Questions on UI for ASP.NET Core Forum

1 answer

576 views

binding two dimensional string data dynamically to kendo mvc grid

Hello, I have a two-dimensional string array that I want to bind to kendo mvc grid. It contains two rows. It's able to display the first row as Header, but it's no not showing the second row. Following is my code for the view which receives the said two-dim string array:

@using Kendo.Mvc.UI

@model string[][]

@if (Model != null)
{

var grid = Html.Kendo().Grid<dynamic>(Model)
.Name("importGridHeader")
.Columns(columns =>
{
var row = Model[0];
foreach (var col in row)
{
columns.Bound(col).Width(200);
}
}
)
.HtmlAttributes(new { style = "min-height: 450px; max-height:1250px;" })
.Sortable()
.Scrollable(s => s.Enabled(true))
.Resizable(r => r.Columns(true))
.Filterable()
.DataSource(dataSource => dataSource
.Ajax()
.ServerOperation(false)
);
grid.Render();
}

Grid

answered on 18 Apr 2018

1 answer

371 views

Scaffolder not appearing

This had previously worked Ok. Now when I add a controller or a new scaffolded item the scaffolder does not appear. In VS2017CE in Tools >Extensions and Updates it lists Telerik ASP.NET Core VSExtensions with Version 2018.1.215.2 as being installed.

The only documentation I could find:

https://docs.telerik.com/aspnet-mvc/getting-started/scaffolding

The requirements listed in the doc:

Requirements
Visual Studio 2013 (with Update 2 or higher) or Visual Studio 2015
ASP.NET MVC 4 or ASP.NET MVC 5
C#
Entity Framework Data Model

Not exactly applicable to my set up. We do not use EF but that hasn't been an issue in the past. Please advise.

Installer and VS Extensions

answered on 18 Apr 2018

1 answer

123 views

Dynamic model and validation for Grid

Hello!

I've got some problems with grid using dynamic model and model validation. I am working on app for viewing and updating sql tables. Everything works perfect except updating values. With dynamic model, I am not able to validate model like in microsoft documentation. ModelState.IsValid property is always false ... and that is a problem. (Edited cells in grid are marked as unsaved after update due to ModelState.IsValid == false). Could you help me ?

Thx,

Tom

Grid

answered on 18 Apr 2018

1 answer

103 views

Asp .net core Localised strings not changing back to english

Hi

I am using asp .net core globalisation as per below documentation:

https://docs.telerik.com/aspnet-mvc/getting-started/globalization

Currently we support two language 'English' and 'French'.

If my current language is 'English' and i change to 'french', the kendo UI gets translated properly.

Where as, current language is 'french' and i change to 'English', UI doesn't gets changed to English strings.

I checked both server and client side culture is properly set as English.

Is there something i am missing.

Thanks and Regards

Sujin

General Discussions

answered on 18 Apr 2018

5 answers

106 views

Grid Editor Pop-Up Ghosting

I have a condition where a grid that displays normally initially persists in showing the editor for the row on the bottom of the grid after you click the edit button (the first time). If you click the Edit button again the editor will pop up but you can still see the same editor on the page behind it on the bottom of the grid. The context and transactional part are fine but I cannot explain why this is happening. It renders fine with respect to popups on other grids in the solution, like 25 of them.

There is no mistake in the html structure with <divs> that might lead to something like this.

Any suggestions would be welcome.

Grid

answered on 17 Apr 2018

3 answers

309 views

Persist Grid's state func has troubles with DateTime

Hi all,

I'm trying to implement persist state functionality in you Grid. I've followed this example.

localStorage["kendo-grid-orders-options"] = kendo.stringify(grid.getOptions());

.

grid.setOptions(JSON.parse(localStorage["kendo-grid-orders-options"]));

Everything works fine except for one detail. When I set a filter on DateTime field and then refresh the page, it throws an internal error in method.

