Parameter passed to Core Controller always null












0














I am upgrading mvc application to .Net Core and am having difficulty passing a string value via ajax to the controller. I have tried various solutions I found on the web ([FormBody], prefixing with "=", and some others), but no luck. The value is always null. What has changed in Core that I need to fix?



Thanks!



        var result = "";
$.ajax({
url: "/system/loadchildrenaccounts/",
type: "POST",
data: JSON.stringify({ "parentID": "12345" }),
contentType: 'application/json; charset=utf-8',
success: function (data) {
result = data;
},
done: function (data) {
result = data;
},
fail: function (data) {
result = data;
},
error: function (jqXHR, textStatus, errorThrown) {
//alert('request failed :' + errorThrown);
}
});


public string LoadChildrenAccounts(string parentID)
{
using (zBestContext db = new zBestContext())
{
List<Generic> s = db.Accounts.Where(a => a.ParentAccountID == parentID)
.Select(a => new Generic { LabelOrID = a.AccountID, Description = a.Company })
.OrderBy(a => a.Description)
.ToList();

Generic item = new Generic();
item.LabelOrID = "";
item.Description = "*** Company ***";
s.Insert(0, item);

return s.toJSON();
}
}









share|improve this question



























    0














    I am upgrading mvc application to .Net Core and am having difficulty passing a string value via ajax to the controller. I have tried various solutions I found on the web ([FormBody], prefixing with "=", and some others), but no luck. The value is always null. What has changed in Core that I need to fix?



    Thanks!



            var result = "";
    $.ajax({
    url: "/system/loadchildrenaccounts/",
    type: "POST",
    data: JSON.stringify({ "parentID": "12345" }),
    contentType: 'application/json; charset=utf-8',
    success: function (data) {
    result = data;
    },
    done: function (data) {
    result = data;
    },
    fail: function (data) {
    result = data;
    },
    error: function (jqXHR, textStatus, errorThrown) {
    //alert('request failed :' + errorThrown);
    }
    });


    public string LoadChildrenAccounts(string parentID)
    {
    using (zBestContext db = new zBestContext())
    {
    List<Generic> s = db.Accounts.Where(a => a.ParentAccountID == parentID)
    .Select(a => new Generic { LabelOrID = a.AccountID, Description = a.Company })
    .OrderBy(a => a.Description)
    .ToList();

    Generic item = new Generic();
    item.LabelOrID = "";
    item.Description = "*** Company ***";
    s.Insert(0, item);

    return s.toJSON();
    }
    }









    share|improve this question

























      0












      0








      0







      I am upgrading mvc application to .Net Core and am having difficulty passing a string value via ajax to the controller. I have tried various solutions I found on the web ([FormBody], prefixing with "=", and some others), but no luck. The value is always null. What has changed in Core that I need to fix?



      Thanks!



              var result = "";
      $.ajax({
      url: "/system/loadchildrenaccounts/",
      type: "POST",
      data: JSON.stringify({ "parentID": "12345" }),
      contentType: 'application/json; charset=utf-8',
      success: function (data) {
      result = data;
      },
      done: function (data) {
      result = data;
      },
      fail: function (data) {
      result = data;
      },
      error: function (jqXHR, textStatus, errorThrown) {
      //alert('request failed :' + errorThrown);
      }
      });


      public string LoadChildrenAccounts(string parentID)
      {
      using (zBestContext db = new zBestContext())
      {
      List<Generic> s = db.Accounts.Where(a => a.ParentAccountID == parentID)
      .Select(a => new Generic { LabelOrID = a.AccountID, Description = a.Company })
      .OrderBy(a => a.Description)
      .ToList();

      Generic item = new Generic();
      item.LabelOrID = "";
      item.Description = "*** Company ***";
      s.Insert(0, item);

      return s.toJSON();
      }
      }









      share|improve this question













      I am upgrading mvc application to .Net Core and am having difficulty passing a string value via ajax to the controller. I have tried various solutions I found on the web ([FormBody], prefixing with "=", and some others), but no luck. The value is always null. What has changed in Core that I need to fix?



