We would like to update a data source when a refresh button is clicked. In my javascript file I have the following declared:

var seriesData1 = [{"UnitNumber":"1010", "percent":85, "PMTYPE":"ODOMETER", "CompCode":"000-003"}, {"UnitNumber":"1010", "percent":75, "PMTYPE":"Days", "CompCode":"000-005"}];

I have this defined in my index.html:

<script>
function createChart() {
$("#chart").kendoChart({
theme: $(document).data("kendoSkin") || "black",
dataSource: {
data: seriesData1

},
title: {
text: "PMs Due"
},
legend: {
position: "top"
},
seriesDefaults: {
type: "column"
},
series: [
{
name: "% Due",
field: "percent"
}
],
valueAxis: {
labels: {
format: "{0}%"
}
},
categoryAxis: {
field: "CompCode"
},
tooltip: {
visible: true,
format: "{0}%"
}
});
}
</script>

When I click on the refresh button I am changing the values as follows in my javascript:

seriesData1 = [{"UnitNumber":"1010", "percent":35, "PMTYPE":"ODOMETER", "CompCode":"000-060"}, {"UnitNumber":"1010", "percent":75, "PMTYPE":"Days", "CompCode":"000-005"}];

$(".chart").data("kendoChart").redraw();

All that has changed is the percent and comp code of the first record .

On first load data is displayed without error however when the button is clicked to redraw the graph, the data is cleared and nothing is updated leaving a blank chart.

Is there anything else that I have to do to update the data source?

Following is an example of using facebook login for your kendo mobile webapp

http://www.grapto.com/publication/314/416 (web browser)
http://www.grapto.com/mobile/publication/314/416 (mobile)

the workaround on function LogIn() is for iPhone pinned on homescreen webapps. It will ask for login without poping the safari browser.
you may remove this workaround if you don't want to run your app on iPhone homescreen. Keep it if you want to publish with phonegap or other tools.

contact me for any further thoughts or if you need help implementing your own facebook apps with kendoui.

Hello, either there is a memory leak with grid's (when used with a filter) or I'm using it wrong.  I'm hoping that I'm using it wrong!  So I've created a jsfiddle that demonstrates the problem below.  The problem seems to be that when i reload the grid (by removing the grid first) it seems to leave the hidden k-filter-menu behind in the dom.  If you keep on clicking reload you will eventually run out of memory.  You can best see the problem if you load up firefox + firebug.  Inspect the grid and click reload, you'll notice the orphaned filter forms keep on adding up.

http://jsfiddle.net/nZ7j3/5/

ps. i didn't bother create a fiddle for it, but the same problem exists for any kendo object that maintains a hidden form element (i'm generalizing but i've definitely seen it on the DropDownList, ComboBox)

Hi All,
Can we use splitter for mobile web apps?

Hi folks, I have been trying to figure out why my KendoUI grid will not call the controller when attempting to batch save.  As part of my troubleshooting, I created a number of ActionResults with different parameters and breakpointing in each one, hoping that I would hit one of these breakpoints.  No matter what method that I use in my view to call the controller to save, nothing happens.

I have two cascading Kendo DropDownLists (which work fine), and upon the user selecting an item in the second DropDownList, I populate a KendoUI grid via JSON.  The user can then fill in the New Rate field to whatever they want, and finally click a save button to batch update.  The user can increase (and later decrease, when I implement it) a percentage across the board via a TextBox and button.

I come from the ASPX and WinForms world, so jQuery and javascript in general are not my strong suits.

Here is the pertinent source code.  I added some javascript alerts, to help troubleshoot.  Note that the Kendo and jQuery scripts are referenced in a layout page as follows:
       <script src="@Url.Content("~/Scripts/jquery-1.8.3.min.js")" type="text/javascript"></script>
       <script src="@Url.Content("~/Scripts/kendo.web.min.js")" type="text/javascript"></script>
       <script src="@Url.Content("~/Scripts/kendo.aspnetmvc.min.js")" type="text/javascript"></script>

