Questions on UI for ASP.NET Core Forum

7 answers

369 views

Hello,

Could you update your librairies to ASP.NET Core 3.0 GA (instead of 3.0 RC1) because there are some version conflicts when I want to install some nuget packages. For example, If I install the packages Telerik.UI.for.AspNet.Core 2019.3.917 and Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation 3.0.0 in my project, I've get the error :

Error NU1107 - Version conflict detected for Microsoft.CodeAnalysis.Common.

MyProject -> Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation 3.0.0 -> Microsoft.CodeAnalysis.Razor 3.0.0 -> Microsoft.CodeAnalysis.Common (>= 3.3.0)

MyProject -> Telerik.UI.for.AspNet.Core 2019.3.917 -> Microsoft.CodeAnalysis 3.0.0 -> Microsoft.CodeAnalysis.CSharp.Workspaces 3.0.0 -> Microsoft.CodeAnalysis.Common (= 3.0.0)

General Discussions

answered on 25 Dec 2020

3 answers

682 views

Doubleclick event in aspnet core grid

I have a aspnet core grid that currently has the following code set to select the current row:

.Events( events => events.Change("onRowSelect"))

The function works fine and is written as:

function onRowSelect(e) {

var row = this.dataItem(this.select());

.... do work here

)

The users have added a new requirement that the event must be a doubleclick event and I'm not sure how to proceed. Any help would be appreciated.

Thanks

Grid

answered on 25 Dec 2020

1 answer

299 views

Set datasouce of a child grid from the datasource of parent grid in Kendo UI for .NET core

I have this form:

<div align="center">

<div>

<button type="button" class="searchButton" id="search">Search</button>

</div>

<div class="col-md-12 row">

@(Html.Kendo()

.Grid<ProjectName.DataModels.Models.Customer>()

.Name("CustomerGrid")

.Columns(columns =>

{

columns.Bound(e => e.CustomerId);

columns.Bound(e => e.SomeCustomerColumn);

})

.Sortable()

.Pageable()

.Scrollable()

.Filterable()

.ClientDetailTemplateId("OrderDetails")

.HtmlAttributes(new { style = "height:430px;" })

.AutoBind(false) // Don't load the data yet because I'll need to supply parameters for the fetch

.DataSource(dataSource => dataSource

.Ajax()

.PageSize(20)

.Read(read => read.Action("GetCustomersAsync", "Customer"))

)

.Events(events => events.DataBound("dataBound"))

)

<script id="OrderDetails" type="text/kendo-tmpl">

@(Html.Kendo()

.Grid<ProjectName.DataModels.Models.Order>()

.Name("OrderDetails_<#= CustomerId #>")

.Columns(columns =>

{

columns.Bound(o => o.ProductName);

columns.Bound(o => o.SomeOrderColumn);

})

.DataSource(dataSource => dataSource

.Ajax()

.PageSize(10)

)

.AutoBind(false)

.Pageable()

.Sortable()

.ToClientTemplate()

)

</script>

</div>

<script type="text/javascript">

function dataBound() {

this.expandRow(this.tbody.find("tr.k-master-row").first());

}

$("#searchButton").on("click", function () {

var startDate = $("#startdate").data("kendoDatePicker").value();

var endDate = $("#enddate").data("kendoDatePicker").value();

// How to load the customerGrid here by sending over the startDate and endDate? They are set from Kendo Date Pickers.

// How to load the child grid: OrderDetails_123 by using the datasource used by the parent grid?

});

</script>

And a method in the 'Customer' controller:

public async Task<ActionResult> GetCustomersAsync([DataSourceRequest] DataSourceRequest request, DateTime start, DateTime end)

{

var consolidatedData = GetDataForParentAndChildGrid(start, end);

return Json(new[] { consolidatedData }.ToDataSourceResult(request));

}

private ConsolidatedDataModel GetDataForParentAndChildGrid(DateTime start, DateTime end)

{

var testData = new List<CustomerData>();

// Gets required data with those dates filter and does a lot of mathematical calculations on them

testData.Add(new CustomerData

{

CustomerId = "123",

SomeCustomerColumn = "Blah blah",

Orders = new List<OrderData>()

{

new OrderData{

OrderId = "123ABC",

CustomerId = "123",

SomeOrderColumn = "Blah Blah Blah"

}

});

var consolidatedData = new ConsolidatedDataModel()

{

Data = testData

};

return consolidatedData;

}

After I click the "Search" button (which will take into account the start and end date fields to fetch the data), I'd like to update the 'dataSource' for the parent grid and the child grid. As you can see, the data I need for the parent grid already has data that I need for the child grid so I cannot do a new action call to populate the child grid. How do I accomplish this?

