Ajax not hitting controller

Question

var pagenumber = $('#hdnID').val();

var params = { Bic: disBranchCode, };

$.ajax({

type: "POST",

url: 'Details',

data: JSON.stringify({ Bic: pagenumber }),

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

dataType: "json",

success: function (r) {

alert(JSON.stringify(r))

 

 

unable to hit contorller while edi button

 

<a id="alviewBranchCode" href="javascript:void(0)" onclick="return GetBranch()" class="btn btn-default" style="color:red;width:70px" >View</a>