Questions on Kendo UI for jQuery Forum

5 answers

265 views

Hi,

I'm having some trouble getting the donut chart to work with multiple series when binding from remote data. Here's my code:

$("#projectTimeBreakdownDonutChart").kendoChart({

title: {

text: "Time by Team",

position: "bottom"

},

legend: {

visible: false

},

seriesDefaults: {

type: "donut",

overlay: {

gradient: "none"

},

labels: {

visible: false

}

},

series: [{

field: "data",

categoryField: "name"

}]

});

And here's the json I'm getting back from my controller

[{

"name":"Duration",

"data":[{

"category":"Team 1",

"value":5000

},{

"category":"Team 2",

"value":130

},{

"category":"Team 3",

"value":3

},{

"category":"Team 4",

"value":8

}]

}, {

"name":"Amount",

"data":[{

"category":"Team 1",

"value":72000

},{

"category":"Team 2",

"value":18000

},{

"category":"Team 3",

"value":300

},{

"category":"Team 4",

"value":670

}]

Thanks

Charts

answered on 18 May 2016

3 answers

80 views

[Solved] My last post dissapeared

I posted a question yesterday about how to remove the dirty indicator from a grid and the post has disappeared.

Why would that happen?

Thanks,

Reid

Grid

answered on 17 May 2016

19 answers

972 views

Bug with scrollbar position

Hello,

I discovered a bug with the grid's vertical scrollbar when dealing with asynchronous read call. Indeed, if you start moving scrollbar's slider with the mouse up and down, you'll end up firing a bunch of Transport.Read requests. If those requests are treated asynchronously (like most ajax requests), the grid seems to have some problem displaying the right data.

I did create this snippet to simulate the problem. If you take a look at my print screen, you'll notice that the displayed indexes are from 42401 to 42600 out of the 250 000 records. However, you'll also notice that the slider is almost at the bottom of the slider. Based on the __count value provided to the grid, the slider position for those indexes should be somewhere near the top of the scrollbar (about 20%).

This image alone is enough to confirm a problem with the grid scrollbar. However, the real problem is not the slider position but the displayed data itself. Indeed, by releasing the slider at this position I was expecting the indexes over 230 000 to be displayed but it's not the case.

Is there a workaround to fix this?

Best regards,

Simon

Grid

answered on 17 May 2016

4 answers

385 views

Retrieve validation errors programatically

I was wondering if there is any way to retrieve all the problematic cells that the validation scripts are flagging? Sometimes users will have hundreds if not thousands of rows, and many columns, and I'd like to be able to give them a list of problematic cell coordinates so that they don't have to hunt through the UI. Is this possible?

Spreadsheet

answered on 17 May 2016

2 answers

222 views

Numeric format lost on import

I'm generating spreadsheets server-side, and with the Kendo spreadsheet now available, would like to make those visible in the browser rather than having the client download the file. The spreadsheets are being created by the open source EPPlus library. I'm not having difficulty showing the spreadsheet, but it's displaying incorrectly.

When doing a server-side import, the number formatting in the cells is lost during the ToJson call back to the client. This can be seen in the Server Import/Export Demo as well. The correct numeric values are present, but their display is wrong.

I'm sending the data back to the server with

public ActionResult GetSpreadsheet(string fname)

{

Stream stream = ReportsController.GetStreamFromCache(fname);

if (stream != null)

{

Workbook workbook = Workbook.Load(stream, Path.GetExtension(fname));

return Content(workbook.ToJson(), MimeTypes.JSON);

}

return new EmptyResult();

}

I've attached a spreadsheet that is showing the problem. It displays correctly in Excel on opening.Oddly enough, I haven't seen anyone mention this on the forums, so I'm wondering if it's something with my spreadsheets.Ideally, I'd use the Workbook object on the server to create the spreadsheets, but we have entirely too many already written to convert.

Thanks for any help you can give.

Spreadsheet

answered on 17 May 2016

6 answers

1.1K+ views

Datepicker to select values for multiselect

I need the ability pick values for a multiselect but instead of the dropdown that gave you a list of values to pick from, I would like to let the user pick multiple dates using the datepicker calendar control.

So instead of the dropdown list that is part of the multiselect can we use a calendar datepicker instead?

If so, a quick example would be much appreciated.

Thanks
Jason

MultiSelect

answered on 17 May 2016

9 answers

698 views

[Solved] Force Date axis not to aggregate values?

Hi

I have a data source of numeric value for every hour
Line chart automatically aggregates it by day where I actually have space for every data point (and yes, users want to see them)
http://70.43.83.4/test/html5/kendo.html

When I set baseUnit manually to "hours", the labels on the axis would be a mess.
1) Tried my luck with setting baseUnitStep to 24 but that would again aggregate/hide the hourly points.

2) Tried Scatter chart
http://70.43.83.4/test/html5/kendos.html
there are other problems
a) Category axis messes up dates
b) Tooltip is visible only with mouse exactly on the marker (line chart uses x-axis-location comfortably)

3) Stock chart http://70.43.83.4/test/html5/kendost.html
a) also groups by date
b) messes up category axis when changing range

Is there a way of stop aggregating or aggregate on a different basis than categoryAxis labels?

Thanks.

Raido

Charts

answered on 17 May 2016

1 answer

407 views

kendo ui datasource mapping of the model fails

we would like to migrate our grid to Kendo UI grid and if it fits for us we will buy it. I tried to implement it, but I'm blocked with an issue. The id column works only if I provide 'id' instead of '_id' in the json and all the json property have to be the same as the model and column fild name.

For example if You change the 'title' filed to 'title2' and do the same in the column settings, the grid fails, there are empty columns. Or if I change the '_id' to 'id' the id column will contanins the values.

So for me it seems the mapping of the model fails, the 'from' doesn't work properly.

Check the example in jsbin: http://jsbin.com/welone/1/edit?html,css,js,output

Grid