C# save list to binary file

Question

i have a button in my form that is supposed to take a list and save it to binary file on click. i compile and run the program enter the valued in the text box and click the save button. i look in the project directory and there is no new file. did i code it wrong or miss something?

private void button1_Click(object sender, EventArgs e)
{
    List<ore> oreData = new List<ore>();
    oreData.Add(b1);
    oreData.Add(b2);

    FileStream fs = new FileStream("ore.dat", FileMode.Create);
    BinaryFormatter bf = new BinaryFormatter();
    bf.Serialize(fs, oreData);
    fs.Close();
}

Did you look under your bin directory (Debug or Release, depending on which build you're running)? — Jonathan Wood
– Jonathan Wood, Commented Jun 26, 2011 at 23:33
OMG i cant believe it was that simple.... well now on to getting it to read that file :) thank you very much — doc
– doc, Commented Jun 26, 2011 at 23:35
Also, you may want to append Application.StartupPath as the prefix for file names. — Evan Mulawski
– Evan Mulawski, Commented Jun 26, 2011 at 23:40
Aside: Personally, I try to discourage people from using BinaryFormatter as a persistence format. It has some jagged edges that can really hurt you as you evolve your application. There are binary serializers that are far more suitable, IMO. — Marc Gravell
– Marc Gravell, Commented Jun 27, 2011 at 5:37

Berkay Turancı · Accepted Answer · 2013-01-09 12:41:10Z

2

Your "Ore" class must be Serializable

[Serializable] Class Ore
{
 . 
 .
 .
}

edited Jan 9, 2013 at 12:41

Berkay Turancı

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answered Jan 9, 2013 at 12:18

Arash Gh

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1 Comment

Ken Gordon Over a year ago

Would the Ore class have the oreData as one of its elements?

Ed Swangren · Accepted Answer · 2011-06-26 23:34:23Z

0

If you're on Windows Vista or later and you are not explicitly launching your program with admin privileges then I bet it is being written to a shadow directory under the covers as you are not allowed to write to anything in Program Files. Here is some more info.

answered Jun 26, 2011 at 23:34

Ed Swangren

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