Questions on Kendo UI for jQuery Forum

2 answers

127 views

Lining Up Category Axes On A Multi-Axis Chart

I have a chart that has two category axes defined so I can display the category labels at the bottom of the chart when there are negative values. I am also setting min and max values for the second axis to avoid labels that show up as 0.25, 0.5, etc. when the series has small values like 1.

I would like to know if there is a simple way to line up the category axes of different series. If you see the attached image, you can see how the first series has a negative value and the second series starts below it.

Thanks.

Charts

answered on 14 Mar 2014

4 answers

983 views

Filtering inside dataBound event goes into recursion

Hi,
I'm trying to filter data inside dataBound event function, but it creates recursive calls to itself.
Could you tell me if this is a bug or am I doing something wrong?

Example: http://trykendoui.telerik.com/onAj
This is Event example from grid demos with modification inside "function onDataBound(arg)".

function onDataBound(arg) {
                    kendoConsole.log("Grid data bound");
                     var l_Data = this.dataSource;
                    l_Data.filter( {
                       field: "UnitsInStock",
                       operator: "eq",
                       value: 39
                       } );
                }

Grid

answered on 14 Mar 2014

8 answers

224 views

[Solved] Data-reload and tabstrip issue

Hi, I have a problem with navigating between two remote views, where one view has the data-reload=true attribute.

I have a remote view which show details of a message, you can then post this message on twitter. If the user didn't authorize twitter before, they get a message with that they have to do that. The user then has two options: authorize twitter or go back to the message. If back to the message is selected, the tabstrip in the data-reload view dissappears and reappears immediatly.

This problem wont happen when data-reload is set to false. But if i set it to false the data in the remote view wont update. when another message is selected.

How can I make sure the tabstrip doesn't flicker when navigating back to the remote view with the data-reload true attribute.

-EDIT:
When i go to the remote view with data-reload=true for the first time no flicker appears only for second time and the times after that.

General Discussions

answered on 14 Mar 2014

1 answer

166 views

Distinguish operations in change event.

Hi.

How can I distinguish operations in change event? I mean, how to recognize whether current operation is select (add new item) or delete (cross clicked)?
I know about select event, but I'm interested in change event only? Should I use external counter?

Thanks in advance.

MultiSelect

answered on 14 Mar 2014

3 answers

114 views

MinUnit not working

Hi,

I am trying a single example when the data of the chart is null or 0. But look at the X scale. It is 0, 0.2, 0.4...... etc..
I would like the scale to be 1, 2, 3, 4..etc

I have tried different ways but can acchieve this. I have used minUnit, min and doesn't work. It works using max, but that is not what i need.

Thanks
Jose

Charts

answered on 14 Mar 2014

3 answers

124 views

Populate Scheduler from JavaScript

Hi verybody.

I'd like to show a scheduler with fixed data from a JavaScript function.
I tried with this code, but I can only see the scheduler with the circular progress bar that runs forever.

// Defining the dataSource

var schedulerDataSource = new kendo.data.SchedulerDataSource({

transport: {

parameterMap: function (options, operation) {

if (operation !== "read" && options.models) {

return { models: kendo.stringify(options.models) };

}

},

schema: {

model: {

id: "Id",

fields: {

id: { from: "Id" },

title: { from: "Title", defaultValue: "No title", validation: { required: true } },

start: { type: "date", from: "StartDate" },

end: { type: "date", from: "EndDate" },

description: { from: "Description" },

calendarId: { from: "CalendarId", validation: { required: true } },

isAllDay: { type: "boolean", from: "IsAllDay" }

}

},

filter: {

logic: "or",

filters: []

}

});

// Pass data to the DataSource

schedulerDataSource.data = [{"CalendarId":"FirstCalendar","Id":"Id1","Title":"Test","Description":null,"IsAllDay":true,"StartDate":new Date(1318802400000),"EndDate":new Date(1319320800000)},{"CalendarId":"SecondCalendar","Id":"Id2","Title":"Second event","Description":null,"IsAllDay":true,"StartDate":new Date(1319407200000),"EndDate":new Date(1319493600000)}];

// Pass filters to the datasources

schedulerDataSource.filter.filters = [ { field: "CalendarId", operator: "eq", value: "FirstCalendar" },{ field: "CalendarId", operator: "eq", value: "SecondCalendar" }];

// Create the scheduler

$("#scheduler").kendoScheduler({

date: new Date("2014/03/13"),

startTime: new Date("2014/03/13 00:00 AM"),

height: $(document).height() - 30,

views: [

"day",

{ type: "workWeek", selected: true },

"week",

"month",

"agenda"

],

save: scheduler_save,

remove: scheduler_remove,

edit: scheduler_edit,

timezone: "Etc/UTC",

dataSource: schedulerDataSource,

resources: [

{

field: "CalendarId",

title: "Calendar",

dataSource: [ { text: "My first calendar", value: "FirstCalendar", color: "#9fc6e7" },{ text: "My second calendar", value: "SecondCalendar", color: "#7bd148" }]

