Questions on Kendo UI for jQuery Forum

4 answers

281 views

[Solved] Connections with different colors according to data?

I need to make a diagram in which some connections are a different color, according to connection data. For example, I may have this as connections datasource:

[

{from: 1, to: 2, type: 1},

{from: 1, to: 3, type: 2},

{from: 2, to: 4, type: 1}

]

The resulting diagram should have connections with one stroke color (black) for the connections from 1 to 2 and 2 to 4, and a different stroke color (red) for the connections from 1 to 3 (as it is a different type).

I tried looking for something similar to `shapeDefaults.visual`, but it appears `connectionDefaults` only has this option for the content (text of the connection?), and not the stroke.

Is there a way to customize the stroke color (and preferably also dash) according to the connection data?

Thanks.

Diagram

answered on 31 Mar 2016

1 answer

1.4K+ views

How to disable catching by Kendo grid

In my grid i have enabled virtual scrolling and server side paging. but as i was scrolling i noticed sometimes when i scroll its not sending a new request to grab new data even if its reached page size. I think its because of catching of data. I tried to set catch property to false in my ajax call but it didnt fix my issue. I was wondering how this can be done. does Kendo can provide us with a functionality?

var dataSource = {

transport: {

read: function (options) {

var success = function (response) {

options.success(response);

};

var error = function (xhr, status, error) {

Ember.Logger.error('Fail response: ' + xhr.responseText + ' (status=' + xhr.status + ' ' + error + ')');

};

_this.get('PopulateGridData')(gridUrl, success, error, options.data, 'POST', true, true);

},

pageSize: gridPageSize,

schema: gridSchema,

serverPaging: true,

serverSorting: true,

serverGrouping: true,

serverFiltering: true,

};

var gridOptions = {

dataSource: dataSource,

columns: gridColumns,

editable: gridEditable,

pageable: {

refresh: true,

numeric: false,

previousNext: false,

},

height: gridHeight,

scrollable: {

virtual: true,

},

groupable: true,

filterable: true,

};

var grid = Ember.$("#kendo-grid").kendoGrid(gridOptions).data('kendoGrid');

_this.set('kendoGrid', grid);

Grid

answered on 31 Mar 2016

1 answer

211 views

dataSource.filter().filters is returning empty object {}

Hi,

I'm filtering my grid by using passing in a function to the operator like this:

dataSource.filter({
operator: setFilter
}
})

var setFilter = function(item) {

// iterate each item and return true or false if item matches value

}

this works perfectly and returns the correct view. However, I need access to the filters applied. Calling dataSource.filter().filters is returning empty object {}. Can you help please?

Grid

answered on 31 Mar 2016

1 answer

1.1K+ views

grid.setOptions error "Custom commands should have name specified"

When I call grid.setOptions I get the error message "Custom commands should have name specified".

This is the saved options (localStorage) I try to set:

Grid

answered on 31 Mar 2016

1 answer

351 views

Customize Connector and Connection Styles

Hi All,

I'm currently trialing KendoUI Professional for a project. Particularly I'm interested in the Diagram component however there are two critical elements I would like to customize.

I would like to make the connectors custom shapes. For example I would like certain shapes that can be connected to each other (based on business rules) to have unique connector shapes to make it clear to the user which shapes can be connected. At the moment there seems to be no way to do this out of the box (I acknowledge I can do colors though).

I would also like to make connections, curved/splines as per this feature request:
http://kendoui-feedback.telerik.com/forums/127393-telerik-kendo-ui-feedback/suggestions/6589127-diagram-connection-line-styling

I am pretty confident in my ability to add these modifications once I purchase a license and gain access to the Diagram source code however I'm wondering if anyone has has any experience trying to modify Diagram and whether these two customizations are realistic possibilities. Otherwise I may have to make something from scratch with SnapSVG or similar.

Just a tad worried about purchasing a license and then realizing that I can't get the desired result anyway.

Cheers

Chris

Diagram

answered on 31 Mar 2016

2 answers

680 views

ng-if and ng-show not working within custom column template

Hi. I'm trying to use the ng-if or ng-show tags within a custom column template. Unfortunately there seems to be no effect when I change the underlying variable.

gridColumns.push({

field: currentField.FieldName.replace(/ /g, "_"),

title: currentField.FieldName,

template: function (dataItem) {

return $scope.sampleNameTemplate(dataItem);

}

//,locked: true

, width: 250

, editor: $scope.textBoxCmtEditor

});

$scope.showQaQcSamplesEnabled = function () {

return $scope.showQaQcSamples;

};

In my grid there is no change regardless of what the $scope.showQaQcSamples variable is set to.

Any idea how I can get ng-if or ng-show to work correctly within a custom column template?

Thanks,

Ian

Grid

answered on 31 Mar 2016

1 answer

331 views

Grid with required date field

I'm trying to get a grid with a date field that must have a value. I have set the schema field validation to "required: true", but the grid still happily saved with nothing in the date field.