ViewModel

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using MyReloWorks.Service.Models.ServiceManager;
using System.ComponentModel.DataAnnotations;

namespace MRW_MVC.Areas.SM.Models
{
    public class SFRRatesVM
    {
        [Key]
        public int SFRID { get; set; }
        public int ModeID { get; set; }
        public int DistanceID { get; set; }
        public int MeasurementID { get; set; }
        [Display(Name = "Distance (Miles)")]
        public string Distance { get; set; }
        public decimal CurrentRate { get; set; }
        [Display(Name = "Effective Date")]
        public DateTime EffectiveDT { get; set; }
        public decimal NewRate { get; set; }
    }
}

Controller:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MRW_MVC.Controllers;
using MyReloWorks.Service.Services;
using MRW_MVC.Areas.SM.Models;
using Kendo.Mvc.Extensions;
using Kendo.Mvc.UI;
using MyReloWorks.Service.Models.ServiceProvider;
using MyReloWorks.Service.Models.ServiceManager;

namespace MRW_MVC.Areas.SM.Controllers
{
    [Authorize(Roles = "SM-Manager-HHG")]
    public class SFREntryController : AuthenticationController
    {
        private ISMService _smSerivce;
        private IShipmentService _shipmentService;

        public SFREntryController(ISMService smService, IShipmentService shipmentService)
        {
            _smSerivce = smService;
            _shipmentService = shipmentService;
        }

        public ActionResult Index()
        {
            return View();
        }

        public JsonResult GetCascadeModes()
        {
            var modeList = _shipmentService.GetMode("HHG");
            return Json(modeList.Select(m => new { ModeID = m.ModeID, ModeName = m.ModeDesc }), JsonRequestBehavior.AllowGet);
        }

        public JsonResult GetCascadeMeasurements(string modes)
        {
            var modeID = Convert.ToInt32(modes);
            var measurementList = _smSerivce.GetMeasurementsByModeID(modeID);              
            return Json(measurementList.Select(m => new { MeasurementID = m.MeasurementID, MeasurementName = m.MeasurementValue }), JsonRequestBehavior.AllowGet);
        }

        public JsonResult GetRates([DataSourceRequest]DataSourceRequest request, string mode, string measurement)
        {
            IList<SFRRatesVM> vm = new List<SFRRatesVM>();

            if (mode != "" && measurement != "")
            {
                var modeID = Convert.ToInt32(mode);
                var measurementID = Convert.ToInt32(measurement);
                var rates = _smSerivce.GetSFRRatesByModeIDAndMeasurementID(modeID, measurementID);

                //place data into the ViewModel's format
                foreach (SFRDTO rate in rates)
                {
                    var temp = new SFRRatesVM();
                    {
                        temp.SFRID = rate.SFRID;
                        temp.DistanceID = rate.DistanceID;
                        temp.ModeID = rate.ModeID;
                        temp.MeasurementID = rate.MeasurementID;
                        temp.Distance = rate.DistanceInfo.DistanceDesc;
                        temp.CurrentRate = rate.Rate;
                        temp.EffectiveDT = rate.EffectiveDT;
                        vm.Add(temp);
                    }
                }
                
            }
            DataSourceResult result = vm.ToDataSourceResult(request);
            return Json(result, JsonRequestBehavior.AllowGet);
        }

        [HttpPost]
        public ActionResult UpdateRates()
        {
            throw new NotImplementedException();
        }

        public ActionResult UpdateRates(Models.SFRRatesVM request)
        {
            throw new NotImplementedException();
        }


        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult UpdateRates([DataSourceRequest] DataSourceRequest request, IEnumerable<SFRRatesVM> vm)
        {
            //TODO: handle multiple modes
            if (vm != null && ModelState.IsValid)
            {
                //get the old rates
                var oldRates = _smSerivce.GetLiftVanRates();

                // for each DistanceID, check the old rate to the "new" rate, and update accordingly
                foreach (SFRRatesVM rate in vm)
                {
                    var temp = new SFRDTO();
                    {
                        temp = oldRates.Where(r => r.SFRID == rate.SFRID).FirstOrDefault();
                        if (temp.Rate != rate.NewRate)
                        {
                            _smSerivce.UpdateSFRRate(temp, rate.NewRate);
                        }
                    }
                }
            }
            return Json(ModelState.ToDataSourceResult());
        }

