or
1 answer
130 views
I've been using the below code snippet to save a filtered grid (with paging) to an Excel file with no issues. Once I upgraded I'm getting the above error "kendo.util.encodeBase64 is not a function"
01.function saveExcel(e) {02. e.preventDefault();03. var dataUri = "data:text/plain;base64," + kendo.util.encodeBase64(JSON.stringify(e.data));04. kendo.saveAs({05. dataURI: dataUri,06. proxyURL: "@Url.Action("ExcelExport", "ControllerName")",07. forceProxy: true08. });09.}
Did this function go away or change? Is there a better way to save an Excel file that needs to pull more columns than that is on the grid, that is also filtered and has paging. Basically my MVC controller method does a data pull based on the filter of the grid.
Dimiter Topalov
Telerik team
answered
on
23 Feb 2017
2 answers
734 views
I'm trying to set a command button using a template, but when I used the example from http://jsfiddle.net/valchev/Q69by/15/, the template does not seem to be running and the column is not being displayed. I've created the following: http://dojo.telerik.com/@pnd@qad.com/AXIVU. Can anyone tell me why the first button is not showing up and why how to get it to change based on the first column being boolean yes, then to change the text to "stop job" and if it is false, change it to "Start Job".
Any help is greatly appreciated.
4 answers
163 views
The Angular 2 panel bar creates its contents again and again on every event, when its contents needs displayed. This seems not to hurt much, when the inner structure is merely a few simple DOM Elements. But what, if the embedded component expensive to be constructed (because it may need a server request) and possibly very complex (because it may be host to a sohphisticated spreadsheet component, which it is in my case)?
Here is an example (full source in Plunker here): assume you are nesting the expensive component in the panelbar, just like the examples suggest to do:
<kendo-panelbar> <kendo-panelbar-item [title]="'First Title'"> <template kendoPanelBarContent> <my-expensive-component></my-expensive-component> </template> </kendo-panelbar-item> <kendo-panelbar-item [title]="'Second Title'">...</kendo-panelbar-item></kendo-panelbar>
Initially, the panel bar just only the headers "First...", "Second"... when you open one of them, the content is created. That will take some while. When this is finished, the full content is visble. Now when you click on the "Second" panel, a strange thing happens: the second content is lazily created (that's ok) but also the first section is created again, even if it remains visible all the time. That is unexpected.
Even if the above behaviour is only a bug, I fear that the design of the PanelBar component is a bit too simplistic: whenever one opens / closes one of the panels in the stack, the inner component will be constructed, again and again and again ... can this be avoided?
If it would be only about the private data, one could think of a workaround, where the data is stored not in the component, but in a service, which gets injected. That would not necessarily result in beautiful code, but it may do the trick for the component's data. But what about inner complex DOM structure? My use case is, that inside the panel bar, I would like to put an Excel Spreadsheet (SpreadJS) - I would not just recreated the entire spreadsheet, on every show/hide event.
By the way - the same problem also applies to the Angular-Tab component. That one seems to have the identical create-from-template behaviour. Is there anything I can do about the frequent reconstruction of the components?
1 answer
62 views
I came across this issue when I was searching for a solution: https://github.com/telerik/kendo-ui-core/issues/2401
The issue is closed but it is not clear if it was fixed in a later release or not. It is definitely a bug.
Could you please tell me if it has been fixed, and if so, when the release will be? In the meantime, is there a workaround?
Thanks,
Jane
Ivan Danchev
Telerik team
answered
on
22 Feb 2017
1 answer
503 views
Hi,
Are there any limitations when executing 'preventDefault()' in the end Callback of the Sortable widget? Below is a snippet of my 'end' callback that Im having trouble with.
end: function(e) { if (e.oldIndex == e.newIndex) { e.preventDefault(); return false; } $.when(promptForDuration()) .done(function(result) {
alert("success: " + result) }) .fail(function() {
console.log(e); e.preventDefault(); return false; });}If the old and new index are the same, the 'preventDefault()' works fine, rolling back any chages made by the user. However if they are not the same I've created a custom KendoWindow to prompt for a new duration to be entered and returned using deferred promises (not sure if I've described that right).
The 'fail' callback is triggering and the console.log is printing the sortable event info:
Object { _defaultPrevented: true, action: "sort", draggableEvent: Object, isDefaultPrevented: (), item: A.fn.init[1], newIndex: 1, oldIndex: 0, preventDefault: (), sender: init, __proto__: Object }But still the 'preventDefault()' is not either not running or not having an affect of the Sortable widget.
Please advise on how this can be resolved.
Kind Regards,
Grant
Stefan
Telerik team
answered
on
22 Feb 2017
1 answer
2.2K+ views
I see that Kendo has a Dynamic Linq library that handles the paging, sorting and filtering for you for MVC apps. I was reading about it here. The following example is given:
<p>using Kendo.DynamicLinq;public class EmployeesController : Controller { [HttpPost] public ActionResult Get(int take, int skip, IEnumerable<Kendo.DynamicLinq.Sort> sort, Kendo.DynamicLinq.Filter filter) { var employees = _context.Employees.OrderBy(e => e.Employee_ID) .OrderBy(e => e.Employee_ID) .Select(e => new Models.Employee { EmployeeID = e.Employee_ID, FirstName = e.First_Name, LastName = e.Last_Name, Title = e.Title, BirthDate = e.Birth_Date }); return Json(employees.ToDataSourceResult(take, skip, sort, filter)); }}<br></p><p></p><p></p>
It seems to me that a problem with this approach is that there is no chance to do any mapping from the data entities which are returned from the database call to to a DTO entity. What I do in my app is execute a databaes call using EF and map the EF entity to an application entity. Is there a way I can still do this given the example above. In other words, I'd like the ToDataSourceResult function to create a Json document based on the mapped DTO entity and not the EF database entity.
Alex Hajigeorgieva
Telerik team
answered
on
22 Feb 2017
1 answer
193 views
Hello.
Recently I have following problem. In grid component I want to use orderBy function to sort data in my table (like in the example). Of course everything works fine. Problem coming out when I try to run my tests (npm run test). I get the following error: "XHR error (404 Not Found) loading node_modules/@progress/kendo-data-query/dist/npm/main.js". I saw that in my *.js file compiler added "kendo-data-query" to System.register array. Is there any solution for that problem? I hope that you can understand my problem here.
Rosen
Telerik team
answered
on
22 Feb 2017
1 answer
68 views
I have a requirement to toggle between the view in kendo UI scheduler, my view will be week but on checkbox click i want to change week view type between week and workWeek; how to do this?
Veselin Tsvetanov
Telerik team
answered
on
22 Feb 2017
2 answers
107 views
https://jsfiddle.net/VadimMalkov/1t6se0qq/
1. cann't drop .item on empty listview
2. placeholder moving on mouse over .item, but not on listview area
1. cann't drop .item on empty listview
2. placeholder moving on mouse over .item, but not on listview area
Stefan
Telerik team
answered
on
22 Feb 2017
7 answers
376 views
Is there any way to make kendo ui scheduler select multiple custom event templates across different groups in Horizontal grouping with ctrl + mouse down. Currently only one event or multiple events in same group are multiselect. Exact scenario is depicted in attached image.
