troubleshooting Question

c#/textarea - - issue with return from server//roundtrip

Avatar of GlobaLevel
GlobaLevelFlag for United States of America asked on
.NET ProgrammingC#ASP.NET
3 Comments1 Solution478 ViewsLast Modified:
the user enters a value and it makes it to the server and returns back to the client side....an alert box



everything works until it makes it back to the client from the server...an alert box is brought up showing that the values have attached to the textareas from the server...I clcik okay and the page returns and now the textareas are empty...what???



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="this_is_fine_no_worries.aspx.cs" Inherits="" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
                                                                     
                                              

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Untitled Page</title>
    <script src="http://code.jquery.com/jquery-1.5.min.js" language="javascript" type="text/javascript"></script> 
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

    <script language="javascript" type="text/javascript">

        var touched = false;
        var timer = null;
        var timeout = 4000; // 4 seconds

        var timer;
        var page_answer_ready;

        function after_answer() {

            if (page_answer_ready == true) {
                $("#TextArea2").text(answer);

            }


        }



   
        $(document).ready(function () {
            // Handler for .ready() called.

            if (page_answer_ready == true) {
                $("#TextArea2").text(answer);

            }

        });


    

        function startSearchTime(e) {
            window.clearTimeout(timer);
            var unicode = e.keyCode ? e.keyCode : e.charCode

            var timeToWait = 2000; // time in milliseconds;
            timer = window.setTimeout("doSearch()", timeToWait);
        }

        function doSearch() {
            window.clearTimeout(timer);
            // document.getElementById("Button1").click();
            CallSum()
        }


        var get_text;
        function CallSum() {
            alert("Hi there!");
            //////var txt1 = $get("</%= hotarea.ClientID %>");
            var txtresult = $get("txtSum");
            //var txtresult = "no value";
            get_text = $("#TextArea1").val();
            //PageMethods.Sum(txt1.value, OnCallSumComplete, OnCallSumError,txtresult);
            //PageMethods.Sum(txt1.value, OnCallSumComplete, OnCallSumError);
            PageMethods.Sum(get_text, OnCallSumComplete, OnCallSumError, txtresult);
        }

        var answer;
        var change_message;
        //function OnCallSumComplete(result, txtresult,methodName) {
        function OnCallSumComplete(result) {
            page_answer_ready = true;
            //Show the result in txtresult
            answer = result;
            //txtresult.value = result;
            alert(result);
            change_message = answer + "this message";
          $("#TextArea2").text(change_message);
         // document.getElementById('#TextArea2').value = result;
          
            $("label_answer").text(answer);
            alert(result);
        }

        function OnCallSumError(error, userContext, methodName) {
            // if (error !== null) {
            alert(error.get_message());
            // }
        }

        function $get(id) {
            return document.getElementById(id);
        }

// -->
</script>
    <style type="text/css">
        #TextArea1
        {
            width: 425px;
            height: 234px;
        }
        
         #TextArea2
        {
            width: 425px;
            height: 234px;
        }
        
        
           #hotarea
        {
            height: 192px;
            width: 424px;
        }
        
        #hotarea
        {
            height: 192px;
            width: 424px;
        }
    </style>
</head>
<body onload="after_answer()">
    <form id="form1" runat="server">
    <div>
    
        </div>
    <p>
        txtsum (Get a value to send to server)</p>
    <textarea id="TextArea1" run="server" cols="20" rows="2"></textarea>
    
    <p>
        &nbsp;</p>

        <br />
        <div id="Button_Click" onclick="CallSum()">
            <input type="submit" id="input_submit" value="Submit" />       
        </div>



    <p>
        hotarea (user input sent to server and now back)</p>
    
    <div id="div_TA2">
   
        <textarea id="TextArea2" cols="20" rows="2"></textarea>
        <input type="text" id="text_answer" />
        <label id="label_answer"></label>
    </div>
    
    <p>
        &nbsp;</p>
    <p>
        &nbsp;</p>
        <asp:scriptmanager ID="Scriptmanager1" runat="server" EnablePageMethods="true"></asp:scriptmanager>
    </form>
</body>
</html>

//===============
//===========
//===========
// code behind




using System.Data.SqlClient;
using System.IO;
//using System.Data.SqlClient.SqlDataAdapter;
//using System.Data.SqlClient.SqlConnection;
//using System.String;
//using System.StringComparison;
//using System.Text.StringBuilder;
//using System.Web.UI;
//using System.Web.UI.Page;
//using System.Web.UI.WebControls.TextBox;
//using System.Web.UI.WebControls;
//using System.Web.UI.ExtenderControl;
//using System.Random;
//using System.DateTime;
using System.Data.OleDb;
using System.Text;
using System.Data.Odbc;
using System.Data;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
//using System.Web.SessionState.HttpSessionState;

public partial class my_page : System.Web.UI.Page
{
    


    
    [System.Web.Services.WebMethod()]
     public static string Sum(String arg1)
    {
        // ' http://www.experts-exchange.com/Programming/Languages/.NET/Q_26878831.html
        // stackoverflow.com/questions/16775117/asp-net-scriptmanager-pagemethods-is-undefined


        arg1 = " made it to the server";

        return arg1;

    }


}
ASKER CERTIFIED SOLUTION
Chinmay Patel
Chief Technology Ninja
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