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Solved
ajax, jquery and web method in asp.net
Posted on 2016-09-01
I dont know what I am doing wrong, in the jquery it looks fine and I had a alert(data) i see everything going to the server side page, but the response is undefined, any way this is client side code and server side code:
Client side:
Server side:
what I am doing wrong?
Thanks guys
Client side:
$("#listingerrorSnd").click(function () {
var GenName = document.getElementById("<%: anonName.ClientID %>").value;
var fromEmail = document.getElementById("<%: anonEmail.ClientID %>").value;
var GenSubject = document.getElementById("<%: typeErr.ClientID %>").value;
var GenMsg = document.getElementById("<%: TMNmsg.ClientID %>").value;
var Esname = document.getElementById("<%: escortName.ClientID %>").value;
var data = "{'name': '" + GenName + "', 'fromEmail': '" +
fromEmail + "','subject': '" + GenSubject + "','msg': '" + GenMsg + "'}";
//,'EscortName':" + Esname +
alert(data)
$.ajax({
type: "POST",
url: "../serv.aspx/SendEsError",
cache: false,
data: JSON.stringify(data),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
//if(r.length > 0)
// // do something
// console.log(r.data);
//{
//else
//{
// console.log("no result");
//}
//complete: function (transport) {
// for testing purposes
// $('#formcontainer').hide().html('<h1>The status is: ' + transport.status + '</h1>').fadeIn(800);
//if (transport.status == 200) {
$('#reportError').fadeOut(950);
$('#formcontainer').hide().html('<h1>Success</h1>').fadeIn(800);
$('#listingerrorsntmsg').hide().fadeIn(1000);
//$('#listingerrorsntmsg').html('<br /><br /><blockquote>Thank you <strong>' + GenName + '</strong> the report has been sent to TMN and we will look into it ASAP to fix any errors with <strong>' + Esname + 's</strong> listing. ' + r.d)
$('#listingerrorsntmsg').html(r.GenName);
//console.log(r.Esname);
alert(r.d)
//}
},
error: function (data, status, error) {
//$("#errorDiv").fadeIn(800);
//$("#errorDiv").html('error occured: ' + error + '<br /><br />');
$('#reportError').fadeOut(950);
$('#formcontainer').hide().html('<h1><span>Please try again later ' + GenName + '</span></h1>').fadeIn(1500);
console.log(error);
}
//else {
//alert("Please try again later");
//$('#reportError').fadeOut(950);
//$('#formcontainer').hide().html('<h1><span>Please try again later ' + GenName + '</span></h1>').fadeIn(1500);
// }
//}
});
Server side:
<WebMethod()>
Public Shared Function SendEsError(ByVal GenName As String, ByVal fromEmail As String, ByVal GenSubject As String, ByVal GenMsg As String, ByVal EsName As String) As String
Return "Hello " & GenName & DateTime.Now.ToString()
End Function
what I am doing wrong?
Thanks guys
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46 Comments
Active today
I see, client side : dataType : "json"
and server side : ..., ByVal EsName As String) As String
and server side : ..., ByVal EsName As String) As String
Leakim971 I changed the server side code to this:
Public Shared Function SendEsError(ByVal name As String, ByVal fromEmail As String, ByVal subject As String, ByVal msg As String) As String
Return name
End Function
in the client side it is json, so
Public Shared Function SendEsError(ByVal name As String, ByVal fromEmail As String, ByVal subject As String, ByVal msg As String) As String
Return name
End Function
in the client side it is json, so
Active today
for the success :
success: function(r) {
console.log(r.d);
alert( JSON.stringify(r.d) );
},
success: function(r) {
console.log(r.d);
alert( JSON.stringify(r.d) );
},
Active today
you get a nice response.
where do you get "undefined" ?
To display the name, just use :
where do you get "undefined" ?
To display the name, just use :
success : function(r) {
console.log( r.d.name);
},
now I got this error:
default?cat=994:305 Uncaught TypeError: Cannot read property 'name' of undefined
default?cat=994:305 Uncaught TypeError: Cannot read property 'name' of undefined
Active today
in the first screenshot this alert worked fine, that why you see the popup
and the next screenshot show the result did not come fine anymore
and the next screenshot show the result did not come fine anymore
screen shot again
scrn3.jpg
scrn3.jpg
Active today
I don't see the beginning of your success function anymore
why do you place the console.log or alert after all your code ?
put it just after the success and show me (post the code) you currently have + screenshot
why do you place the console.log or alert after all your code ?
put it just after the success and show me (post the code) you currently have + screenshot
here it is again:
$("#listingerrorSnd").click(function () {
var GenName = document.getElementById("<%: anonName.ClientID %>").value;
<%-- var fromEmail = document.getElementById("<%: anonEmail.ClientID %>").value;
var GenSubject = document.getElementById("<%: typeErr.ClientID %>").value;
var GenMsg = document.getElementById("<%: TMNmsg.ClientID %>").value;
var Esname = document.getElementById("<%: escortName.ClientID %>").value;--%>
//var data = "{'name': '" + GenName + "', 'fromEmail': '" +
// fromEmail + "','subject': '" + GenSubject + "','msg': '" + GenMsg + "'}";
var data = "{'name':'" + GenName + "'}";
//,'EscortName':" + Esname +
alert(data)
$.ajax({
type: "POST",
url: "../serv.aspx/SendEsError",
async: true,
cache: false,
data: JSON.stringify(data),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
//if(r.length > 0)
// // do something
// console.log(r.data);
//{
//else
//{
// console.log("no result");
//}
//complete: function (transport) {
// for testing purposes
// $('#formcontainer').hide().html('<h1>The status is: ' + transport.status + '</h1>').fadeIn(800);
//if (transport.status == 200) {
$('#reportError').fadeOut(950);
$('#formcontainer').hide().html('<h1>Success</h1>').fadeIn(800);
$('#listingerrorsntmsg').hide().fadeIn(1000);
//$('#listingerrorsntmsg').html('<br /><br /><blockquote>Thank you <strong>' + GenName + '</strong> the report has been sent to TMN and we will look into it ASAP to fix any errors with <strong>' + Esname + 's</strong> listing. ' + r.d)
$('#listingerrorsntmsg').html(r.name);
console.log(r.d);
alert(JSON.stringify(r.d));
//}
},
error: function (data, status, error) {
//$("#errorDiv").fadeIn(800);
//$("#errorDiv").html('error occured: ' + error + '<br /><br />');
$('#reportError').fadeOut(950);
$('#formcontainer').hide().html('<h1><span>Please try again later ' + GenName + '</span></h1>').fadeIn(1500);
console.log(error);
}
//else {
//alert("Please try again later");
//$('#reportError').fadeOut(950);
//$('#formcontainer').hide().html('<h1><span>Please try again later ' + GenName + '</span></h1>').fadeIn(1500);
// }
//}
});
Active today
not sure what happen after #41780582
you said you add : alert(JSON.stringify(r.d.n
but this is not the issue that stopped to return you a valid JSON, you change something else
you said you add : alert(JSON.stringify(r.d.n
but this is not the issue that stopped to return you a valid JSON, you change something else
Active today
no, replace the previous code, we don't need it anymore.
it was just to check the type of the object returned.
it was just to check the type of the object returned.
now it says:
{"Message":"Authentication
with this code:
console.log(JSON.stringify
{"Message":"Authentication
with this code:
console.log(JSON.stringify
I modified the server side code to this
btw
<WebMethod()>
Public Shared Function SendEsError(ByVal GenName As String) As String
Return GenName
End Function
btw
this message means I don't have permission and i changed the web.config as well
message: {"Message":"Authentication
web.config:
<authorization>
<allow users="*"/>
</authorization>
Still the same message
now I changed the RouteConfig.vb
settings.AutoRedirectMode = RedirectMode.Off but with this code now I have a 500 error so I change it back like this
settings.AutoRedirectMode = RedirectMode.Permanent
now I get the same message:
{"Message":"Authentication
this is driving me crazy
message: {"Message":"Authentication
web.config:
<authorization>
<allow users="*"/>
</authorization>
Still the same message
now I changed the RouteConfig.vb
settings.AutoRedirectMode = RedirectMode.Off but with this code now I have a 500 error so I change it back like this
settings.AutoRedirectMode = RedirectMode.Permanent
now I get the same message:
{"Message":"Authentication
this is driving me crazy
Active 1 day ago
There's a few things "going wrong" here...
1. You can use WebForms to act as Webservice endpoints but they're not really made for that. WebForms have lots of unnecessary overhead and worse still you have to account for the entire page lifecycle. Consider using a Generic Handler instead.
2. If you're only doing a simple post and result display, don't dig into the bowels that the framework authors have already abstracted away for you; use the simpler constructs/functions instead.
3. Whenever you start to thrash about, go back to the most basic starting point that you can and build up from there.
With all that said, here's what I've got as my solution to simply get things working:
Here's my server side code in its entirety. Notice that I've used a Generic Handler (.ashx) instead of a WebForm (.aspx).
Here is my client side code in its entirety. Notice that I've used the MUCH simpler $.post() function instead of the $.ajax() function. Also, note that since you're posting the data there's no requirement to .stringify it (though you might want to for security concerns). In that case you'll want to turn the individual values into strings, not the entire data element (which I don't do at all here):
And that is it. Now clicking Send Error in the screenshot below...
