| Author: Syed Shakeer Hussain 20 Jan 2009 | Member Level: Diamond | Rating:  Points: 6 |
Hi
This program just demonstrate the use of FileStream & StreamReader. The program take 1 parameter from the user i.e. the file to read.
using System;
using System.IO;
class FileRead
{
string filereadbuf; // buffer to store the content of file
public void ReadFile(string FileName, int FileSize)
{
char[] buf = new char[FileSize]; // lets define an array of type char field (i.e. variable) buf
// for more help please see .net sdk
StreamReader sr = new StreamReader(new FileStream(FileName, FileMode.Open, FileAccess.Read));
int retval = sr.ReadBlock(buf, 0, FileSize); // no. of bytes read
Console.Write ("Total Bytes Read = " + retval + "\n");
filereadbuf = new string(buf); // store it in our field
Console.WriteLine (filereadbuf); // lets print on screen
sr.Close();
}
}
class TestFileRead
{
public static void Main(string[] args)
{
String[] cmdline = Environment.GetCommandLineArgs(); // Get the command line parameter
Console.WriteLine("File Reader Using Stream Reader & File Stream \n");
if (cmdline.Length < 2) // If no parameter is given will show user the usage
{
Console.WriteLine("Usage: " + cmdline[0] + " <input file> ");
return;
}
// Using Directory Class & using a Method GetFiles we get file list from the current directory
// return value is array of files please see .net sdk documentation for more help.
File[] fe = (new Directory(".")).GetFiles(cmdline[1]);
if (fe.Length == 0)
{
Console.WriteLine(cmdline[1] + ": file not found"); // if not found display a message to user
return;
}
FileRead fr = new FileRead();
try
{
fr.ReadFile(cmdline[1], (int)fe[0].Length); // sends 2 parameter filename & length
}
catch(IOException e)
{
Console.WriteLine("I/O error occured" + e);
return ;
}
} // Close brace of Main
} // close brace of TestFileRead
Thanks & Regards!
Syed Shakeer Hussain
|
| Author: Gitolekha Ray 20 Jan 2009 | Member Level: Gold | Rating: Points: 4 |
Sorry Syed, you code will not work in this case,I had tried using it already. The problem will occur as I have the uri of the filename stored in the document library, and StreamReader does not accept uri's, it gives an error "URI formats are not supported".
However, I have found out the solution myself.
SPSite ospSite = SPContext.Current.Site;
SPWeb ospWeb = ospSite.OpenWeb();
/*docPath returns the url of the file as sharepoint url/document library/filename*/
string docPath = Request.QueryString["Path"];
SPFile tempFile = ospWeb.GetFile(docPath);
StreamReader reader = new StreamReader(tempFile.OpenBinaryStream());
/*txtUpload is the textbox control where we insert the value of the text file*/
txtUploadText.Text = reader.ReadToEnd();
reader.Close();
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