Hello,
After a countless of attempts and adjustements, it is still impossible to retrieve data from a datasource (to load a grid).
I use an API Net.Core that returns JSON (with Odata nugets).
Everything is OK : json is return, callback is triggered (I check with Fiddler 4 of Telerik).
HTML side : I use Odata type for the Transport (I noticed it is impossible to get a callback from my API if I use "webapi" or anything else for instance).
HTML file (body):
<div id="example">
<div id="grid"></div>
<script>
$(document).ready(function () {
var dSource = new kendo.data.DataSource({
type: "odata",
dataType: "json",
serverPaging: true,
serverSorting: true,
pageSize: 12,
transport: {
read: "https://localhost:44363/api/students"
}
});
// read data from the remote service
dSource.read();
var data = dSource.data();
alert(data[0]);
});
</script>
</div>
I'm doing something like this in my css to adjust how the tabs on the render:
.k-tabstrip-items {
align-self: left;
background-color: green;
margin-top: 8px;
margin-bottom: 8px;
height: 32px;
border: 1px solid black !important;
width: 70% !important;
margin-left: 5%;
}
But I need to dynamically adjust the margin so sometimes the tabstrip is centered and sometimes it has the margin above.
So I want to conditionally add something like this:
.k--items-addon {
margin-right: auto;
margin-left: auto;
}
I don't see anything in the API that allows me to pass a class for the items so that I can dynamically change things in my template or class. Any ideas?

I am returning errors from server and catch it in kendo datasource error event.In this event I am trying to prevent close popup editor, but it works only first time, after clicking update second time, the window closes.
I searched a lot but could not find a solution
City = { InitializeGrid: function () { function LoadCities(url, success) { Common.serverRequest(url, success); } function UpdateCity(url, params, success) { Common.serverRequestParams(url, params, success); } function InsertCity(url, params, success) { Common.serverRequestParams(url, params, success); } function DeleteCity(url, id, success) { Common.serverRequestParams(url, id, success); } dataSource = new kendo.data.DataSource({ transport: { read: function (e) { LoadCities("/home/read", function (res) { e.success(res); }); }, update: function (e) { UpdateCity("/home/update", e.data, function (res) { var grid = $("#grid").data("kendoGrid"); if (res.success) { grid.dataSource.read(); } else { e.error("", "", res.error); grid.cancelChanges(); } }); }, create: function (e) { InsertCity("/home/insert", e.data, function (res) { var grid = $("#grid").data("kendoGrid"); if (res.success) { grid.dataSource.data(res.data); } else { e.error("", "", res.error); grid.cancelChanges(); } }); }, destroy: function (e) { DeleteCity("/home/delete", e.data, function (res) { var grid = $("#grid").data("kendoGrid"); if (res.success) { grid.dataSource.data(res.data); } else { e.error("", "", res.error); grid.cancelChanges(); } }); } }, error: function (e) { var grid = $("#grid").data("kendoGrid"); grid.one("dataBinding", function (e) { e.preventDefault(); // it occures only first time }); alert(e.errorThrown); }, pageSize: 20, schema: { model: { id: "Id", fields: { Name: { type: "string" }, EndDate: { type: "date" }, CreateDate: { type: "date" } } } } }); $("#grid").kendoGrid({ dataSource: dataSource, height: 750, selectable: "single", filterable: true, sortable: true, pageable: true, toolbar: [{ name: "newRecord", text: "New Record" }, { name: "editRecord", text: "Edit REcord" }, { name: "deleteRecord", text: "Delete" }], columns: [ { field: "Name", title: "Name" }, { field: "EndDate", title: "End Date", format: "{0:dd.MM.yyyy hh:mm}" }, { field: "CreateDate", title: "Create Date", format: "{0:dd.MM.yyyy hh:mm}" } ], editable: { mode: "popup", confirmation: false, template: kendo.template($("#popup_editor").html()) } }); $("#grid").on("click", ".k-grid-newRecord", function () { Common.gridAdd('grid', 'New Record'); }); $("#grid").on("click", ".k-grid-editRecord", function () { Common.gridEdit('grid', 'Edit Record'); }); $("#grid").on("click", ".k-grid-deleteRecord", function () { Common.gridDelete('grid'); }); }}
mvc controler
public class HomeController : Controller { List<City> cities; public string error { get; set; } public bool isSuccess { get; set; } = true; public ActionResult Index() { cities = new List<City>(); Session["city"] = cities; return View(); } public ActionResult Read() { var result = (List<City>)Session["city"]; return Json(result); } public ActionResult Update(City item) { var result = (List<City>)Session["city"]; if (string.IsNullOrEmpty(item.Name)) { error = "Name is required"; isSuccess = false; } result.Where(w => w.Id == item.Id).SingleOrDefault(s => s == item); return Json(new { success = isSuccess, error =error, data = item }); } public ActionResult Insert(City item) { var result = (List<City>)Session["city"]; item.Id = result.Count; item.Id++; if (string.IsNullOrEmpty(item.Name)) { error = "Name is required"; isSuccess = false; } result.Add(item); return Json(new { success = isSuccess, error = error, data = item }); } public ActionResult Delete(City item) { var result = (List<City>)Session["city"]; result.Remove(item); return Json(new { success = isSuccess }); } }Hi there,
How do you customise the image on the loading spinner for a Kendo Grid? I have an animated gif called 'loading.gif' that I wish to use instead of the default image currently.