... results in the following sent back from the server:
I hope this helps!
1. You can use WebForms to act as Webservice endpoints but they're not really made for that. WebForms have lots of unnecessary overhead and worse still you have to account for the entire page lifecycle. Consider using a Generic Handler instead.
2. If you're only doing a simple post and result display, don't dig into the bowels that the framework authors have already abstracted away for you; use the simpler constructs/functions instead.
3. Whenever you start to thrash about, go back to the most basic starting point that you can and build up from there.
With all that said, here's what I've got as my solution to simply get things working:
Here's my server side code in its entirety. Notice that I've used a Generic Handler (.ashx) instead of a WebForm (.aspx).
<%@ WebHandler Language="VB" Class="serv" %>
Imports System
Imports System.Web
Public Class serv : Implements IHttpHandler
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim request = context.Request.Form
Dim GenName = request("name")
Dim serializer = New Script.Serialization.JavaScriptSerializer
Dim result = serializer.Serialize(New With {.d = String.Format("Hello {0}", GenName)})
context.Response.ContentType = "application/json; charset=utf-8"
context.Response.Write(result)
End Sub
Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
Get
Return False
End Get
End Property
End Class
Here is my client side code in its entirety. Notice that I've used the MUCH simpler $.post() function instead of the $.ajax() function. Also, note that since you're posting the data there's no requirement to .stringify it (though you might want to for security concerns). In that case you'll want to turn the individual values into strings, not the entire data element (which I don't do at all here):
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.0.min.js"></script>
</head>
<body>
<form id="form1" runat="server"></form>
<div>
<p>
<input type="text" id="GenName" value="Who Am I?" />
</p>
<p>
<button id="listingerrorSnd">Send Error</button>
</p>
</div>
<script>
$(document).ready(function () {
$("#listingerrorSnd").click(function () {
var data = { 'name': $("#GenName").val() };
var url = "../serv.ashx";
$.post(url, data)
.done(function (r) {
alert('SUCCESS!\n' + r.d);
})
.fail(function (data, status, error) {
console.log("error: " + error);
});
});
});
</script>
</body>
</html>
And that is it. Now clicking Send Error in the screenshot below...
... results in the following sent back from the server:
I hope this helps!
i will show you this is the server side code:
and this from the client side code:
<WebMethod()>
<ScriptMethod(ResponseFormat:=ResponseFormat.Json)>
Public Function SendReport(name As String, fromEmail As String, subject As String, msg As String) As String
If Not String.IsNullOrEmpty(name) And Not String.IsNullOrEmpty(fromEmail) And subject <> "Please choose one" Then
Dim listingerror_mailclient As SmtpClient = New SmtpClient()
Dim listingerror_plainView As AlternateView
Using message = New MailMessage()
With message
.From = New MailAddress(fromEmail, name)
.To.Add(New MailAddress("tony@themalenude.com", "Tony Trapp"))
.Subject = String.Concat("TMN listing error report: ", subject)
.Priority = MailPriority.High
.IsBodyHtml = False
listingerror_plainView = AlternateView.CreateAlternateViewFromString(String.Concat("Tony an escort listing report has been made by ", name, " and you can read the problem below", vbCrLf, vbCrLf,
"Reason is: ", subject, vbCrLf, vbCrLf,
"Escorts Name is: ", name, vbCrLf, vbCrLf,
"Escorts profile page is: http://www.themalenude.com/gay/escorts/?cat=", HttpContext.Current.Request.QueryString("cat"), vbCrLf, vbCrLf,
"Additonal comments if any: ", msg, ""), Nothing, "text/plain")
.AlternateViews.Add(listingerror_plainView)
End With
Try
listingerror_mailclient.Send(message)
Return String.Concat("Report ", subject, " was sent ", name)
Catch ex As Exception
Return ex.Message
End Try
End Using
Else
Return "Name, Email, and subject is required, try again please"
End If
'Dim inputString As String = Server.HtmlEncode(Input)
'If Not String.IsNullOrEmpty(name) Then
' Return String.Concat("Hi there ", name, " this is from the server, this is the email: ", fromEmail, " this is the subject: ", subject, " this is the message ", vbCrLf, vbCrLf, msg)
'Else
' Return "The input string was null or empty."
