Question

How do I delete a row by just passing the id using a jquery ajax call on a link button?

$(document).ready(function(){ 
    $(".remove_row").click(function (event){ 
        event.preventDefault();        
        var url = $(this).attr('href'); 
        $.ajax({ 
            url: url, 
            success: function() { return false; }, 
            error: function(){ alert('An error.'); } 
        }); 
        return false;
    ); 
});

do I need to mention the dataType: and write success function .. when I want to just delete the row?

Answer 1

your question is not clear, assuming these possible cases:

1. you want to remove any element on your page

   $('#Elementid').remove();
   

2. you want to remove a row from a databound list or table i.e. you want to remove row from your database:

   in this case you will need to call server side static method and pass the id of the row to be deleted which can be done as shown below:

   $.ajax({
                type: "POST",
                url: "WebForm1.aspx/ServerSideMethod",
                data: "{'id':value}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                async: true,
                cache: false,
                success: function (msg) {
                    $('#myDiv').text(msg.d); 
                }
   });
   

and your ServerSideMethod on WebForm1.aspx should be like this:

  [WebMethod]
  public static string ServerSideMethod(int id)
  {
      string query ="delete from table where id="+id;
      //rest of the dml operation
      return "Message from server."; 
  }