}

],

});

Scheduler

answered on 14 Mar 2014

1 answer

114 views

Grid Update [WebMethod] error

Hi, i have test the sample at:

https://github.com/telerik/kendo-examples-asp-net/tree/master/grid-page-methods-crud

it's read the records ok, but if update a record, the record is save but i retrive this error:

Unhandled exception at line 134, column 1 in Function code

0x800a138f - Errore di run-time di JavaScript: Impossibile recuperare la proprietà 'Data' di un riferimento nullo o non definito

You have a solution for this error ?

thanks
Aurelio

Grid

answered on 14 Mar 2014

2 answers

566 views

[Solved] Removing Line Graph Circles

I'm trying to remove the little circles/symbols that are on the DataViz line graph. I currently modified the CSS so they don't get displayed in most of the browsers. Unfortunately the CSS hack didn't work when running the program on an Android phone. I saw in the API documentation (also: https://github.com/telerik/kendo-docs/blob/master/api/dataviz/sparkline.md#categoryaxisnoteslabelvisible-boolean-default-true) that said you could change this Note value to false, but I've been unable to do so. I believe the boolean attribute is: categoryAxis.notes.label.visible.

I'm using ASP.NET MVC so I'm unable to follow most of the sample code and examples b/c they are all in JavaScript (where examples are abundant). I've pasted part of the code that I'm using for one of my charts. I've tried adding ".Note ..." under ".categoryAxis", but it won't compile... I've tried several different methods for this attribute:

.CategoryAxis(axis => axis
.Categories(@Model.Label)
.MajorGridLines(lines => lines.Visible(false))
.Labels(labels => labels.Rotation(-45).Format("{0}").Skip(0).Step(2))
.Notes(n => n.Notes).Visible(false)

)

Any ideas on how to resolve this? Thanks in advance!

Charts

answered on 13 Mar 2014

3 answers

153 views

Current Kendo + RequireJS = iOS 7 tabstrip bug

Current Kendo releases produce a display bug in iOS 7 when used together with RequireJS.

We have been searching for the root of this problem for quite some time now and found the following source after a lot of testing:

Affected Kendo UI versions we tested:

2013.3.1324 and 2013.3.1511

Version 2013.2.1021, which is still the default in the Telerik AppBuilder, is NOT affected. With this version, everything works fine (even with current RequireJS versions).

Affected RequireJS versions we tested:

2.1.8 and 2.1.11

As far as we tested, this affects iOS 7 only.

To reproduce this, take these steps from the default AppBuilder Kendo UI Mobile project:

- update kendo.mobile.min.js and kendo.mobile.all.min.css to the desired version

- change the JS includes in the header in index.html to:

<script src="cordova.js"></script>

<script data-main="scripts/main" src="scripts/require.js"></script>

- strip all views from index.html except "tabstrip-home" (keep the layout)

- add main.js to scripts-folder:

require.config({

paths: {

'jquery': "../kendo/js/jquery.min",

'kendo': "../kendo/js/kendo.mobile.min"

},

shim: {

'jquery': {

exports: "jquery"

},

'kendo': {

deps: ["jquery"],

exports: "kendo"

}

});

// Expose the app module to the global scope so Kendo can access it.

var app;

require(

[

"app"

],

function (

application

) {

app = application;

app.init();

}

);

- change app.js to:

define(["jquery", "kendo"], function ($, kendo) {

var _kendoApplication;

return {

init: function () {

_kendoApplication = new kendo.mobile.Application(document.body, { layout: "tabstrip-layout"});

}

});

Thats it. Most basic version of the Test-Project with RequireJS.
As soon as you remove RequireJS, everything work fine again with iOS 7.

General Discussions

answered on 13 Mar 2014

7 answers

294 views

Data Schema for GeoJson data

I'm sorry, but after searching the DataSource API and this forum I am not finding out how to do the following:

I have a Node.JS server connected to a PostGIS database. It stores a number of rows that have a field called: outline that is a long GeoJSON object. In my model, I declare the simple fields (number, data, etc.) just fine. But is this correct for the JSON data. I will connect this to a KendoGrid, but I do not want the user to see it.

What I want him to do is sort, select, etc. based on the other fields, and then I will use the hidden GeoJSON outline (I will fetch it with the dataSource.data() method to get the values from it for map display.

But first, is this the "json" a correct type for the outline?

function buildDataModel() {

DataModel.data = new kendo.data.DataSource({

type:"json",

pageSize: 5000, //change to infinite when bug fixed.

transport:{

read:{

url:AppGlobals.serverURL + "Search",

dataType:"json"

}

},

schema:{

data:"results",