Hi,

I've used the ASP.NET AJAX components for many years and am just starting to look at the UI for ASP.NET Core equivalents.

We have a large dataset (potentially hundreds of thousands of records) of historical data that we want to show in a paginated grid.The data retrieval is optimised for performance so we can retrieve any given page of data quickly, and aren't transferring large of amounts of data around unnecessarily.

In the ASP.NET AJAX grid we'd set the VirtualItemCount property which enabled the grid to initialise the pager correctly and show the total number of items and pages, and then respond to requests to retrieve the appropriate page of data in the NeedDataSource() event as the user navigated through the pages.

I can't see anything that would provide equivalent behaviour in the UI for ASP.NET Core grid though?

Thanks in advance,

Gary

Hi,

We have a grid where we set some datasource model defaultvalues. These then apply to hiddenfor fields on a popup editor template.

This works up to version 2018.3.1017 but does not work in 2019.2.619 and earlier.

Is there a different approach we can take which will work? Or is it a bug?

Grid

    .Editable(editable => editable.Mode(GridEditMode.PopUp).TemplateName("_AuthMembership"))

Grid DataSource

.DataSource(dataSource => dataSource
                        ...
                        .Model(model =>
                        {
                            model.Id(p => p.Id);
                            model.Field(p => p.cUsername).DefaultValue(ViewBag.Email);
                            model.Field(p => p.Id).Editable(false);
                        })

Editor Template contains

@Html.HiddenFor(model => model.cUsername)  ... but it is always null now with 2019.2.619.

Passing values around in ViewBag shows each page knows about value and it worked in 2018.3.1017.

We want to upgrade for newer controls - what can we do please?

Thanks,

Daniel.

     I am reviewing the .net core package for web app development and I am interested in the PDF viewer. I create PDF documents programmatically (C# / iText on the server) and was wondering if I could use a MemoryStream as a datasource for the PDF viewer without having to write the document to file first. Rendering from RAM would be much the preferred option.

Kind regards,

Paul S

I am experiencing an issue similar to the following thread:

https://www.telerik.com/forums/unresponsiveness-in-visual-studio

SSIS projects are unresponsive in Visual Studio 2019.  Saves take several minutes, and Memory/CPU spikes during the process.  The Telerik extensions must stay disabled when working with SSIS projects/packages.

Application: Visual Studio 2019 - Enterprise

Telerik Extension Information:

Telerik.CommonPackage - installed 5/13/19, version 1.2.0

    Using the latest versions of all Telerik Extensions (asp.NET, Core, MVC)

System Information: Windows Server 2016 Standard (64bit OS)

About "Microsoft Visual Studio 2019"

Microsoft Visual Studio Enterprise 2019 - Version 16.1.3

Microsoft .NET Framework - Version 4.7.03062

Please let me know if I can provide any additional information for you.

Hi,

i'm evaluating UI for ASP.NET Core for use in a new project. One of the requirements is WCAG 2.1 AA conformance, but I couldn't find a definite statement if it is supported or not. I found some statements about Kendo UI (https://www.telerik.com/kendo-vue-ui/components/accessibility/) and ASP.NET AJAX (https://www.telerik.com/aspnet-ajax/tech-sheets/accessibility-support) but nothing about ASP.NET Core. Also, when I hit the "Accessibility Support" link on https://www.telerik.com/support/aspnet-core I get redirected to a page that describes Kendo UI. Does this mean the Kendo UI statement holds true for ASP.NET Core too or is the link simply wrong?

Regards,

Matthias

Hello, I am trying to access client template values in Razor syntax like the below. pay.ID always return "#= data.ID #" instead of value. But @id inside html return the correct value.

<script id="GridCommandTemplate" type="text/x-kendo-template">

    @{
        var id = "#= data.ID #"
        var s = "#= data.StatusStr #";
        var userid = "#= data.UserId #";
        var data = ("#= data #");

        object pay = new Payment() { ID = id, UserId = userid };
    }

    <a class="dropdown-toggle k-button k-primary" data-toggle="dropdown">
        <i class="k-icon k-i-more-horizontal">@id</i>
    </a>

<ul class="dropdown-menu dropdown-user">
        <li>
            <a href="Payment/Details?id=#= data.id#" class="dropdown-item"><i class="k-icon k-i-eye"></i> Details</a>
        </li>

        @if ((await AuthorizationService.AuthorizeAsync(
       User, pay,
       PaymentOperations.Update)).Succeeded)
        {
            <li class="dropdown-divider"></li>
            <li>
                <a href="Payment/Edit?id=#= data.id#" class="dropdown-item"><i class="k-icon k-i-edit"></i> Edit</a>
            </li>
        }
     
    </ul>
</script>

I'm trying to add Group Headers to my grid, but can't get anything to display. Aggregate footers are fine, but headers just don't seem to work. Example grid...

@(Html.Kendo().Grid<PersonTimesheetSummary>()
                    .Name("grid")
                    .Columns(columns => {
                        columns.Bound(p => p.PersonCode);
                        columns.Bound(p => p.FullName);
                        columns.Bound(p => p.NoOfTimesheetDays).ClientGroupHeaderTemplate("#=sum#");
                    })
                    .DataSource(dataSource => dataSource
                        .Ajax()
                        .Aggregates(aggregates =>
                        {
                            aggregates.Add(p => p.NoOfTimesheetDays).Sum();
                        })
                        .Group(groups => { groups.Add(p => p.Company); groups.Add(p => p.Department); })
                        .Read(read => read.Action("GetPersonTimesheetSummary", "Person").Data("getGridParams")))
                )

I've tried this using the Html and tag helper formats with no success. I'm using version 2019.2.514.

I have added a date time picker to a kendo grid custom pop-up template. It shows up with out the Calendar and time selector icons. Attached is an image to describe this better.

This is where I am adding the date time to the template

Hello,

is it possible to configure a grid with SignalR binding and binding to remote data as fallback?

For example: The grid uses SignalR to show changes using SignalR immediately. If there is a SignalR failure the grid refreshes all 10s by itself, by requesting data from the controller.

I had in mind, that i call the read method with a timer. But i have no idea how to configure the read method to do both, SignalR and reading from the controller.

Or do i have to create a second view with a Grid binding to remote data and switch the views if SignalR is not available?

Thanks

Michael

Hi,

I'm so close I can taste it.

I have a razor page (we'll call Main) and it pops a windows from a button called AddItem.

That window, (AddItem) will pop another window from a button on it called AddFeature.

I can get the windows popping up just fine. However when I try to submit the form on the AddFeature window. I can't figure out how to close it afterward.

Bottom line is that when I click to save the new feature, the window does not close. The post happens and things get saved to the db, but it appears that my code to close the window does not get called. The code below is heavily redacted so there may be some typos but it should get the idea across.

The question remains, what's the right way to do this?

Any help would be great.

Code below: