I am using Jquery ajax to receive information from the database. I test server side method.It work properly . when the call in the page was an error json:
Message: “Invalid JSON primitive: }.”
StackTrace:
” at System.Web.Script.Serialization.JavaScriptObjectDe serializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)
depthLimit, JavaScriptSerializer serializer) at System.Web.Script.Serialization.JavaScriptSerializ er.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) at System.Web.Script.Serialization.JavaScriptSerializ er.Deserialize[T](String input) at System.Web.Script.Services.RestHandler.GetRawParam sFromPostRequest(HttpContext context, JavaScriptSerializer serializer) at System.Web.Script.Services.RestHandler.GetRawParam s(WebServiceMethodData methodData, HttpContext context) at System.Web.Script.Services.RestHandler.ExecuteWebS erviceCall(HttpContext context, WebServiceMethodData methodData)”
ExceptionType:”System.ArgumentException”
method sode is :
[WebMethod]
public static ParentDataT_book.OptionBook[] SearchNameBook(string nameBook, int state)
{
var bookBusiness = new T_bookBusiness();
return bookBusiness.GetList(nameBook, (byte)0).ToArray();
}
jquery ajax code is :
function searchBook() {
j.ajax({
type: "POST",
url: "Default.aspx/SearchNameBook", //نام صفحه و متد
data: "{'nameBook': '" + j('#ContentPlaceHolder1_txt_nameBook').val() + "', 'state': '" + j('#states').val() - 1 + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
var delay = function () {
AjaxSucceededSearch(msg);
};
setTimeout(delay, 1500); //remove this
},
error: AjaxFailedSearch
});
//});
};
// });
function AjaxSucceededSearch(data) {
if (result.d != null) {
alert("data is found!!!");
}
else
if (result.d == null) {
alert("data is not found!!!");
}
}
function AjaxFailedSearch(result) {
alert(result.status + ' ' + result.statusText);
}
Friends Do you know what the problem is?
Source: ajax
