Implement Recurrence Rule Parser helper that uses the Scheduler recurrenceRule string and parses it in a usable format on the server.

There is already a similar helper for Telerik UI for ASP.NET Ajax.

Due to changes in the ASP.NET Core framework and how the Authentication is implemented the MVC5 implementation of the SecurityTrimming option became obsolete. 

Hi, Any plan to release asp.core with angular 2 template like mvc5 with angular . 

The Menu TagHelper does not render correct links for its items when the asp-page attribute is used.

With area it does not render a link at all:
<menu-item text="Home" asp-area="Products" asp-controller="Home" asp-action="About"></menu-item>

Without area it renders an incorrect link
<menu-item text="Login" asp-area="Products" asp-page="/Books"></menu-item>

I am looking for an extension to the Grid Columns fluent api that adds .Exportable(true or false).  Exportable(true) would be the default and indicate that this column does get exported when exporting to Excel (or PDF).  Exportable(false) would indicate that the column does NOT get exported.

Imagine the following Grid Definition:

@(Html.Kendo().Grid<Services>
    ()
    .Name("gridMain")
    .Columns(columns =>
    {
        columns.Bound(p => p.ServiceId).ClientTemplateId("rowNumTemplate").Title("Row").Width(50);
        //columns.Bound(p => p.ServiceId).ClientTemplateId("cmdsTemplate").Title("Cmds").Width(125).Media("(min-width: 768px)");
        columns.Bound(p => p.ServiceCode).Media("(min-width: 768px)");
        columns.Bound(p => p.ServiceId).ClientTemplateId("xsTemplate").Title("Service / Desc / Code").Media("(max-width: 768px)");
        columns.Bound(p => p.ServiceId).ClientTemplateId("serviceTemplate").Title("Service / Desc").Media("(max-width: 992px) and (min-width: 768px)");
        columns.Bound(p => p.ServiceName).Media("(min-width: 992px)");
        columns.Bound(p => p.ServiceDescription).Media("(min-width: 992px)");
        columns.Bound(p => p.ServiceActive).ClientTemplateId("activeTemplate").Width(60).Media("(min-width: 768px)");
        columns.Bound(p => p.ServiceId).ClientTemplateId("btnsTemplate").Title("View/Edit/Del").Width(150);
        //columns.Bound(p => p.ServiceId).ClientTemplateId("xsCmdsTemplate").Title("Cmds").Media("(max-width: 768px)");
    })
    .Scrollable(scrollable => scrollable.Endless(true))
    .Pageable(p => p.Numeric(false).PreviousNext(false))
    .ToolBar(t => t.Search())
    .Search(s => { s.Field(c => c.ServiceCode); s.Field(c => c.ServiceName); s.Field(c => c.ServiceDescription); })
    .Resizable(resize => resize.Columns(true))
	.ToolBar(t => t.Excel().Text("Excel"))
    .Excel(excel => excel
		.FileName("ABT_Services.xlsx")
		.Filterable(true)
	)
    .DataSource(dataSource =>
    dataSource
    .WebApi()
    .PageSize(Model.GridPageSize)
    .Model(model =>
    {
        model.Id(p => p.ServiceId);
    })
    .Events(events => events.Error("errorHandler").RequestEnd("gridMainRequestEnd"))
    .Read(read => read.Action("Get", "Services"))
    )
)

What I would like to do is define a column like the following:

        columns.Bound(p => p.ServiceId).ClientTemplateId("rowNumTemplate").Title("Row").Width(50).Exportable(false);

In the case above, the "Row" column would not be Exported to Excel.

If you take a closer look at the Columns definition above you will see that the configuration is implemented to support responsive page sizing.  Because the current implementation of Export to Excel does not allow an Exportable(true/false), I get these columns that I don't want in the exported Excel.

Although there appear to be workarounds (like keeping a second hidden grid -- a poor solution at best), none would be as useful to a Developer as defining an Exportable(true/false) as part of the Column configuration.

Thanks for considering my request.

We are building our product using an ASP.NET Core MVC project and are very excited to use the Kendo UI Sass Template.  We took a lot of time to integrate the Bootstrap Sass distribution into the project build process using Gulp and Node.js in Visual Studio to build and minify the Bootstrap Sass files so we have full control over the style and features included in our CSS files to maximize performance.

Part of this process was to make sure we used the same exact process used by Bootstrap to compile the Sass into the CSS so our process did not introduce bugs because the Sass was compiled and minified using different options than the Bootstrap team.

It would be greate if you could include options in the new project wizard to include the Kendo UI Sass template and the code necessary to build the CSS.  Additionally it would be ideal if your Sass  can be compiled and minified using the same options as Bootstrap so that if a team decides to combine and minify that code it will still work as expected.

A bonus would be if you allowed the template to also select to use Bootstrap Sass alongside the Kendo UI Sass so that a project like this can be setup quickly with minimal effort on the developers part.