The binary operator GreaterThanOrEqual is not defined for the types 'System.DateTime' and 'System.String'.

It's caused by the date in FilterDescriptor in DataSourceRequest, which is sent as a string instead of a DateTime (pict2). When it's sent directly from the filter (not from the stored options), it works correctly (pict1). Am I able to store not just the filter value, but also the information about the type?

Grid

answered on 17 Apr 2018

2 answers

170 views

ComboBox items vertical alignment

Hello,

I have two ComboBoxes and Grid below them. The combo boxes are used to configure the grid's data source i.e. custom filtering/expanded filtering.

The issue is the following:

1. If I do not scroll the page the combobox options are displayed under the combobox.

2. If I scroll the page and then try to select something from the combobox options, the options are displayed over the grid.

I have attached 2 screen shots that show what is happening.

Thank you,

Martin.

ComboBox

answered on 16 Apr 2018

1 answer

127 views

Advice for Asp.net MVC Core

Hey guys

Are these topics sufficient to learn Asp.net MVC Core?
Which other advice would you recommend?
I would like to learn Asp.net MVC Core in advance.
Thank you for your valuable information

TOPICS:

Model-View-Controller
Razor
Model Binding
Tag Helpers
Layout, Section, ViewStart
Routing
Bower
Dependency Injection
Entity Framework
Razor Pages
View Components
Filters
Session
Working with Angular
ASP.NET Identity

General Discussions

answered on 16 Apr 2018

1 answer

314 views

MultiSelect group by but sort items in each group

I have a multiselect that contains a list of states. In the list there are states from different countries. I would like to be able to group the list by country but then have each group sorted by the state abreviation alphabetically. I'm having trouble finding some documentation on how to exctly do this.

Here is my multiselect:

@(Html.Kendo().MultiSelect()

.Name("primary_service_area")

.DataTextField("state_abreviation")

.DataValueField("state_abreviation")

.TagTemplate("<span class=\"multiselect-selected-value\">#= state_abreviation #</span>")

.ItemTemplate("<span>#= state_abreviation # - #= state_name #, #= country_code #</span>")

.DataSource(source =>

{

source

.Custom()

.ServerGrouping(true)

.Group(g => g.Add("country_code", typeof(string)))

.Transport(transport =>

transport.Read(read =>

{

read.Action("GetStates", "Company", new { country = "ALL"});

})

)

.ServerFiltering(false);

})

.Events(e => {

e.Change("multiSelect_Change").DataBound("multiSelect_databound");

})

.AutoClose(false)

.Value(Model.primary_service_area)

.HtmlAttributes(new { @class = "omni-multiselect" })

)

Here is my GetStates function:

public ActionResult GetStates(string country)

{

try

{

List<State> selectedStates = new List<State>();

if (country != null)

{

if (country == "ALL")

selectedStates = states.OrderBy(s => s.country_code).ThenBy(s => s.state_abreviation).ToList();

else

selectedStates = states.Where(s => s.country_code == country).ToList();

}

return Json(selectedStates.Select(s => new { state_abreviation = s.state_abreviation, state_name = s.state_name, country_code = s.country_code }));

}

catch (Exception ex)

{

return Json("");

}

MultiSelect

answered on 13 Apr 2018

1 answer

936 views

Project dependencies error

Hi there

I have imported the telerik mvc core project from visual studio 2017 in windows to Vs Code in Ubuntu

while installing the dependencies.i got this error

error : The local source '/home/opendev/Documents/projects/CoreApp02/C:/Program Files (x86)/Progress/Telerik UI for ASP.NET Core R1 2018/wrappers/aspnetcore/Binaries/AspNet.Core' doesn't exist. [/home/opendev/Documents/projects/CoreApp02/PharmaCoreApp02/PharmaCoreApp02.csproj]

How can i resolve this ?

Regards

Muhammad Arsalan Khan

Installer and VS Extensions

answered on 12 Apr 2018