how to fetch data in javascript from asp.cs method

Question

i have following code how to bind grid using Java script i want to call aspx.cs code and retrieve data and bind with grid without post-back please help me. i am new asp.net please help me. i have call this method but not success

       <script type='text/javascript'>


                          $(document).ready(function () {

                              bindjs();

                          })

                          function bindjs() {

                              PageMethods.BindGrid(Success, Failure);
                          }
                          function Success(result) {
                              alert(result);
                          }
                          function Failure(error) {
                              alert(error);
                          }
</script>

and my Asp.cs method is

    [WebMethod]
    public static  DataTable BindGrid()
    {

        con = new SqlConnection(constr);
        da = new SqlDataAdapter("select tblStudent.student_id,tblStudent.student_name,tblStudent.father_name," +
            "tblStudent.Cell,tblStudent.parents_cell,tblStudent.admission_date,tblclassinfo.class_name,address_student" +
            " from tblStudent  inner join tblclassinfo on tblStudent.class_id =  tblclassinfo.class_id", con);



        DataTable dt = new DataTable();
        da.Fill(dt);
        return dt;

    }

are you using url: "localhost:54913/pages/studentinformation.aspx" like wcf for you? — Enrique YC
– Enrique YC, Commented May 17, 2016 at 20:56
ahh ok, so you dont have call any post on your javascript , only you have set public your method and access from javascript, or trt this c-sharpcorner.com/UploadFile/rohatash/… — Enrique YC
– Enrique YC, Commented May 17, 2016 at 21:02
the best mode is using ajax wcf enabled with c# , in this case once defined your webservice and method you can access via javascript and with jquery or custom dom render your grid c-sharpcorner.com/UploadFile/0c1bb2/ajax-enabled-wcf-service — Enrique YC
– Enrique YC, Commented May 17, 2016 at 21:43

pparas · Accepted Answer · 2016-05-17 21:04:34Z

1

You will have to change the cs class to be inherited from

public class Service1 : System.Web.Services.WebService

And then you method as follows

<WebMethod()> _
void BindGrid(string bookingInformation) {

    //your code here

}

answered May 17, 2016 at 21:04

pparas

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