使用System.IO登录和注册

Question

Don't Know What's wrong but I can't Access even It created a directory.. This is my code

private void btnRegister_Click(object sender, EventArgs e)
{
    try
    {
        var sw = new System.IO.StreamWriter("E:Praisey\\" + txtAcc.Text + "\\Login.ID");
        sw.Write(txtAcc.Text + "\n" + txtZipCode.Text);
        sw.Close();
    }
    catch(System.IO.DirectoryNotFoundException ex)
    {
        System.IO.Directory.CreateDirectory("E:Praisey\\" + txtAcc.Text + "\\Login.ID");
        var sw = new System.IO.StreamWriter("E:Praisey\\" + txtAcc.Text + "\\Login.ID");
        sw.Write(txtAcc.Text + "\n" + txtZipCode.Text);
        sw.Close();
    }
}

it always getting error! The error is

UnauthorizedAccessException was unhandled

Access to the path 'E:\\Praisey\\48492995\\Login.ID' is denied.

Answer 1

This error occurs (had it yesterday too) when the Directory does not exist. You need to create it before starting your StreamWriter .

if (!Directory.Exists("E:Praisey\\" + txtAcc.Text))
    Directory.CreateDirectory("E:Praisey\\" + txtAcc.Text);

Answer 2

As I see from your catch block, "E:Praisey\\\\" + txtAcc.Text + "\\\\Login.ID" is actually a directory. You must also add the file name to the path.

var sw = new System.IO.StreamWriter("E:Praisey\\" + txtAcc.Text + "\\Login.ID\\filename.txt");