video files upload

You can try this code sample
 protected void Button1_Click(object sender, EventArgs e)
    {

//put these connection code here instead of pageload.

      string connectionString = 
        ConfigurationManager.ConnectionStrings["uploadConnectionString"].ConnectionString;
        sqlcon = new SqlConnection(connectionString);
        sqlcon.Open();

        cmd1.Parameters.Add("@vid", SqlDbType.Int);
        cmd1.Parameters.Add("@vidfile", SqlDbType.VarBinary, 1000);
        cmd1.Parameters.Add("@vidname", SqlDbType.VarChar, 1000);
        if (FileUpload1.HasFile && FileUpload1.PostedFile != null && FileUpload1.PostedFile.FileName != "")
        {
            HttpPostedFile file = FileUpload1.PostedFile;
            string fn = FileUpload1.PostedFile.FileName;
            cmd1.Parameters["@vid"].Value = 1;
            buffer = new byte[file.ContentLength];
            int bytesReaded = file.InputStream.Read(buffer, 0, FileUpload1.PostedFile.ContentLength);
            cmd1.Parameters["@vidfile"].Value = buffer;
            cmd1.Parameters["@vidname"].Value = fn;
            if (bytesReaded > 0)
            {
                try
                {
                    
                    cmd1.CommandText = "Insert into vidtable (vid, vidfile, vidname)" +
                        "Values (@vid, @vidfile, @vidname)";
                    cmd1.Connection = sqlcon;

                    int i = cmd1.ExecuteNonQuery();
                    Label1.Text = "uploaded, " + i.ToString() + " rows affected";
                }
                catch (Exception ex)
                {
                    Label1.Text = ex.Message.ToString();
                }
            }
        }

        else
        {
            Label1.Text = "Choose a valid video file";
        }
    }