title: Syncfusion Grid Add button does not fire
body: <p>I have the grid update, delete functionality working, however the "add" button does not work(i.e I click the "add" button but the "insert" event is not fired). Would the community have inputs on what I could be doing wrong?</p>
  
  <p><strong>Settings.cshtml:</strong></p>
  
  <pre><code>@Html.AntiForgeryToken()
  &lt;ejs-grid id="GridNewKeywords" allowPaging="true" load="onLoad" toolbar="@( new List&lt;object&gt;() {" Add","Edit","Delete","Update","Cancel"})"&gt;
        &lt;e-grid-editsettings allowAdding="true" allowDeleting="true" allowEditing="true" /&gt;
        &lt;e-data-manager url="/Settings?handler=DataSource" insertUrl="/Settings?handler=Insert" updateUrl="/Settings?handler=Update" removeUrl="/Settings?handler=Delete" adaptor="UrlAdaptor" /&gt;
        &lt;e-grid-pageSettings pageCount="5" pageSize="5" /&gt;
        &lt;e-grid-columns&gt;
            &lt;e-grid-column field="KeywordId" headerText="Id" isPrimaryKey="true" width="0" allowEditing="false" /&gt;
            &lt;e-grid-column field="UserId" headerText="UserId" isPrimaryKey="true" width="0" allowEditing="false" /&gt;
            &lt;e-grid-column field="Value" headerText="Keyword" validationRules="@(new { required=true})" /&gt;
        &lt;/e-grid-columns&gt;
  &lt;/ejs-grid&gt;
  
  &lt;script&gt;
  function onLoad()
  {
      this.dataSource.dataSource.headers = [{ 'XSRF-TOKEN': $("input:hidden[name='__RequestVerificationToken']").val() }];
  }
  &lt;/script&gt;
  </code></pre>
  
  <p><strong>Settings.cshtml.cs:</strong></p>
  
  <pre><code>[ValidateAntiForgeryToken]
  public class SettingsModel : PageModel
  {  
    public async Task&lt;JsonResult&gt; OnPostInsert([FromBody]SyncfusionControlCrudModel&lt;Keyword&gt; syncfusionControlCrudModel)
    {
      var identityUser = await GetIdentityUserAsync();
      var keyword = new Keyword()
      {
        UserId = identityUser.Id,
        Value = syncfusionControlCrudModel.value.Value
      };
      ApplicationDbContext.Keywords.Add(keyword);
      await ApplicationDbContext.SaveChangesAsync();
      return new JsonResult(syncfusionControlCrudModel.value);
    }
  }
  </code></pre>