        [HttpPost]
        public ActionResult UpdateRates(IEnumerable<SFRRatesVM> vm)
        {
            //TODO: handle multiple modes
            if (vm != null && ModelState.IsValid)
            {
                //get the old rates
                var oldRates = _smSerivce.GetLiftVanRates();

                // for each DistanceID, check the old rate to the "new" rate, and update accordingly
                foreach (SFRRatesVM rate in vm)
                {
                    var temp = new SFRDTO();
                    {
                        temp = oldRates.Where(r => r.SFRID == rate.SFRID).FirstOrDefault();
                        if (temp.Rate != rate.NewRate)
                        {
                            _smSerivce.UpdateSFRRate(temp, rate.NewRate);
                        }
                    }
                }
            }
            return Json(ModelState.ToDataSourceResult());
        }

        public ActionResult GenerateReport()
        {
            return View();
        }
    }
}

View:
@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<h2>Service Management - Manage SFR Rates</h2>

        <label for="modes">Modes:</label>
        @(Html.Kendo().DropDownList()
            .Name("modes")
            .OptionLabel("Select a mode..")
            .DataTextField("ModeName")
            .DataValueField("ModeID")          
            .DataSource(source =>
            {
                source.Read(read =>
                {
                    read.Action("GetCascadeModes", "SFREntry");
                });
            })
        )
    
        <label for="measurements">Measurements:</label>
        @(Html.Kendo().DropDownList()
            .Name("measurements")
            .OptionLabel("Select a measurement...")
            .DataTextField("MeasurementName")
            .DataValueField("MeasurementID")
            .DataSource(source =>
            {
                source.Read(read =>
                {
                    read.Action("GetCascadeMeasurements", "SFREntry")
                        .Data("filterMeasurements");
                })
                .ServerFiltering(true);
            })
            .Events(e => e.Change("measurementChanged"))
            .Enable(false)
            .AutoBind(false)
            .CascadeFrom("modes")
        )

    <br />
    <br />

        @(Html.Kendo().Grid<MRW_MVC.Areas.SM.Models.SFRRatesVM>()
            .Name("myGrid")
            .HtmlAttributes(new { style = "width:500px" })
            .Columns(columns => {
                columns.Bound(p => p.SFRID).Hidden();
                columns.Bound(p => p.Distance).Width(25);
                columns.Bound(p => p.CurrentRate)
                    .Format("{0:C}")
                    .Width(25)
                    .HtmlAttributes(new { style = "text-align: right" });
                columns.Bound(p => p.EffectiveDT)
                    .Format("{0:d}")
                    .Width(25);
                columns.Bound(p => p.NewRate)
                    .Format("{0:C}")
                    .Width(25)
                    .HtmlAttributes(new { style = "text-align: right" });
            })
            .Editable(editable => editable.Mode(GridEditMode.InCell))
            .Resizable(resize => resize.Columns(true))
            .AutoBind(false)
            .Events(events =>
            {
                events.SaveChanges("onSaveChanges");
            })
            .ToolBar(toolbar=> toolbar.Save())
            .DataSource(dataSource => dataSource
                .Ajax()
                .Events(events => events.Error("error_handler"))
                .Batch(true)
                .Model(model => 
                {
                    model.Id(p => p.SFRID);
                    model.Field(p => p.Distance).Editable(false);
                    model.Field(p => p.CurrentRate).Editable(false);
                    model.Field(p => p.EffectiveDT).Editable(false);
                    model.Field(p => p.NewRate).Editable(true);
                })
                .Update(update => update.Action("UpdateRates", "SFREntry").Data("getGridData"))
                .Create(create => create.Action("UpdateRates", "SFREntry").Data("getGridData"))
                .Read(read => read.Action("GetRates", "SFREntry").Data("getModeAndMeasurement"))
           )     
        )

        <br />
        <button id="btnGo" type="button">Go</button>               
        <br />
        
