I got this error when i send 2 parameter from jQuery to WebMethod and using multiple params.
{"Message":"Invalid web service call, missing value for parameter: \u0027haha\u0027.","StackTrace":" at System.Web.Script.Services.WebServiceMethodData.CallMethod(Object target, IDictionary`2 parameters)\r\n at System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters)\r\n at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"}
In jQuery:
$(".txtNoiDung").focusout(function () {
$.ajax({
type: "POST",
url: "QuanLyTin.aspx/test1cai",
data: JSON.stringify({ hahas: $(this).val(),tuans: "hahaha" }),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
$("#vltxtNoiDung").text(msg.d)
},
error: function (xhr, reason, ex) {
alert(reason);
}
});
});
In code behind
[WebMethod()]
public static string test1cai(string haha, string tuan)
{
return "Hi, "+haha + tuan;
}
How can i resolve it? Thanks you guys.
Your service is accepting parameters named haha
and tuan
, but your JavaScript is passing in hahas
and tuans
. Remove the "s" from both:
data: JSON.stringify({ haha: $(this).val(),tuan: "hahaha" }),
Also, keep in mind that these parameters much match between client- and server-side with case-sensitivity.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With