Visit Stream I/O to know more about Stream
class heirarchy.
Use the StreamReader
class to read a physical file in C#. The following example shows how to read a file using StreamReader
.
//Create an object of FileInfo for specified path
FileInfo fi = new FileInfo(@"D:\DummyFile.txt");
//Open a file for Read\Write
FileStream fs = fi.Open(FileMode.OpenOrCreate, FileAccess.Read , FileShare.Read);
//Create an object of StreamReader by passing FileStream object on which it needs to operates on
StreamReader sr = new StreamReader(fs);
//Use the ReadToEnd method to read all the content from file
string fileContent = sr.ReadToEnd();
//Close the StreamReader object after operation
sr.Close();
fs.Close();
Notice that fi.Open()
has three parameters: the first param is FileMode, used for creating a new file and opening it; the second parameter, FileAccess, is used to indicate a Read operation;
and the third parameter is used to share the file with other users for reading purpose, while the file is open.
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