        @Html.Label("Adjust Rates (By %)")
        <br />
        <input type="text" id="txtRate" size="100" />    
        @Html.RadioButton("Adjust", true)Down
        &nbsp;&nbsp;    
        @Html.RadioButton("Adjust", false)Up
        <br />  
        <button id="btnAdjust" type="button">Adjust</button>                  

    <script type="text/javascript">
        function filterMeasurements() {
            return {
                modes: $("#modes").val()
            };
        }

        function getModeAndMeasurement() {
            var measurement = $("#measurements").val();
            var mode = $("#modes").val();
            return {
                mode: mode,
                measurement: measurement
            };
        }

        function measurementChanged() {
            var grid = $("#myGrid").data("kendoGrid");
            grid.dataSource.read();          
        }

        function error_handler(e) {
            if (e.errors) {
                var message = "Errors:\n";
                $.each(e.errors, function (key, value) {
                    if ('errors' in value) {
                        $.each(value.errors, function () {
                            message += this + "\n";
                        });
                    }
                });
                alert(message);
            }
        }

        $(function () {
            $("#btnGo").click(function () {
                alert('starting POST');
                $.ajax({
                    url: '@Url.Action("UpdateRates ", "SFREntry", Request.RequestContext.RouteData.Values)',
                    type: 'POST',
                    cache: false,
                    traditional: true,
                    dataType: "json",
                    contentType: "application/json",
                    data: kendo.stringify({
                        vm: $("#myGrid").data("kendoGrid").dataSource.view().toJSON()
                    }),
                    success: function () { window.alert('saved'); },
                    error: function() { window.alert('failed'); }
                });
                alert('ending POST');
            });
        });

        function getGridData() {
             var grid = $("#myGrid").data("kendoGrid");
             var vm = grid.dataSource.view();
             alert(vm);
             return vm;
        }

        //test to see if the save event fires
        function onSaveChanges(e) {
            var grid = $("#myGrid").data("kendoGrid");
            var data = grid.dataSource.view();
            var count = data.length;
            alert('In onSaveChanges');
            alert(count);
        }

        //fill in the New Rates column with the old rate, multiplied by amount in txtRate
        $(function () {
            $("#btnAdjust").click(function () {
                var adjustment = $("#txtRate").val() / 100;
                var grid = $("#myGrid").data("kendoGrid");
                var data = grid.dataSource.view();
                var count = data.length;
                for (var i = 0; i < count; i++) {
                    var currentRow = data[i];
                    var currentRate = currentRow.CurrentRate;
                    currentRow.NewRate = (currentRate + (currentRate * adjustment));
                };
                grid.refresh();
            });
        });
    </script>  

Thanks!

--Dan

I have a very simple listview bound to an items array in a very simple viewmodel.  The listview also has a click binding.  At first I thought that the click handler was not getting the dataitem but there is something else going on.  Before each item in the listview another row is being rendered.  Clicking this row gets us our dataitem.  Clicking the row with the item name in it does not.

Much easier if you see it so here is the jsfiddle: http://jsfiddle.net/HRuvg/

Clicking on the actual item doesn't work but if you click on the space above each item, it fires properly.   I must be missing something obvious because it doesn't get any simpler that this.

I am trying to change the DashType on each line in the series and it is not working... no matter what i change it to... it remains solid....

I was able to change the DashType on CategoryAxis and ValueAxis however... fyi... See sample code below:

