protected void btnSendMessage_Click(object sender, EventArgs e)
        {
            String content = txtSendMessage.Text;

            CommunicationClass.insertMessage(conversationID, user, content);
            gvMessages.DataSource = CommunicationClass.getMessages(conversationID);
            gvMessages.DataBind();
        }
 protected void Page_Load(object sender, EventArgs e)
 {
     conversationID = Session["conversationID"].ToString();
     //debug
     //conversationID = "BobJen";
     user = Session["User"].ToString();
     gvMessages.DataSource = CommunicationClass.getMessages(conversationID);
     gvMessages.DataBind();
 }
        protected void gvMessages_SelectedIndexChanged(object sender, EventArgs e)
        {
            //String conversationID = gvMessages.Rows[gvMessages.SelectedIndex].Cells[3].Text;
            int messageID = Convert.ToInt32(gvMessages.Rows[gvMessages.SelectedIndex].Cells[3].Text);

            Session["conversationID"] = conversationID;
            CommunicationClass.deleteMessage(messageID);
            gvMessages.DataSource = CommunicationClass.getMessages(conversationID);
            gvMessages.DataBind();
        }