or
1 answer
44 views
Good afternoon,
I have a FileManager that I want to perform server-side checks when directories or files are renamed or deleted. For instance, the directory has files that must be kept.
I was hoping to use the command event:
command - API Reference - Kendo UI FileManager - Kendo UI for jQuery
Which mentions:
- Fired when server command is executed (copy, move, delete or rename).
- The event is useful to get feedback when server commands has failed or succeeded and take additional actions based on the status.
How, in my delete or update server methods, do I force an e.status of fail, and e.response text explaining why the delete or update was rejected, so I can handle that in the client Command event?
I can see that I could throw an error and then capture that in the Error event, but is it possible to do similar with the Command event? The scenario I'm describing isn't really an error, just some validation that failed.
Kind regards,
Richard
Anton Mironov
Telerik team
answered
on
01 Sep 2025
1 answer
56 views
I am getting an error in telerik.ui.for.aspnet.core when I tried to built the code through Azure pipelines. This is the error:
D:\AgentAzServices\_work\9\s\NewHirePackage.csproj : error NU1301: The local source 'C:\Users\e245737\AppData\Roaming\Telerik\Updates\telerik.ui.for.aspnet.core.hotfix.2023.3.1114.commercial\wrappers\aspnetcore\Binaries\AspNet.Core' doesn't exist.
this is the second error, I am getting:
Error NU1301: The local source 'C:\Users\e245737\AppData\Roaming\Telerik\Updates\telerik.ui.for.aspnet.core.hotfix.2023.3.1114.commercial\' doesn't exist.
do I need to upgrade the "Telerik.UI.for.AspNet.Core" to higher version? Please see the attached picture, I dont see any higher version.
Thank you.
Lance | Senior Manager Technical Support
Telerik team
answered
on
21 Aug 2025
1 answer
18 views
Is there an example of reading a barcode from a PDF?
Yoan
Telerik team
answered
on
21 Aug 2025
1 answer
27 views
Kendo Treelist with Column Menu filter, Dropdowns and DatePicker is not showing fully. Its hiding and while scrolling also not working properly
https://netcorerepl.telerik.com/wzOWuMaW50DO1PTf30
1 answer
43 views
Hi Team,
Can we use 2020.1.114.440 kendo MVC dll in .net core application I am using same in .net framework 4.7.2.
Thanks & Regards
Amar Deep
Eyup
Telerik team
answered
on
11 Aug 2025
0 answers
25 views
It was my understanding that the Kendo editor is only designed to work with the content between the <body></body> tags and strip off <html>, <head>, and the <body> tags themselves but while I do see that those tags are indeed left out in the dialog editor a <meta> tag that I have in my <head></head> section is still being rendered (ref attached screenshot) which is not desired to the extent that I wish to re-apply the standard "format" to the saved body content changes that re-applies the standard prefix/suffix tags we use to define HTML formatted email templates (Ref below) where the {0} placeholder would represent the true editor content changes for the email template being posted back from client to be saved. However while this works I'm getting the original <meta> tag as part of the "content" when my expectation is, that because it is embedded in the <head> tag that it would get stripped out when the <body></body> internal content is rendered on the client. I am currently using the 2025.1.227 build of Telerik UI for ASP.NET Core.
private const string EmailTemplateFormat = "<html><head><meta content=\"text/html; charset=windows-1252\" /></head><body style=\"padding: 0; margin: 0;\">{0}</body></html>";
1 answer
24 views
The code below does not hit the read function so the details shows every detail row for each of the outer rows.(There should only be one detail row per outer row) I am following this example here: ASP.NET MVC Grid Detail Template Demo | Telerik UI for ASP.NET MVC which I use basically the same syntax for it and for an unknown reason theirs works and mine doesnt. My Javascript console gives me a 500 error which doesnt provide me with any way to resolve. Ive commented out stuff in the outer grid as I populate in the get method anyway. Can someone please look into this?