How to I get the grid to disallow saving if there is no value in the date field? (I don't need to set a range for the date, just make sure it is there).

Here is my attempt: http://dojo.telerik.com/aWAxO/2

Grid

answered on 31 Mar 2016

1 answer

78 views

Custom SchedulerDataSource Error

HI, I'm beginner for Telerik Platform with hybrid app. Sorry for this dummy question. I'm trying to load a scheduler with a web service which returns the following:

{"JSONDataResult":[{"Description":"Full Name","End":"\/Date(1458450000000-0500)\/","EndTimezone":null,"IsAllDay":true,"OwnerID":"1","RecurrenceException":null,"RecurrenceID":null,"RecurrenceRule":null,"Start":"\/Date(1458450000000-0500)\/","StartTimezone":null,"TaskID":"1","Title":"Full Name"},{"Description":"Full Name","End":"\/Date(1458450000000-0500)\/","EndTimezone":null,"IsAllDay":true,"OwnerID":"2","RecurrenceException":null,"RecurrenceID":null,"RecurrenceRule":null,"Start":"\/Date(1458450000000-0500)\/","StartTimezone":null,"TaskID":"2","Title":"Full Name"}]}

View model is the following, but it no works. What's wrong?. Thanks so much for your help.

var viewModel = kendo.observable({

isVisible: true,

tasks: new kendo.data.SchedulerDataSource({

batch: true,

transport: {

read: {

url: "http://xxx/RestServiceImpl.svc/json",

dataType: "json"

},

parameterMap: function(options, operation) {

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

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

}

},

schema: {

model: {

id: "taskId",

fields: {

taskId: { from: "TaskID", type: "number" },

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

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

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

startTimezone: { from: "StartTimezone" },

endTimezone: { from: "EndTimezone" },

description: { from: "Description" },

recurrenceId: { from: "RecurrenceID" },

recurrenceRule: { from: "RecurrenceRule" },

recurrenceException: { from: "RecurrenceException" },

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

}

})

});

Sorry for my writing . I'm trying to load a scheduler with a web service which returns the following:

Scheduler

answered on 31 Mar 2016

6 answers

144 views

Column Charting Legend

The legend colors are not matching the colors I have set for the individual series in my bar chart. I have read through several different forum topics that were supposed to have a solution, but none of them seem to work. I am using hexadecimal web colors and assigning them to Series.Color as specified in "http://docs.telerik.com/kendo-ui/api/javascript/dataviz/ui/chart#configuration-series.color". How can I CUSTOMIZE or SET the legend colors as well? I have read the following forum topics, but neither solve the problem.

http://www.telerik.com/forums/legend-color-change#Feo0EzBZ6E6jA3Ns-3WOjQ

http://www.telerik.com/forums/stack-bar-chart#HvKBqPuqP023kBLIQHAnrA

Charts

answered on 31 Mar 2016

13 answers

2.6K+ views

TypeError: Cannot read property 'destroy' of undefined

I'm using the 2014.2.909 nightly build and Angular-Kendo 1.03. When I create a grid that has filtering, grouping, or column ordering, I get this when navigating away from the view:

TypeError: Cannot read property 'destroy' of undefined
at N.ui.DataBoundWidget.extend.destroy (http://localhost:1391/Scripts/kendo/2014.2.909/kendo.all.min.js:22:31285)
at http://localhost:1391/Scripts/angular-kendo.js:214:28
at Scope.$broadcast (http://localhost:1391/Scripts/angular.js:12887:28)
at Scope.$destroy (http://localhost:1391/Scripts/angular.js:12545:14)
at Scope.$delegate.__proto__.$destroy (<anonymous>:812:29)
at cleanupLastView (http://localhost:1391/Scripts/AngularUI/ui-router.js:2243:26)
at updateView (http://localhost:1391/Scripts/AngularUI/ui-router.js:2269:11)
at eventHook (http://localhost:1391/Scripts/AngularUI/ui-router.js:2224:17)
at Scope.$broadcast (http://localhost:1391/Scripts/angular.js:12887:28)
at $state.transition.resolved.then.$state.transition (http://localhost:1391/Scripts/AngularUI/ui-router.js:1822:22)
Detected Kendo UI version: "2014.2.909"

I am not explicitly calling destroy, it is being handled by Angular or jQuery (I suspect the former since the grid is created via a Angular-Kendo directive). I have a page with many grids like this in various tabs and when leaving the page, I end up flooding my error logging with this same error for each behavior on each grid that causes it. I had suspected it was an issue with Angular-Kendo but the issue in that repo has been closed for a long time. I read in this thread what seemed like a similar problem since all of the widgets decend from the same base but switching to the nightly build didn't change anything. It does look like the widget is being destroyed by something, how do I get Kendo to stop trying to do it again?

Grid

answered on 31 Mar 2016