Thanks for taking this into consideration,

Bryan

Using .Net Core 3.0

ToDataSourceResult raises an exception if the DataSourceRequest has Aggregates

the exception says that there is no constructor with the following signature:

Void Microsoft.CodeAnalysis.CSharp.CSharpCompilationOptions(
	Microsoft.CodeAnalysis.OutputKind, 
	Boolean, 
	String, 
	String, 
	String, 
	Collections.Generic.IEnumerable`1<String>, 
	Microsoft.CodeAnalysis.OptimizationLevel, 
	Boolean, 
	Boolean, 
	String, 
	String, 
	Collections.Immutable.ImmutableArray`1<Byte>, 
	Nullable`1<Boolean>, 
	Microsoft.CodeAnalysis.Platform, 
	Microsoft.CodeAnalysis.ReportDiagnostic, 
	Int32, 
	IEnumerable<KeyValuePair<String,Microsoft.CodeAnalysis.ReportDiagnostic>>, 
	Boolean, 
	Boolean, 
	Microsoft.CodeAnalysis.XmlReferenceResolver, 
	Microsoft.CodeAnalysis.SourceReferenceResolver, 
	Microsoft.CodeAnalysis.MetadataReferenceResolver, 
	Microsoft.CodeAnalysis.AssemblyIdentityComparer, 
	Microsoft.CodeAnalysis.StrongNameProvider, 
	Boolean, 
	Microsoft.CodeAnalysis.MetadataImportOptions, 
	Microsoft.CodeAnalysis.CSharp.NullableContextOptions
)

I traced the error down to the method that causes it :

CSharpCompilation CreateCompilation(SyntaxTree syntaxTree)

### Bug report

When the Dialog is configured with actions and the Content Security Policy is enabled, it throws an "Invalid template" error.

### Reproduction of the problem

1) Configure a Dialog widget with actions and set the CSP with the following content:

<meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline' https://kendo.cdn.telerik.com https://code.jquery.com; style-src 'self' 'unsafe-inline' https://kendo.cdn.telerik.com;" />

2) Open the browser console to review the error.

A Dojo sample for reproduction: https://dojo.telerik.com/ULOyazUC

### Expected/desired behavior

The Dialog should be rendered correctly without using the 'unsafe-eval' keyword in the "script-src" directive.

### Workaround

Insert the following script before the Dialog initialization:

 <script>
    kendo.ui.Dialog.fn._mergeTextWithOptions = function(action) { var text = action.text; if(text) { return kendo.isFunction(text) ? text(this.options) : text; } return ""; }
</script>

### Environment

* **Kendo UI version: 2023.2.606
* **jQuery version: 3.4.1
* **Browser: [all]

Need support for DataTable in Grid in ASP.NET Core 2.0

### Bug report

When Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation NuGet package is installed in Telerik UI for ASP.NET Core application, it throws an exception:

FileNotFoundException: Could not load file or assembly 'Microsoft.DotNet.InternalAbstractions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified.

### Reproduction of the problem

1. Create Telerik UI for ASP.NET Core MVC application (.NET Core version 6.0).

2. Install Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation NuGet package (version 6.0.5).

3. Turn on the Razor Runtime Compilation:

//Program.cs file

// Add services to the container.
builder.Services.AddControllersWithViews()
                .AddNewtonsoftJson(options => options.SerializerSettings.ContractResolver = new Newtonsoft.Json.Serialization.DefaultContractResolver())
                .AddRazorRuntimeCompilation();

4. Run the application and review the exception.

Attached is a runnable sample for reproduction.

### Workaround

Install Microsoft.DotNet.InternalAbstractions NuGet package (version: 1.0.0)

### Environment

* **Kendo UI version: 2022.2.510
* **jQuery version: 1.12.4
* **Browser: [all]

kendo.aspnetmvc.js does not account for server aggregates serialized with came case property names like it does for Groups.

Can the following code (minus the comments) be included in a future release to resolve this?

function translateAggregateResults(aggregate) {
            var obj = {};
            // LSS: support for camel case serialization
            obj[(aggregate.AggregateMethodName || aggregate.aggregateMethodName).toLowerCase()] = (aggregate.Value || aggregate.value);
            return obj;
        }
        function translateAggregate(aggregates) {
            var functionResult = {}, key, functionName, aggregate;
            for (key in aggregates) {
                functionResult = {};
                aggregate = aggregates[key];
                for (functionName in aggregate) {
                    functionResult[functionName.toLowerCase()] = aggregate[functionName];
                }
                aggregates[key] = functionResult;
            }
            return aggregates;
        }
        function convertAggregates(aggregates) {
            var idx, length, aggregate;
            var result = {};
            for (idx = 0, length = aggregates.length; idx < length; idx++) {
                aggregate = aggregates[idx];
                // LSS: support for camel case serialization
                result[(aggregate.Member || aggregate.member)] = extend(true, result[(aggregate.Member || aggregate.member)], translateAggregateResults(aggregate));
            }
            return result;
        }
        extend(true, kendo.data, {
            schemas: {
                'aspnetmvc-ajax': {
                    groups: function (data) {
                        return $.map(this._dataAccessFunction(data), translateGroup);
                    },
                    aggregates: function (data) {
                        data = data.d || data;
                        // LSS: support for camel case serialization
                        var aggregates = data.AggregateResults || data.aggregateResults || [];
                        if (!$.isArray(aggregates)) {
                            for (var key in aggregates) {
                                aggregates[key] = convertAggregates(aggregates[key]);
                            }
                            return aggregates;
                        }
                        return convertAggregates(aggregates);
                    }
                }
            }
        });

