreamReader object like this:

ASP.NET

11634

Checking to se if a file stream opened and using a streamreader

by: AMP | last post by:

Hello, I am trying to see if a FileStream Opened using an"if" clause: FileStream infile = new FileStream("c:\\blink2.txt", FileMode.Open, FileAccess.Read, FileShare.Read); if (infile==0)..... but that doesnt work (they dont compare) ALSO, FileStream(......) is a constructor, but behaves like a Method. I'm a

C# / C Sharp

11339

what does StructLayoutAttribute.Pack do!??

by: giddy | last post by:

hi , I' know what the StructLayoutAttribute does. I've seen it being used. But what does the Pack field do!? This is what MSDN says: Controls the alignment of data fields of a class or structure in memory. This field indicates the packing size that should be used when the LayoutKind.Sequential value is specified. The value of Pack must be 0,

C# / C Sharp

3724

TextReader and StreamReader

by: Tony Johansson | last post by:

Hello! I just wonder in this specific case is it any advantage to use a TextReader a reference to a StreamReader ? Try { TextReader tr = new StreamReader(locationTextBox.Text); Try {

C# / C Sharp

8917

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

General

9426

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

9281

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

8148

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...

Career Advice

6022

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

4525

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

4795

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

3238

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

2680

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP