reading text file ... crashid during execute

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can u see any wrong here ?
i use unicode
and firstget file with dat File extension and change to txt

C#

if (textBox1.Text != "" && textBox2.Text!="" && textBox3.Text!="" && textBox15.Text!=""&& txtdate1.Text!="")
            {
                string Rline;
                string temp;
                string[] dtemp;
                DateTime InDate = DateTime.Now;
                // reading file 
                string dir = Directory.GetCurrentDirectory();
                string MyPath = System.IO.Path.Combine(dir, textBox3.Text.ToLower());
                StreamWriter filewrite = new StreamWriter(@MyPath + ".txt",true, Encoding.Unicode);
                // Read the file and display it line by line.
                if (!File.Exists(@op.FileName.ToString().Replace("dat", "txt"))) 
                    File.Copy(@op.FileName.ToString(), @op.FileName.ToString().Replace("dat", "txt"));
                StreamReader Readfile = new StreamReader(@op.FileName.ToString().Replace("dat", "txt"));
                dtemp = txtdate1.Text.Split('/');
                InDate = shamsi2Miladi.shamsi2miladi(Convert.ToInt32(dtemp[0]),Convert.ToInt32(dtemp[1]),Convert.ToInt32(dtemp[2]));
                MessageBox.Show(InDate.ToString());
                // Erorr Here Help Help
                while ((Rline = Readfile.ReadLine()) != null)
                    {
                        temp = Rline;
                        temp = temp.Substring(1, 5).Replace(" ", string.Empty);
                        MessageBox.Show(temp.Substring(6, 10));
                        if (Convert.ToInt32(temp) == Convert.ToInt32(textBox3.Text) && Convert.ToDateTime(temp.Substring(6, 10)) >= InDate)
                        {
                            filewrite.WriteLine(Rline);
                        }
                    }
                progressBar1.Value = 20;
                Readfile.Close();
                filewrite.Close();
                progressBar1.Value = 100;
                MessageBox.Show("گزارش به اتمام رسید ");

                textBox2.Text = "";
                textBox3.Text = "";
                
            }
            else
            {
                MessageBox.Show("لطفا فیلد های داده شده  تکمیل نمایید ");
            }

plz check this picture
http://uploadfa.net/uploads/13539564541.png[^]

it's my file
www.winmaildat.com/getfile.php?getfile=%2Ftnefhandlerp2UMOx%2Fwinmail.dat[^]

Posted 26-Nov-12 8:05am

farham_heidari

Updated 26-Nov-12 8:40am

v2

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Comments

Richard MacCutchan 26-Nov-12 14:09pm

What is the content of the file, are you sure that it is text?

farham_heidari 26-Nov-12 14:16pm

yes i get it from a device that record enter and exit of people that device out put .dat and i can see file content with notepad i am sure it's txt

Richard MacCutchan 26-Nov-12 14:20pm

The error suggests that there are some non-text characters in the file which have crashed the StreamReader. I suggest you look at the file with a hex editor to see exactly what the contents are.

farham_heidari 26-Nov-12 14:39pm

it's my file
www.winmaildat.com/getfile.php?getfile=%2Ftnefhandlerp2UMOx%2Fwinmail.dat

Richard MacCutchan 26-Nov-12 14:56pm

It works OK for me, I just read the file all the way through. It must be something else in your code that is going wrong. Try using your debugger to find exactly where the error is.

farham_heidari 26-Nov-12 15:22pm

it's ok i find my problem
tnk alot

Richard C Bishop 26-Nov-12 14:11pm

You are using the .txt file extension in your initial streamwriter. If your file has a file extension of .dat then it will not execute properly.

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farham_heidari · Accepted Answer · 2012-11-26T09:29:00

C#

if (Convert.ToInt32(temp) == Convert.ToInt32(textBox3.Text) && Convert.ToDateTime(temp.Substring(6, 10)) >= InDate

it was problem i changed temp and then want to pick substring i change it to

C#

if (Convert.ToInt32(temp) == Convert.ToInt32(textBox3.Text) && Convert.ToDateTime(Rline.Substring(6, 10)) >= InDate)