ASP.Net AJAX-- how to display ajax response in html

Saravanan Ponnusamy

my code:

$(document).ready(function () {
$("[id*=Aspx_Dropdown_Back]").change(function () {
$.ajax({
type: "POST",
url: "View.aspx/GetVariables",
data:JSON.stringify({"xszBack": document.getElementById ( "<%= Aspx_Dropdown_Back.ClientID %>" ).value}),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function() {
alert("F");
}
});
});
});
function OnSuccess(data) {
var msg = data.hasOwnProperty("d") ? data.d : data;
$("#divToAddTo").empty();
$("#divToAddTo").html(msg);
}

code behind:

[WebMethod, ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]
public static string GetVariables(string xszBack)
{
string Retrunstring = "";
Retrunstring = "";
return zszRetrunstring;
}

im trying to get string(HTML string) from code behind function and display in DIV tag by using ajax reponse data.

but i cant do that.. no error raising..

if i given that HTML string directly in AJAX Success methos,, like below..

its working fine... and two textbox's are generated inside DIV tag.

but the string, same string which i get from code behind.. its not working..

pls. dont refer any web reference... pls. give any code..

thanks all...

3 Replies

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Sanoj Vishwakarma8y ago
Because at runtime asp controls are converted to html and it shows into html. Asp controls not supported in html dom. That's why your asp control doesn't work in html dom
Saravanan Ponnusamy8y ago
@sanoj,

i found the problem...

if i pass html-controls , insted of ASP-controls,, .. like below code...
[WebMethod, ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]
public static string GetVariables(string xszBack)
{
string Retrunstring = "";
Retrunstring = "
";
return zszRetrunstring;
}
now its working fine.. i can show textbox's dynamically using ajax request..

but..now i got another question.. why? Ajax not accept ASP-Controls from code behind ...

it wont ?? or any way to do that???
Sanoj Vishwakarma8y ago
Everything is fine..
Check your web method service .

[WebMethod, ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]
public static string GetVariables(string xszBack)
{
string Retrunstring = "";
Retrunstring = "";
return zszRetrunstring; <== return different variable
}