How to retreive text file data from database to a textbox.?

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Actually i uploaded a text file to database and now i need to get that data into a textbox(multiline)

code that i have written for file upload
========================================

C#

protected void Button1_Click(object sender, EventArgs e)
    {
        if (FileUpload1.PostedFile == null || string.IsNullOrEmpty(FileUpload1.PostedFile.FileName) || FileUpload1.PostedFile.InputStream == null)
        {
            Label1.Text =
            "<br />Error - unable to upload file. Please try again.<br />";
        }
        else
        {
            string SQL = "INSERT INTO FileUpLoad values(@FileName, @DateTime, @MIME, @BinaryData)";
            SqlCommand cmd = new SqlCommand(SQL, con);
            cmd.Parameters.AddWithValue("@FileName", TextBox2.Text.Trim());
            cmd.Parameters.AddWithValue("@DateTime", DateTime.Now);
            cmd.Parameters.AddWithValue("@MIME", FileUpload1.PostedFile.ContentType);
            byte[] imageBytes = new byte[FileUpload1.PostedFile.InputStream.Length + 1];
            FileUpload1.PostedFile.InputStream.Read(imageBytes, 0, imageBytes.Length);
            cmd.Parameters.AddWithValue("@BinaryData", imageBytes);
            con.Open();
            cmd.ExecuteNonQuery();
            Label1.Text = "<br />File successfully uploaded - thank you.<br />";
            con.Close();
        }
        con.Close();
    }

Posted 5-May-11 4:18am

Arun_Reddy

Updated 5-May-11 4:27am

Keith Barrow

v2

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Comments

Baji Jabbar 5-May-11 10:26am

Does your file got uploaded ?

Arun_Reddy 9-May-11 5:57am

yes...

1 solution

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Not Active · Accepted Answer · 2011-05-05T04:41:00

Solution 1

using(SqlCommand cmd = new SqlCommand("SELECT BinaryData FROM FileUpload", connection))
{
   byte[] file = (byte)cmd.ExexcuteScalar();
   MemoryStream ms = new MemoryStream(file, true);
   ms.Write(file, 0, file.Length);

   using(StreamReader reader = new StreamReader(ms))
   {
     textbox.Text = reader.ReadToEnd();
   }
}

Posted 5-May-11 4:41am

Not Active

Comments

fjdiewornncalwe 5-May-11 10:59am

+5. Not much else to say. Just how I would do it as well.

Arun_Reddy 9-May-11 5:55am

using (SqlCommand cmd = new SqlCommand("SELECT BinaryData FROM FileUpload where FileName=" + TextBox1.Text.ToString(), con))
{

con.Open();
byte[] file =(byte[])cmd.ExecuteScalar();
MemoryStream ms = new MemoryStream(file, true);
ms.Write(file, 0, file.Length);

using (StreamReader reader = new StreamReader(ms))
{
Label4.Text = cmd.ExecuteScalar().ToString();
TextBox2.Text = reader.ReadToEnd();
}
con.Close();
}

But i cant get the text file to my textbox.........? it shows empty...