      Thanks!



              var result = "";
      $.ajax({
      url: "/system/loadchildrenaccounts/",
      type: "POST",
      data: JSON.stringify({ "parentID": "12345" }),
      contentType: 'application/json; charset=utf-8',
      success: function (data) {
      result = data;
      },
      done: function (data) {
      result = data;
      },
      fail: function (data) {
      result = data;
      },
      error: function (jqXHR, textStatus, errorThrown) {
      //alert('request failed :' + errorThrown);
      }
      });


      public string LoadChildrenAccounts(string parentID)
      {
      using (zBestContext db = new zBestContext())
      {
      List<Generic> s = db.Accounts.Where(a => a.ParentAccountID == parentID)
      .Select(a => new Generic { LabelOrID = a.AccountID, Description = a.Company })
      .OrderBy(a => a.Description)
      .ToList();

      Generic item = new Generic();
      item.LabelOrID = "";
      item.Description = "*** Company ***";
      s.Insert(0, item);

      return s.toJSON();
      }
      }






      .net ajax string null core






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      asked Nov 19 '18 at 16:14









      Graham Davis

      1




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          1 Answer
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          0














          Your controller action (that I am assuming is configured to accept POST requests)



          public string LoadChildrenAccounts(string parentID)



          accepts a bare string as parameter but you are POSTing an object with a property of type string ({ "parentID": "12345" }).



          Try changing data: stringify({ "parentID": "12345" }) to data: JSON.stringify("12345")






          share|improve this answer





















          • Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
            – Graham Davis
            Nov 21 '18 at 2:39













          Your Answer






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          1 Answer
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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          Your controller action (that I am assuming is configured to accept POST requests)



          public string LoadChildrenAccounts(string parentID)



          accepts a bare string as parameter but you are POSTing an object with a property of type string ({ "parentID": "12345" }).



          Try changing data: stringify({ "parentID": "12345" }) to data: JSON.stringify("12345")






          share|improve this answer





















          • Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
            – Graham Davis
            Nov 21 '18 at 2:39


















          0














          Your controller action (that I am assuming is configured to accept POST requests)



          public string LoadChildrenAccounts(string parentID)



          accepts a bare string as parameter but you are POSTing an object with a property of type string ({ "parentID": "12345" }).



          Try changing data: stringify({ "parentID": "12345" }) to data: JSON.stringify("12345")






          share|improve this answer





















          • Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
            – Graham Davis
            Nov 21 '18 at 2:39
















          0












          0








          0






          Your controller action (that I am assuming is configured to accept POST requests)



          public string LoadChildrenAccounts(string parentID)



          accepts a bare string as parameter but you are POSTing an object with a property of type string ({ "parentID": "12345" }).



          Try changing data: stringify({ "parentID": "12345" }) to data: JSON.stringify("12345")






          share|improve this answer












          Your controller action (that I am assuming is configured to accept POST requests)



          public string LoadChildrenAccounts(string parentID)



          accepts a bare string as parameter but you are POSTing an object with a property of type string ({ "parentID": "12345" }).



          Try changing data: stringify({ "parentID": "12345" }) to data: JSON.stringify("12345")







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 19 '18 at 16:25









          Alberto

          11.6k63444




          11.6k63444












          • Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
            – Graham Davis
            Nov 21 '18 at 2:39




















          • Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
            – Graham Davis
            Nov 21 '18 at 2:39


















          Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
          – Graham Davis
          Nov 21 '18 at 2:39






          Yes, there is a [HttpPost] attribute on the controller action. Tried your suggestion, but no luck :( I did however change the procedure to httpGet and it worked: [HttpGet] public string LoadChildrenAccounts(string id) { ***Code Stuff Here *** }
          – Graham Davis
          Nov 21 '18 at 2:39




















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