I got One issues 500 Error In Web Service in Asp.net ,I tried different Ways ,I am unable to find exact reason why ? That Reason I writing this Post .
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| In Browser Developer tools we find following error 500 Internal Server Error |
Check the Following steps :-
Step 1:-
[System.Web.Script.Services.ScriptService]
public class firstService : System.Web.Services.WebService
{
}
Check that Attribute is Given Above Service or Not .
if not you will get Error. Normally if we create the .asmx File by Default this attribute will be in comment mode ,please un-comment .
Still issues not Resolved? following next Step
Step 2:-
[ScriptMethod(UseHttpGet = false,ResponseFormat = ResponseFormat.Json)]
[WebMethod]
public static List<employee> Employee()
{
}
Check your placed the following attribute or not .
[ScriptMethod(UseHttpGet = false,ResponseFormat = ResponseFormat.Json)]
Bydefault UseHttpGet is false ,you can write like
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
Still is Not Resolved ?
Step 3:- Check the ajax code what we write there
$.ajax({
type: "GET", ----> Type of Call //
url: "/webServices/firstService.asmx/Employee",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (list) {
$("#Something").append("<ul id='bullets'></ul>");
for (i = 0; i < list.d.length; i++) {
$("#bullets").append("<li>" + list.d[i].name + ":" + list.d[i].age);
}
},
error: function (e) {
$("#Something").html("There was an error retrieving records");
}
});
We Need to Change the Type of Ajax Call.
type: "GET", ----> // Issue here we need to Change the following line to " POST"
like this
$.ajax({
type: "POST",
url: "/webServices/firstService.asmx/Employee",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (list) {
$("#Something").append("<ul id='bullets'></ul>");
for (i = 0; i < list.d.length; i++) {
$("#bullets").append("<li>" + list.d[i].name + ":" + list.d[i].age);
}
},
error: function (e) {
$("#Something").html("There was an error retrieving records");
}
});
NOW issue is Resolved You can able to call [WebMethod] of Service.