When a model property is decorated with data annotation attributes, the RadioButton HtmlHelper does not properly render the data-val and data-val-required attributes on the element.

Expected behavior:  Data attributes should be successfully rendered on the <input> element.

When assigning the Name of a Telerik UI control, the value specified is used for both the name and id attributes of HTML elements. If the value specified contains a period (ex. a property of a complex model property, ex. Model.Address.Line1) then the "name" attribute will still contain the period (ex. "Address.Line1") but because periods are invalid for the "id" attribute, the periods should get replaced with an underscore by default (ex. "Address_Line1"). Using HTML helpers, this appears to be happening correctly. Using Tag Helpers, on the other hand, does not appear to be sanitizing the id values and instead leaves the period, causing an invalid value to be used and inconsistent results when compared to the HTML Helpers.

Example using the ListBox component:

// Tag Helper, generates this: <select id="ComplexModelProperty.ListBoxTagHelper" name="ComplexModelProperty.ListBoxTagHelper">
<kendo-listbox name="ComplexModelProperty.ListBoxTagHelper" bind-to="new List<string>()"></kendo-listbox>

// HTML Helper, generates this: <select id="ComplexModelProperty_ListBoxHtmlHelper" name="ComplexModelProperty.ListBoxHtmlHelper">
@(Html.Kendo().ListBox()
  .Name("ComplexModelProperty.ListBoxHtmlHelper")
  .BindTo(new List<string>())
)

Example using the Button component:

// Tag Helper, generates this: <button id="ComplexModelProperty.ButtonTagHelper" name="ComplexModelProperty.ButtonTagHelper" type="button">
<kendo-button name="ComplexModelProperty.ButtonTagHelper">Image icon</kendo-button>

// HTML Helper, generates this: <button id="ComplexModelProperty_ButtonHtmlHelper" name="ComplexModelProperty.ButtonHtmlHelper" type="button">
@(Html.Kendo().Button()
      .Name("ComplexModelProperty.ButtonHtmlHelper")
      .HtmlAttributes(new { type = "button" })
      .Content("Image icon"))

I only tested with these two components to verify this wasn't an issue specific to the ListBox component, but I'm assuming this is a problem with any component when using Tag Helpers. After looking at some of the relevant code, I'm guessing this could be corrected by updating the GenerateId() method in the TagHelperBase class (ex. by calling something like GenerateIdFromName() that would handle sanitizing the value).

I also found this forum post from over two years ago reporting what appears to be this same issue. There was a reply that acknowledged the issue and offered a workaround "until this issue is fixed", however after two years I would think something like this would have already been fixed (a bug that applies to all Tag Helpers, results in invalid HTML being generated, and can be fixed by using a built-in .NET method that was created specifically for this purpose).

Allow HTML comments & other tags to be mixed inside kendo tags; eg. I would like to use a <asp-partial name="_template" required=false asp-if="@User.IsInRole("role")> to inject settings/configuration of the kendo component 

Hi Telerik Team

We think it might be very useful an component in telerik like this one https://fengyuanchen.github.io/cropperjs/  for rotate, crop, resize, zoom and move. with a picture box like https://ashleydw.github.io/lightbox/#videos-gallery

If you implement this we will very happy

Thank you

Since support for cancellation token on user vote:

https://feedback.telerik.com/aspnet-core-ui/1357637-duplicate-kendo-mvc-extensions-support-for-cancellationtokens

https://feedback.telerik.com/aspnet-mvc/1357593-todatasourceresultasync-should-support-cancellation-token

was declined and is unplanned.

I would like to implement it by myself.

However most of methods used by code is private or internal, so extending current one is difficult to achieve without copying a lot of existing methods and marking them public. It would be good make them part of public api so implementing own extension to ToDataSourceResult and ToTreeDataSourceResult would be possible. Currently it is not.

Kind Regards

Marcin

Hi

Would like to request to bind Treelist from Datatable with dynamic type

And Totreedatasocure to accomidate for dynamic datatable rather tha at row of static table.

Thank you