Please help.

Thank You!

Grid

answered on 24 Dec 2020

1 answer

322 views

Failed to execute command | When trying to convert ASP.NET Core Project to a Telerik Project

I have an ASP.NET Core (.NET 5) project open in Visual Studio 2019 (16.8.3) but when I try to convert it to a Telerik Project, I receive the following error. What's the best way to solve this?

Failed to execute command.

System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.KendoUI.ASP.NET.Core.VSX.Wizards.ConvertWizard.GetPropertyValue(String propertyName)
at Telerik.VSX.WizardEngine.Controls.WizardControlBase.PopulateCollectedValues(IPropertyDataDictionary gatheredData)
at Telerik.VSX.WizardFramework.Pages.DynamicPageController.GetData()
at Telerik.WizardFramework.Wizard.GetCurrentPageData()
at Telerik.WizardFramework.Wizard.UpdateNavigation()
at Telerik.WizardFramework.Wizard.EnsureInitialized()
at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CreateWizard(IWizardContext wizardControlContext, IDispatcher dispatcher, IWizardUI ui)
at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CollectData(IDispatcher dispatcher)
at Telerik.VSX.WizardEngine.ScenarioManagement.ScenarioDefinitionExecutor.CollectData()
at Telerik.VSX.ProjectManagement.StreamlinedProjectConfiguration.LaunchWizard(ProjectConfigurationType options)
at Telerik.VSX.ProjectManagement.StreamlinedProjectConfiguration.LaunchWizard(ProjectConfigurationType options, PrepareWizardDelegate prepareWizardDelegate, CheckPrerequisitesDelegate checkPrerequisites)
at Telerik.KendoUI.ASP.NET.Core.VSX.ProjectConfigurators.StreamlinedProjectConfiguration.StartConvertWizard()
at Telerik.KendoUI.ASP.NET.Core.VSPackage.CommandExecutor.Execute(UInt32 commandId)
at Telerik.VSX.VSPackage.PackageBase.CommandCallback(Object sender, EventArgs e)

General Discussions

answered on 23 Dec 2020

3 answers

383 views

Can't create a new project with net core 3.1

I can only create 2.0 and 2.1 projects for some reason. I've just downloaded and installed VS 2019 (with ASP.NET Core) and Telerik (using the Progress Control Panel) and it won't let me create a 3.1 project.

Installer and VS Extensions

answered on 22 Dec 2020

1 answer

350 views

Is it possible to add text or image between fields?

Hi,

I am able to bind the form to a view model, but I want to add some extra text or image between fields, is it possible?

Thanks,
Wesley

Form

answered on 21 Dec 2020

1 answer

107 views

Invalid Link

On this page:

https://www.telerik.com/aspnet-core-ui/listbox

There is a See Demo button that references this link:

http://demos.telerik.com/kendo-ui/listbox/index

This link is incorrect as it brings me to the "Kendo UI for JQuery". Instead, I expect it to bring me to the aspnet core demos

https://demos.telerik.com/aspnet-core/listbox/templates

This is quite confusing.

General Discussions

answered on 21 Dec 2020

2 answers

494 views

Can someone explain these options of DataSource in Grid?

Hi

I am having trouble understanding what some of these options do and having trouble to find documentation about it

@Html.Kendo().Grid<Model>().Name().Columns().DataSource(source => source.Ajax().PageSize(20).Model(m => model.Id(p =>p.Id)).ServerOperation(

false).Read(read => read.Action("","").Data("getId")

I don't understand what Model does in Datasource, ServerOperation(false), and .Data("getId").

I also have a endpoint

public ActionResult GetData([DataSourceRequest] DataSourceRequest, int id){ // some stuff }

I understand this is hit by the Action Method in read but I don't understand why most of the DataSourceRquest in empty (for instance page size is 0, when I would think it would be 20).

Grid

answered on 21 Dec 2020

4 answers

346 views

AppBar with MenuBar

Will the MenuBar work inside the new AppBar component? I've placed a menubar inside but the menu items disappear under the exterior appbar. Is there a workaround or solution to this?

General Discussions