Thanks, Mark

Hello,
I'm trying to implement kendo ui Scheduler .
But I realised that when I have many events in the same day I could see only two events and the others are collapsed on "three points".
When I click on the point it redirect me to Day view to see all the planned events.
I really want to remove the Day view and show only Month and Agenda Views.
It is possible to modify the code so when I click on the "three points" it redirect me to the Agenda view or could the Month view be resized dynamically depending on the number of the events ?
I tried to modify the CSS of the schudeler , but I didn't like the result
<style> .k-scheduler-table td, .k-scheduler-table th { height: 15.5em; } .k-scheduler-monthview .k-scheduler-table td { height: 15.5em; } .k-scheduler-timecolumn{ visibility:collapse !important; width:0 !important;} .k-more-events > span { margin-top: 0em; height: 20px;}div.k-more-events { font-size: 12px; height: 20px;}.k-scheduler-table td, .k-scheduler-table th { height: 1em; padding: .334em .5em; font-size: 100%;}</style>
Thank you in advance,
Best.

The following code to generate some rectangles with text items (see attached). What do I need to do to center each text item in its rectangle? I see there's a Layout, but I'm not sure how to combine rectangles, paths and groups into on of those.
var vLines = [5, 90, 175, 260, 345, 430, 515, 600];...$.each(vLines, function (index, value) { var group = getBox("line " + count++, "line " + count++, "line " + count++); group.transform(geom.transform().translate(10, value)); surface.draw(group);});....function getBox(text1, text2, text3) { var lineColor = "#9999b6"; var lineWidth = 2; var fontNormal = "12px Arial"; var group = new draw.Group(); var rect = new geom.Rect([0, 0], [160, 75]); var path = draw.Path.fromRect(rect, { stroke: { color: lineColor, width: lineWidth } }); group.append(path); if (text1) { group.append(new draw.Text(text1, new geom.Point(10, 10), { font: fontNormal })); } if (text2) { group.append(new draw.Text(text2, new geom.Point(10, 30), { font: fontNormal })); } if (text3) { group.append(new draw.Text(text3, new geom.Point(10, 50), { font: fontNormal })); } return group;}
Thanks
Hi, in our app, customers can create "custom Fields", and they can have any title they want.
Ideally, we always prefer to keep original values in javascript objects without encoding them, and use templates to encode if needed.
I have this very "limit" case, where the title of a columns is "<script>alert(1)</script>".
https://dojo.telerik.com/@foxontherock/imacAYOR/3
There are 3 cases, one with script, one with bold, both with templating, and the last one, bold without template (all default)
I am able to use a groupTemplate and headerTemplate to display them correctly.
But, I tried several methods to make the "columnMenu" appear correctly, I never found a solution.
I tried the "columnMenuInit", but the "alert" appear before the init event.
What I can do for now is set "menu=false" for these columns...
I don't want to "htmlEncode" the title property itself.
