ajax and json get data and use simple examples in the foreground

Use ajax to obtain background data and return json data. How to use it in the foreground?

Backstage

if (dataType == "SearchCustomer")
        {
          int ID;
          if (Int32.TryParse(CustomerID, out ID))
          {
            string s = GridComputer.GridCustomer.getCustomer(1, 1, ID);
            if (s == null)
            {
              context.Response.ContentType = "text/plain";
              context.Response.Write("[{\"name\": No user ,\"id\":\"0\",\"company\":\" No user \"}]");
            }
            else { context.Response.Write(s); }
          }
 
        } 

Front desk

 $(document).ready(function () {
      $("#Button3").click(
    function (SucCallback) {
      $.ajax(
      {
        type: "get",
        url: 'GridDatas.ashx', // Background handler   
        dataType: 'json',   // Accept data format   
        data: 'DataType=SearchCustomer&CustomerID=' + document.getElementById("Text3").value,     // Data to pass   
        success:SucCallback,
        error: function () { alert("error"); }
      });
    })
    })

Reference code

grid.getCustomer(1,2,function (data) {
    var list = '<p>' + tree_GridInfo._name + ' Users of are </p><br>';
    list += '<table id="customers"><tr><th> Name </th><th> Telephone </th></tr> ';
    $.each(data, function (i, n) {
      list += '<tr onclick="showUser(' + 1 + ')"><td>';
      list += n.name + '</td>' + '<td>' + n.company;
      list += '</td></tr>';
    });
    $("#SearchResult").html(list)

See if your json data is a list or a single one, so there is no need for brackets

context.Response.Write("{\"name\": No user ,\"id\":\"0\",\"company\":\" No user \"}");

$(document).ready(function () {
      $("#Button3").click(
    function (SucCallback) {
      $.ajax(
      {
        type: "get",
        url: 'GridDatas.ashx', // Background handler   
        dataType: 'json',   // Accept data format   
        data: 'DataType=SearchCustomer&CustomerID=' + document.getElementById("Text3").value,     // Data to pass   
        function (dataJson) {
           alert(dataJson.Name);
           alert(dataJson.Id);
        },
        error: function () { alert("error"); }
      });
    })
    })

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