'End If
End Function
and this from the client side code:
$("#listingerrorSnd").click(function () {
var GenName = document.getElementById("<%: anonName.ClientID %>").value;
var fromEmail = document.getElementById("<%: anonEmail.ClientID %>").value;
var GenSubject = document.getElementById("<%: typeErr.ClientID %>").value;
var GenMsg = document.getElementById("<%: TMNmsg.ClientID %>").value;
var Esname = document.getElementById("<%: escortName.ClientID %>").value;
var data = "{'name': '" + GenName + "', 'fromEmail': '" +
fromEmail + "','subject': '" + GenSubject + "','msg': '" + GenMsg + "'}";
// alert(data)
var over = '<div id="overlay">' + '<div id="loading">Sending<br /><img src="../images/ajax-loader.gif">' + '</div></div>';
$(over).appendTo('#reportError').hide().fadeIn('slow');
$.ajax({
type: "POST",
url: "../tmnser.asmx/SendReport",
async: true,
cache: false,
data: data,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
console.log(JSON.stringify(r.d));
$('#reportError').fadeOut(950);
$('#overlay').remove();
if (r.d == "Failure sending mail.")
{
$('#formcontainer').hide().html('<h1><span>Error ' + GenName + '</span></h1>').fadeIn(925);
$('#btngen').hide().html('<br /><input id="tryagain" type="button" value="Try again" class="btn btn-default" />').fadeIn(925);
}
else if (r.d == "Name, Email, and subject is required, try again please")
{
$('#formcontainer').hide().html('<h1><span>Error ' + GenName + '</span></h1>').fadeIn(925);
$('#btngen').hide().html('<br /><input id="goback" type="button" value="Go Back" class="btn btn-default" />').fadeIn(925);
}
else
{
$('#formcontainer').hide().html('<h1>Success</h1>').fadeIn(925);
}
$('#listingerrorsntmsg').hide().fadeIn(825);
$('#listingerrorsntmsg').html(r.d);
// try again
$("#tryagain").click(function () {
$('#formcontainer').fadeOut(950);
$('#reportError').fadeIn(850);
$('#listingerrorsntmsg').empty();
$('#btngen').empty();
});
// go back to the form
$("#goback").click(function () {
$('#formcontainer').fadeOut(950);
$('#reportError').fadeIn(850);
$('#listingerrorsntmsg').empty();
$('#btngen').empty();
});
},
error: function (data, status, error) {
$('#reportError').fadeOut(950);
$('#formcontainer').hide().html('<h1><span>Please try again later ' + GenName + '</span></h1>').fadeIn(1500);
$('#overlay').remove();
console.log(error);
}
});
});
But now I have another question what I want to do is reload the comments section its a <asp:repeater but I don't want the page reload only the section, how can I do that.
This is the client side code:
I tired everything with no luck
This is the client side code:
$("#pstcmt").click(function () {
//window.location.reload();
var Cmt = document.getElementById("<%: Txtcomment.ClientID %>").value;
var datacmt = "{'comment':'" + Cmt + "', 'EsId':'<%: HttpContext.Current.Request.QueryString("cat") %>','uname':'<%: Context.User.Identity.Name %>'}"
//alert(datacmt);
console.log(datacmt);
var overcmt = '<div id="overlay">' + '<div id="loading">Loading<br /><img src="../images/ajax-loader.gif">' + '</div></div>';
$(overcmt).appendTo('#pstcmtES').hide().fadeIn('slow');
$.ajax({
type: "POST",
url: "../tmnser.asmx/postEscortComment",
async: true,
cache: false,
data: datacmt,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
console.log(JSON.stringify(r.d));
$('#overlay').remove();
if (r.d == "comments are required") {
$('#ErrorCmt').hide().html('<h1><span>Error ' + $.parse(r.d) + '</span></h1>').fadeIn(925);
//$('#btngenCmt').hide().html('<br /><input id="goback" type="button" value="Go Back" class="btn btn-default" />').fadeIn(925);
}
else {
var Cmt2 = document.getElementById("<%: Txtcomment.ClientID %>").value = '';
// $('#commemtFrm').fadeOut(950);
$('#ErrorCmt').hide().html('<h1>Success</h1>').fadeIn(925);
// this is the asp.net repeater
$('<%: tmnescortscomments.ClientID %>').bind()
}
},
error: function (data, status, error, message) {
$('#ErrorCmt').hide().html('<h1><span>Please try again later</span></h1>').fadeIn(1500);
$('#overlay').remove();
console.log(data, status, error, xhr.responseText);
}
});
});
I tired everything with no luck
Active 1 day ago
Assuming that the comments section is the tmnescortscomments you're speaking of and it actually corresponds to a DIV in the emitted HTML you should have the basis for what you need. I don't see your JavaScript bind() function (on line 35) so I don't know what it does. Unless it has code to manipulate tmnescortscomments then that bind() isn't going to do what you think.
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