@(Html.Kendo().Chart()
.Name("SalesDollarsChart")
.Title("Sales by Fiscal Week")
.HtmlAttributes(new { style = "height: 500px;  width: 1150px;" })
.Legend(legend => legend.Position(ChartLegendPosition.Bottom))
.ChartArea(chartArea => chartArea.Background("transparent"))
.Series(series =>
{
series.Line(new double[] { 15.7, 16.7, 20, 23.5, 26.6, 15.7, 16.7, 20, 23.5, 26.6 }).Name("TY Sales $").Color("Red").DashType(ChartDashType.LongDashDotDot);
series.Line(new double[] { 47.96, 48.93, 55, 54, 58, 47.96, 48.93, 55, 54, 58 }).Name("LY Sales $").Color("Blue").DashType(ChartDashType.Dot);
series.Line(new double[] { 75.7, 76.7, 80, 83.5, 86.6, 75.7, 76.7, 80, 83.5, 86.6 }).Name("TY On Hand $").Color("Green").DashType(ChartDashType.Dot);
series.Line(new double[] { 37.96, 38.93, 45, 44, 48, 37.96, 38.93, 45, 44, 48 }).Name("LY On Hand $").Color("Purple").DashType(ChartDashType.Dot);
})
.CategoryAxis(axis => axis
.Categories("5", "6", "7", "8", "9", "10", "11", "12", "13", "14")
.MajorGridLines(ml => ml.DashType(ChartDashType.Solid)))
.ValueAxis(axis => axis
.Numeric()
.Labels(labels => labels.Format("{0}%"))
.Min(0)
.Max(100)
.MajorUnit(10)
.MinorUnit(5)
.MajorGridLines(ml => ml.DashType(ChartDashType.Solid)))
)
.Tooltip(tooltip => tooltip
.Visible(true)
.Format("{0}%")
)
) 

Dear Kendo UI Team,

I have been studying the KendoUI Web examples and currently having problems getting data from a remote XML feed. Here's the example that I'm refering to Binding to XML Data and below is my code. I simply replace the source from local to Books.xml on the demo site.

Code:

When I load the page, I don't get any data. Also, how can I see errors? Is there some code examples to display errors? Please advice. Thanks.

Gabe

What is the proper way to edit items in a listview when using Kendo UI Mobile & MVVM?

I don't get the expected results when using the following:

HTML

<div id="itemsView"
    data-role="view"
    data-model="vm">

    <ul data-role="listview" data-bind="source: items" 
                             data-template="itemsTemplate">
    </ul>
    <script id="itemsTemplate" type="text/x-kendo-template">
    <li>
        #=Name#
    </li>
    </script>

    <input type="text" data-bind="value: newValue" />
    <button data-role="button" data-bind="click: update">update</button>
</div>​

JavaScript

var vm = kendo.observable({
    items: [{
        Name: "Item1"}],
    newValue: '',
    update: function(e) {
        var item = this.get("items")[0];
        item.set("Name", this.get("newValue"));
        //adding the follwoing line makes it work as expected
        kendo.bind($('#itemsView'), vm);
    }
});

kendoApp = new kendo.mobile.Application(document.body, {
transition: "slide"});​

I expect the listview to reflect the change to the Name property of that item. Instead, a new item is added to the listview. Examining the array reveals that there is no additional item, and that the change was made. (re)Binding the view to the view-model updates the list to reflect the change. Re-Binding after a change like this doesn't seem to make any sense.

Here is the jsfiddle: http://jsfiddle.net/5aCYp/2/

Note: This was originally posted on StackOverflow:
http://stackoverflow.com/questions/13739125

Hello,

I am wondering if the following behavior is intentional, and if there is a work-around.

The behavior I am describing can be seen on your TreeView demo at the following: 
http://demos.kendoui.com/web/treeview/images.html

When working with the tree on the right 'TreeView with sprites', notice how highlighting and expanding collapsing nodes works. Any node I click on gets highlighted orange as it is in a selected state, regardless of whatever node I expand/collapse the selected state stays on the originally selected node and no appearance changes occur with any other nodes. Play around with this for a little. This is all good.

Now...

1) Select the 'index.html' node (under the 'Kendo UI Project' folder node)
        2) Collapse the 'Kendo UI Project' parent folder node
        3) Collapse the 'My Documents' root node
        4) Notice how the 'My Documents' root node gets a grey highlight
        5) Expand the 'My Documents' root node (grey highlight remains)
        6) Expand the 'Kendo UI Project' folder node
        7) Notice how the grey highlight now is removed from the root node, and you can see the original 'index.html' node is still selected

Or another scenario:

1) Refresh the web page
        2) Without selecting any nodes, collapse all nodes on tree
        3) Expand the 'My Documents' root node
        4) Notice how the 'My Documents' root node gets a grey highlight



What is with the root node getting highlighted grey?

Is that intentional?

Either way, is there a workaround way to stop this from occurring?


Thanks for your help!
- Lee