Outer grid:
<div id="RelatedAppearances-scheduling" style="margin-right:8px;border:none;padding:0;color:black; padding-bottom: 20px;">
<div id="RelatedAppearancesTopRowInfo" >
<div id="RelatedAppearances-Grid" style="width:99%;">
@Html.Kendo().Grid(Model.RelatedAppearanceList).Name("RelatedAppearancesGrid").Size(ComponentSize.Small).Editable(GridEditMode.PopUp).Resizable(r => r.Columns(true)).ToolBar(r =>
{
r.Create().Text("Add Appearance");
}
).Columns(col => {
col.Bound(c => c.FileNumber).Title("File Number").Width(175);
col.Bound(c => c.CourtDate).Title("Court Date").Width(150);
col.Bound(c => c.CourtTime).Title("Court Time").Width(150);
col.Bound(c => c.Purpose).Width(100);
}).Sortable().DataSource(dataSource => dataSource
.Ajax()
// .Read(r => r.Url("/Appearances/SchedulingInformation?handler=ReadEntity").Data("forgeryToken"))
// .Update(r => r.Url("/Appearances/SchedulingInformation?handler=UpdateEntity").Data("forgeryToken"))
// .Destroy(r => r.Url("/Appearances/SchedulingInformation?handler=DestroyEntity").Data("forgeryToken"))
// .Model(model =>
// {
// model.Id(p => p.AppearanceID);
// })
).ClientDetailTemplateId("RelatedAppearancesDetail");
</div>
</div>
</div>
Javascript detail grid:
<script id="RelatedAppearancesDetail" type="text/kendo-tmpl">
@(Html.Kendo().Grid(Model.RelatedAppearanceList).Name("innergrid_#=AppearanceID#")
.Columns(columns =>
{
columns.Bound(o => o.AppearanceDetails.AppearanceJudge).Title("Judge").Width(80);
columns.Bound(o => o.AppearanceDetails.AppearanceType).Title("Appearance Type").Width(80);
columns.Bound(o => o.AppearanceDetails.Outcome).Title("Outcome").Width(80);
columns.Bound(o => o.AppearanceDetails.ToTH).Title("To T & H").Width(80);
})
.DataSource(dataSource => dataSource
.Ajax()
.Read(read => read.Action("ReadRelatedAppearanceDetail", "Grid", new { AppearanceID = "#=AppearanceID#" })))
.Sortable()
.ToClientTemplate())
</script>
Razor method:
public JsonResult ReadRelatedAppearanceDetail(int AppearanceID, [DataSourceRequest] DataSourceRequest request)
{
var curAppearance = RelatedAppearanceList.Where(a => a.AppearanceID == AppearanceID).FirstOrDefault();
return new JsonResult(new[] { curAppearance }.ToDataSourceResult(request, ModelState));
}
Related Appearance Model:
public class RelatedAppearanceDTO
{
public int AppearanceID { get; set; }
public string FileNumber { get; set; }
public string CourtDate { get; set; }
public string CourtTime { get; set; }
public string Purpose { get; set; }
public string AppearanceType { get; set; }
public string CalendarRemarks { get; set; }
public string Outcome { get; set; }
public string OutcomeComments { get; set; }
public string ToTAndH { get; set; }
public RelatedAppearancesDetailModel AppearanceDetails { get; set; }
}
Related Appearance Detail Model:
public class RelatedAppearancesDetailModel
{
public int AppearanceID { get; set; }
public string AppearanceJudge { get; set; }
public string AppearanceType { get; set;}
public string CalendarRemarks { get; set; }
public string Outcome { get; set; }
public string OutcomeComment { get; set; }
public string ToTH { get; set; }
public string Minutes { get; set; }
public string Disposition { get; set; }
}
Ivaylo
Telerik team
answered
on
05 Aug 2025
1 answer
18 views
Hi, I'm referring to the article below:
In the article Asynchronous Mode Fallback is When Upload which is placed inside a form and configured for asynchronous operation.
I have done this, however after uploading some file (and failed since I didn't implement the controller) the form post still doesn't contain any Files.
Is there a specific to implement a fallback mechanism? a sample will be very helpful.
Ivaylo
Telerik team
answered
on
04 Aug 2025
1 answer
44 views
I have a nullable DateTime property in my view model, and I'm binding it to a DatePicker, with a custom date format like so:
@Html.Kendo().DatePickerFor(model => model.MyNullableDateTimeField).HtmlAttributes(new { @class = "form-control" }).Format("MM/dd/yyyy").ParseFormats("MM/dd/yyyy", "yyyy-MM-dd").DateInput(true)However, it displays like this:
And when I try to submit the form, I get a model validation error: "The value 'month/day/year' is not valid for <my property name>", and it is not possible for me to clear the text from the control at all.
If I input a valid date, it does submit correctly, but I need to be able to have a null value here. I tried
$("#MyNullableDateTimeField").data("kendoDatePicker").value(null) but that did not work. (also tried .val instead of .value)
Also, if there is anyway to have the DatePicker control submit the value in the more standard yyyy-MM-dd format, and just display it in the custom format, I would very much like to know that as well, as it would save me a lot of trouble. I don't understand why it submits a raw string in the "MM/dd/yyyy" format when a standard <input type="date"> will submit in a yyyy-MM-dd format and just display the value in the regular format.
Thanks!
Ivaylo
Telerik team
answered
on
04 Aug 2025
2 answers
16 views
hi, I'm using a combobox like the one below, when the model already has a country assigned, the combobox shows the Id instead of the Name.
At page load I can see that the URL Countries is requested, however this doesn't make a difference.
so the question is, how can I to set the initial value?. I've read examples but they all use a local datasource with bind-to, not a remote datasource. is this possible?
regards
<kendo-combobox for="CountryId" suggest="true"
datatextfield="Name"
datavaluefield="Id" filter="FilterType.Contains">
<datasource server-filtering="true">
<transport>
<read url="@Url.Action("Countries", "Common")"/>
</transport>
</datasource>
</kendo-combobox>
