Hi

I am not sure how I use file.openRead() or if it is even what I need.

I have a file called test.mml(.mml is from a differernt program called webeq). I want to read the information out. When I use openRead() will it just read it as a plan text document or what?

So can someone show me an example on how to use file.openRead();?

Thanks

As you can see from this example:
http://msdn2.microsoft.com/en-us/library/system.io.fileinfo.openread(VS.71).aspx

OpenRead opens your file as readonly and, from there, you can read the file stream a byte at a time. So if you have a text file you are opening, yes you will see the text output, a binary file on the other hand will be the string representation of the given byte based upon the example found at that link.

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As Doug says, File.OpenRead returns a stream, from which you can rea the contents of the file a byte at a time.

Other alternatives are File.OpenText which returns a StreamReader, useful for reading the file if it contains text (and not binary data).

Or you can simply use File.ReadAllText or File.ReadAllLines which simply return the contents of the file as a string (or array of strings).

If however the file is an Xml file then you might be more interested in just using the XmlDocument.Load method to load it straight into an XmlDocument object.

/- Sam Judson : Wrox Technical Editor -/

Thanks!

I am using "File.OpenRead(path)" too,but i have a problem. when i running this project that using "File.OpenRead", i cant copy override diffrence file to this file that open? Would u like to help me?
Thanks a lot!

I'm sorry I don't understand the question. Perhaps it might be better if you showed us a section of your code and told us the exact Exception you are getting.

/- Sam Judson : Wrox Technical Editor -/

Thank for reply!

Here is module:

    public DB(string filename, String Time)
        {
            if (!File.Exists(filename))
            {
                Flag = true;
                return;
            }

            stream = File.OpenRead(filename);
            Time = File.GetLastWriteTime(filename).ToString();

            if (Time.Equals(time))
            {
                Flag = true;
                return;
            }
            csdl.ConnectToSQL();
        }
filename will updated real time, and i will read this file and insert into my database. But i have problem. When i run this program, it will block this file,i cant update real time. :(

:D Thanks!
I found bug in my project. i only replace posion statements!

Thanks a lot!;)