Is it possible to set a custom template on the kendoMenu that is displayed to choose the column, or is it possible to set a setting to let the menu encode the text?
For exemple, I can set a title like <b>mytext</b> and the text will appear as bold in the menu!
I think that you forgot to encode the title when the columnmenu is displayed.
The "encode" parameter correctly encode the value, but doesn't affect the title.
Maybe we should get a encodeTitle attribute?
I think that all of this should work correctly without any custom templates.
<note>
You can't say that you don't support it,
because, you did it correctly in the "drop zone" when grouping,
the title is htmlencoded without any need for custom template!!!
just try it with the "bold no template" column and you'll see.
</note>

var gridDataSource = new kendo.data.DataSource({ data: results, total: results.length, pageSize: 20, schema: { model: { id: "id", fields: { attributes: { type: "object" } } } }});//Build the Kendo UI gridvar kendoDataGrid = $("#dataGrid").kendoGrid({ dataSource: gridDataSource, columns: GetGridColumns(), scrollable: true, pageable: true, resizable: true, sortable: true, selectable: "row", navigatable: true, height: gridHeight, editable: false}).data("kendoGrid");Couldn't find any similar questions on the forum so hopefully someone can help :)
At the moment I have a pre-filter on my grid, which filters a column based on the role of the logged in user.
filter: {
filters: [{ field: "RSM", operator: "contains", value: manager}]
}
This pre-filters the grid when the logged in user is a manager. The issue I'm having is it will always pre-filter the grid even if the logged in user isn't a manager. So although the data itself won't be filtered, it will still appear as if the Manager column is being filtered.
https://ibb.co/FX3c6Qb
So is it possible to only apply the filter if the current user is a manager only? If it's just a regular user then don't apply the filter.
Thanks as always.
@using Kendo.Mvc.UI.Fluent@model PosPayAndBankRec.Models.TreasuryCreateModel@functions { private void AccountGridCommandDef(GridColumnFactory<PosPayAndBankRec.Models.TreasuryCreateItem> columns) { columns.Command(command => { command.Edit(); command.Destroy(); }).Width(160); columns.Bound(p => p.AccountID).Hidden(); columns.Bound(p => p.BankID).Hidden(); columns.Bound(p => p.BankName).Title("Bank").Width(120); columns.Bound(p => p.RamQuestBankNumber).Title("Bank #").Width(60); columns.Bound(p => p.AccountName).Title("Account").Title("Location"); columns.Bound(p => p.AccountNumber).Title("Acct #"); columns.Bound(p => p.PpStatus).Title("Positive Pay"); columns.Bound(p => p.BrStatus).Title("Bank Rec"); //columns.Bound(p => p.AccountFolderName).Title("Folder"); } private void AccountGridDataSource(DataSourceBuilder<PosPayAndBankRec.Models.TreasuryCreateItem> dataSource) { dataSource.Ajax() .Model(AjaxAccountDataSourceBuilder) .Sort(sort => sort.Add(p => p.BankName)) .ServerOperation(true) .Create(create => create.Action("Create", "Home")) .Read(read => read.Action("Read", "Home", new { id = Request.QueryString["id"] })) .Update(update => update.Action("Edit", "Home")) .Destroy(destroy => destroy.Action("Delete", "Home")); //.Events(e => e.Error("error")); } private void AjaxAccountDataSourceBuilder(DataSourceModelDescriptorFactory<PosPayAndBankRec.Models.TreasuryCreateItem> model) { model.Id(p => p.AccountID); model.Field(p => p.AccountName); } private void AccountGridToolBarDef(GridToolBarCommandFactory<PosPayAndBankRec.Models.TreasuryCreateItem> toolbar) { toolbar.Create().Text("Treasury Request"); }}@{ ViewBag.Title = "Treasury Connections"; }@(Html.Kendo().Grid<PosPayAndBankRec.Models.TreasuryCreateItem>() .Name("Treasuries") .Columns(AccountGridCommandDef) .DataSource(AccountGridDataSource) .ToolBar(AccountGridToolBarDef) .Editable(c => c.Mode(GridEditMode.PopUp).Enabled(true).DisplayDeleteConfirmation(true).Window(window => window.Title("Treasury Request")).TemplateName("TreasuryPopup").AdditionalViewData(new { Banks = Model.Banks })) .Sortable() .Filterable() .Resizable(resize => resize.Columns(true)) .Reorderable(reorder => reorder.Columns(true)) .ClientDetailTemplateId("ContactDetails") .Pageable(p => p.Enabled(false)) .Scrollable(s => { s.Height(700); s.Virtual(true); }) )</script> <script id="ContactDetails" type="text/kendo-tmpl"> @(Html.Kendo().Grid<PosPayAndBankRec.Models.ContactDetailsModel>() .Name("Details_#=BankID#") .Columns(columns => { columns.Command(command => { command.Edit(); command.Destroy(); }).Width(160); columns.Bound(p => p.ContactName).Width(150); columns.Bound(p => p.ContactType).Width(100); //columns.Bound(p => p.ContactEmail).Width(150); columns.Bound(p => p.ContactPhone).Width(100); columns.Bound(p => p.Description).Width(100); //columns.Bound(p => p.ContactNotes).Width(200); }) .ToolBar(p => p.Create()) .DataSource(dataSource => dataSource .Ajax() .Model(model => model.Id(p => p.BankID)) .Sort(sort => sort.Add(p => p.ContactName)) .ServerOperation(true) .Create(create => create.Action("Create", "Contact")) .Read(read => read.Action("Details", "Contact", new { id = "#=BankID#" })) .Update(update => update.Action("Update", "Contact")) .Destroy(destroy => destroy.Action("Delete", "Contact")) ) .Pageable() .Sortable() .Resizable(resize => resize.Columns(true)) .Reorderable(reorder => reorder.Columns(true)) .Editable(c => c.Mode(GridEditMode.PopUp).Enabled(true).DisplayDeleteConfirmation(true).Window(window => window.Title("Contact")).TemplateName("ContactPopup").AdditionalViewData(new { Banks = Model.Banks })) .ToClientTemplate()) .ToClientTemplate())</script>@using System.Collections@using PosPayAndBankRec.Models@model PosPayAndBankRec.Models.TreasuryCreateItem@{ ViewBag.Title = "Treasury";}<fieldset> <legend>Bank Account Info</legend><table id="table"> <tr> <th> Bank </th> <td> @(Html.Kendo().DropDownListFor(model => model.BankID) .Name("BankID") .OptionLabel("-- Select Item --") .DataTextField("BankName") .DataValueField("BankID") .DataSource(source => { source.Read(read => { read.Action("GetCascadeBanks", "Home"); }); }) ) </td> </tr> <tr> <th> Location </th> <td colspan="2"> <script type="text/javascript">// function ShowHide(chk,txt) // {// if ((document.getElementById(chk).checked))// document.getElementById(txt).style.display=''; // else // document.getElementById(txt).style.display='none';// } $(document).ready(function () { $("#AccountID").trigger("valueChange"); }); </script> @(Html.Kendo().DropDownListFor(model => model.AccountID) .Name("AccountID") .OptionLabel("-- Select Item --") .DataTextField("AccountName") .DataValueField("AccountID") .DataSource(source => { source.Read(read => { read.Action("GetCascadeAccounts", "Home") .Data("getBankID"); }) .ServerFiltering(true); }) .Enable(false) .AutoBind(false) .CascadeFrom("BankID") .Events(events => events.Change("onBankChange") ) ) </td> </tr> <tr> <td> </td> <th> Active </th> <th> Deactive </th> </tr> <tr> <th> Bank Reconcilliation </th> <td> @Html.EditorFor(model => model.BrActivationDate) </td> <td> @Html.EditorFor(model => model.BrDeactivationDate) </td> </tr> <tr> <th> Positive Pay </th> <td> @Html.EditorFor(model => model.PpActivationDate) </td> <td> @Html.EditorFor(model => model.PpDeactivationDate) </td> </tr></table></fieldset><fieldset> <legend>Contacts</legend>@(Html.Kendo().Grid<PosPayAndBankRec.Models.ContactDetailsModel>().Name("Contacts") .Columns(columns => { columns.Command(command => { command.Edit(); command.Destroy(); }).Width(160); columns.Bound(p => p.ContactName).Width(150); columns.Bound(p => p.ContactType).Width(100); //columns.Bound(p => p.ContactEmail).Width(150); columns.Bound(p => p.ContactPhone).Width(100); //columns.Bound(p => p.Description).Width(100); //columns.Bound(p => p.ContactNotes).Width(200); }) .ToolBar(p => p.Create()) .DataSource(dataSource => dataSource .Ajax() .Model(model => model.Id(p => p.BankID)) .Sort(sort => sort.Add(p => p.ContactName)) .ServerOperation(true) .Create(create => create.Action("Create", "Contact")) .Read(read => read.Action("GetCascadeContacts", "Home") .Data("getBankID")) .Update(update => update.Action("Edit", "Contact")) .Destroy(destroy => destroy.Action("Delete", "Contact")) ) //.AutoBind(false) .Pageable() .Sortable() .Resizable(resize => resize.Columns(true)) .Reorderable(reorder => reorder.Columns(true)) .Editable(c => c.Mode(GridEditMode.PopUp).Enabled(true).DisplayDeleteConfirmation(true).Window(window => window.Title("Contact")).TemplateName("ContactPopup")))</fieldset>public ActionResult GetCascadeContacts([DataSourceRequest] DataSourceRequest request, int BankID) { var ortcontacts = from contact in db.ORTContacts join bank in db.ORTBanks on contact.BankID equals bank.BankID where contact.BankID == BankID orderby contact.ContactName select new TreasuryCreateItem() { ContactID = contact.ContactID, ContactName = contact.ContactName, ContactEmail = contact.ContactEmail, ContactPhone = contact.ContactPhone, ContactType = contact.ContactType, ContactNotes = contact.ContactNotes, BankID = contact.BankID, BankName = bank.BankName }; return Json(ortcontacts.ToDataSourceResult(request)); }using System;using System.Collections.Generic;using System.Linq;using System.Web;using PosPayAndBankRec.Domain.Models;using System.ComponentModel.DataAnnotations;using PosPayAndBankRec.Models.Validators;namespace PosPayAndBankRec.Models{ public class TreasuryCreateItem { public int AccountID { get; set; } public int BankID { get; set; } public string BankName { get; set; } [Required] [UniqueAccountName("This bank is already named in the system.")] [DataType(DataType.Text)] public string BankAccountName { get; set; } [Required] [UniqueAccountName("This account is already named in the system.")] [DataType(DataType.Text)] public string AccountName { get; set; } public string AccountNumber { get; set; } public string RamQuestBankNumber { get; set; } public string ContactType { get; set; } public string Description { get; set; } public int ContactID { get; set; } public string ContactName { get; set; } public string ContactPhone { get; set; } public string ContactEmail { get; set; } public string ContactNotes { get; set; } public bool? HasPosPay { get; set; } public bool? HasBankRec { get; set; } public string BrStatus { get; set; } public string PpStatus { get; set; } public string BrStatusNotes { get; set; } public string PpStatusNotes { get; set; } public Nullable<System.DateTime> BrActivationDate { get; set; } public Nullable<System.DateTime> BrDeactivationDate { get; set; } public Nullable<System.DateTime> PpActivationDate { get; set; } public Nullable<System.DateTime> PpDeactivationDate { get; set; } public List<ORTBank> Banks { get; set; } } public class TreasuryCreateModel { public List<ORTBank> Banks { get; set; } public List<ORTAccount> Accounts { get; set; } public List<ORTContact> Contacts { get; set; } public IEnumerable<TreasuryCreateItem> TreasuryCreateItems { get; set; } }}<script type="text/javascript"> function onBankChange(e) { var BankID; var bankDropdown = this; var contactGrid = $("#Contacts").data("kendoGrid"); // Set BankId to the selected id of the bankDropDown BankID = $.map(this.select(), function (item) { var dataItem = bankDropdown.dataItem(bankDropdown.select()).Id; }); // Read the datasource again contactGrid.dataSource.read(); } function getBankID() { return { BankID: $("#BankID").val() }; } function setPopupDimensions(ev) { window.setTimeout(function () { $(".k-edit-form-container").parent().width(800).height(400).data("kendoWindow").center(); }, 100); } </script>