[英]Ajax call returning 500 internal server error
I am trying to make a google map appear on my web page without using another page load. 我正在尝试在不使用其他页面加载的情况下使Google地图出现在我的网页上。 I keep getting an error when I try to call a web method that i have.
尝试调用我拥有的Web方法时,我总是收到错误消息。 Here is the code that I use to call the web method:
这是我用来调用Web方法的代码:
HTML 的HTML
<form id="cSharpServerSideForm" runat="server">
<asp:ScriptManager ID="_scriptManager" runat="server">
<Services>
<asp:ServiceReference Path="WebServices/Ajax.asmx" />
</Services>
</asp:ScriptManager>
</form>
Javascript: Javascript:
//To get webservice (located in document.ready)
vars.service = MyMap.WebServices.Ajax;
getInputForCenterMap = function () {
//The Jarray used
var jArrayCoords;
var ResponseArray;
//Input values
tCity = "";
tState = "";
tZip = "";
//Gets input values
tCity = $('#cityInput').val();
tState = $('#stateInput').val();
tZip = $('#zipInput').val();
//Checks to see inputs entered
if (tZip == "" && tState == "" && tCity == "") { //Nothing entered
//Error message
$('#cszErrorMessage').html("Please enter a city/state or zip code");
} else {
//In case of errors
try {
//Check what has been entered
if (tZip == "") { //City and state entered
//Init array call
jArrayCoords = new Array(2);
//Adds city and state to array
jArrayCoords[0] = tCity;
jArrayCoords[1] = tState;
} else { //Zip entered
//Init array call
jArrayCoords = new Array(1);
//Adds city and state to array
jArrayCoords[0] = tZip;
}
//Calls web service
vars.service.getMapCenterCoords(jArrayCoords, function (response) {
//Turns response into a jarray
responseArray = new Array(response);
//Rest of code
});
} catch (error) {
//Error message
}
}
C# C#
public double[] getMapCenterCoords(JArray userLocationInformation)
{
//Method information
}
I get there error as soon as the c# method is called. 一旦调用c#方法,我就会收到错误消息。 here is the error message:
这是错误消息:
500 Internal Server Error
"System.ArgumentException"
"Argument is not a JToken."
" at Newtonsoft.Json.Linq.JContainer.EnsureValue(Object value) at Newtonsoft.Json.Linq.JContainer.System.Collections.IList.Add(Object value) at System.Web.Script.Serialization.ObjectConverter.AddItemToList(IList oldList, IList newList, Type elementType, JavaScriptSerializer serializer, Boolean throwOnError) at System.Web.Script.Serialization.ObjectConverter.ConvertListToObject(IList list, Type type, JavaScriptSerializer serializer, Boolean throwOnError, IList& convertedList) at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject) at System.Web.Script.Services.WebServiceMethodData.StrongTypeParameters(IDictionary`2 rawParams) at System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters) at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams) at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)"
Any suggestions? 有什么建议么?
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