How to call static web method using ajax

Question

Getting alert as undefined in ajax

 

[WebMethod]

public List getDHEW()

{

if (st == ConnectionState.Closed)

con.Open();

List count = new List();

cmd = new SqlCommand(quy1,con);

int dcnt = (Int32)cmd.ExecuteScalar();

count.Add(dcnt);

cmd = new SqlCommand(quy2,con);

int ecnt = (Int32)cmd.ExecuteScalar();

count.Add(ecnt);

//JavaScriptSerializer ser = new JavaScriptSerializer();

//return ser.Serialize(count);

return count;

}

 

 

Ajax call

 

$.ajax({

type: "POST",

url: "WebService.asmx/getDHEW",

contentType: "application/json; charset=utf-8",

data: {},

dataType: "json",

success: function (data) {

alert(data.d);

},

error: function (response) {

alert(response.d);

}

});