Ajax web method not found

Question

I am trying to save data using web method. But it shows an error like method not found.

function InsertMasterCourse() {
    var data = {};
    data.Name = $('[id$=txtName]').val();
    $.ajax({
        type: 'POST',
        url: '<%= ResolveUrl("~/MasterService.asmx/InsertMasterCourse") %>',
        data: "{data:" + JSON.stringify(data) + "}",
        contentType: "application/json; charset=utf-8",
        dataType: 'json',
        async: true,
        success: function (response) {
            $('#txtName').val('');
        },
        error: function (response) {
            alert(response.statusText);
        }
    });

    return false;
}

In .asmx

[WebMethod()]
    [ScriptMethod()]
    public static void InsertMasterCourse(Master_CourseBLL data)
    {
        data.CollegeId = 1;
        data.Status = "Active";
        data.CreatedOn = DateTime.Now;
        data.UpdatedOn = DateTime.Now;
        data.Save(true);
    }

In my web.config I have add http get and post request as follows

<location path="MasterService.asmx">
<system.web>
  <webServices>
    <protocols>
      <add name="HttpGet"/>
      <add name="HttpPost"/>
    </protocols>
  </webServices>
</system.web>

If i check google chrome console, it shows error like InsertMasterCourse.aspx not found. .aspx added with my web service method. How to solve it.

Try removing the ScriptMethod() attribute. This will cause it to accept only GET requests. https://stackoverflow.com/questions/941484/webmethod-vs-scriptmethod . Also as per this example, you may need the ScriptService() attribute on the ASMX class declaration: https://www.aspsnippets.com/Articles/Call-Consume-Web-Service-ASMX-using-jQuery-AJAX-in-ASPNet.aspx — ADyson, Jun 13 '17 at 13:04
Yes, I have removed ScriptMethod(). but still getting not found error — Hisanth, Jun 14 '17 at 08:00
did you ensure you have everything set up properly as per the second link I gave? — ADyson, Jun 14 '17 at 08:52

score 0 · Answer 1 · edited Feb 19 '18 at 12:29

try this -

function InsertMasterCourse() {
    var data = {};
    data.Name = $('[id$=txtName]').val();
    $.ajax({
        type: 'POST',
        url: '<%= ResolveUrl("~/MasterService.asmx/InsertMasterCourse") %>',
        data: JSON.stringify(data),
        contentType: "application/json; charset=utf-8",
        dataType: 'json',
        async: true,
        success: function (response) {
            $('#txtName').val('');
        },
        error: function (response) {
            alert(response.statusText);
        }
    });
    return false;
}

In .asmx use Newtonsoft.dll in your assemble reference

using System.NewtonSoft.Data;
[WebMethod()]
[ScriptMethod()]
public static void InsertMasterCourse(string data)
{
     Datatable dt = Newtonsoft.Json.JsonConvert.DeSerializeObject(data);
}

Ajax web method not found

1 Answers1