Check numeric validation in jQuery

<script type="text/javascript">

     var specialKeys = new Array();

     specialKeys.push(8); //Backspace

     function IsNumeric(e) {

         var keyCode = e.which ? e.which : e.keyCode

         var ret = ((keyCode >= 48 && keyCode <= 57) || specialKeys.indexOf(keyCode) != -1);

         return ret;

     }

    </script>

Angularjs with ajax

<script>
        var app = angular.module("myApp", []);
        app.controller("myCntrl", function ($scope, $http) {
            $scope.studentorder = "StudetnID";
            $scope.studetnName = "";
            $scope.Save = function () {
                var httpreq = {
                    method: 'POST',
                    url: 'Default.aspx/Save',
                    headers: {
                        'Content-Type': 'application/json; charset=utf-8',
                        'dataType': 'json'
                    },
                    data: { StudentName: $scope.studetnName }
                }
                $http(httpreq).success(function (response) {
                    $scope.fillList();
                    alert("Saved successfully.");
                })
            };
            $scope.Delete = function (SID) {
                if (confirm("Are you sure want to delete?")) {
                    var httpreq = {
                        method: 'POST',
                        url: 'Default.aspx/Delete',
                        headers: {
                            'Content-Type': 'application/json; charset=utf-8',
                            'dataType': 'json'
                        },
                        data: { StudentID: SID }
                    }
                    $http(httpreq).success(function (response) {
                        $scope.fillList();
                        alert("Deleted successfully.");
                    })
                }
            };
            $scope.fillList = function () {
                $scope.studetnName = "";
                var httpreq = {
                    method: 'POST',
                    url: 'Default.aspx/GetList',
                    headers: {
                        'Content-Type': 'application/json; charset=utf-8',
                        'dataType': 'json'
                    },
                    data: {}
                }
                $http(httpreq).success(function (response) {
                    $scope.StudentList = response.d;
                })
            };
            $scope.fillList();
        });
    </script>
   

Anchor tag contain textbox value as a query string

  <a href="Linkbutton2.aspx?name=<%= txt1.Text%>  ">Click Me</a>