Questions on UI for ASP.NET MVC Forum

3 answers

555 views

Listview Model Binding - NullReferenceException

Hi,

I'm trying to have my ListView bind to a model item, so that when postback occurs, the entries updated to the listview, are reflected in the associated model field.When I attempt this with the below code though, I receive a NullReferenceException from the view code that I've posted below. I've included the model also, as well as the stack trace. Any help with this one is greatly appreciated! Thanks!

Model:

public class CustomerCreateModel

{

#region private fields

private ICollection<CreateSecurityQuestionModel> _SecurityQuestions = new List<CreateSecurityQuestionModel>();

#endregion

[Required(AllowEmptyStrings = false), Display(Name = "First Name")]

public string FirstName { get; set; }

[Required(AllowEmptyStrings = false), Display(Name = "Last Name")]

public string LastName { get; set; }

public ICollection<SecurityQuestionModel> SecurityQuestions

{

get { return _SecurityQuestions; }

set { _SecurityQuestions = value; }

}

View Code:

@model CustomerCreateModel

<div class="form-group">

@Html.Label("Security Questions", htmlAttributes: new { @class = "control-label col-md-2" })

<div class="col-md-10">

<div style="clear: both;">

<a class="k-button k-button-icontext k-add-button" href="#"><span class="k-icon k-add"></span>Add new security question</a>

@(Html.Kendo().ListView<SecurityQuestionModel>(Model.SecurityQuestions)

.Name("SecurityQuestionsListView")

.TagName("div")

.ClientTemplateId("security-qa-template")

.DataSource(dataSource => dataSource

.Model(model => model.Id("Id"))

.PageSize(10)

.Create(create => create.Action("Create", "Customers"))

.Update(update => update.Action("Update", "Customers"))

)

.Pageable()

.Editable(e => e.TemplateName("QuestionAnswerEditor"))

)

</div>

ListView

answered on 13 Jan 2017

3 answers

223 views

[Solved] Upload Kendo component not validate format file

Hi,

I'm using the Kendo Upload component for MVC and I'm trying of validate the format for only upload .xlsx and .xls, but the validator doesn't work. I followed the example showed here http://demos.telerik.com/aspnet-mvc/upload/validation but the error persist.

I don't know why, please, your help is very important for us.

Regards,

Upload

answered on 13 Jan 2017

1 answer

261 views

Can this template be improved? (Conditional)

The template below works but it seems kind of goofy. Is there a better way to set the "Checked" value conditionally?

I can do it easily with a plain checkbox but I prefer to use the Kendo one for the styling.

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

<div class="tabOption">

# if (Selected) { #

@(Html.Kendo().CheckBox()

.Name("#:Id#")

.Checked(true)

)

# } else { #

@(Html.Kendo().CheckBox()

.Name("#:Id#")

.Checked(false)

)

# } #

<span>#:Name# </span>

</div>

</script>

General Discussions

answered on 13 Jan 2017

1 answer

465 views

New ASP.NET MVC Project - Kendo UI or Telerik

Pretty new to MS ASP.NET Web Application development

Installed Telerik MVC in VS CE2015

Now for New web project I see listed

ASP.NET Web Application
Kendo UI ASP.NET MVC 5 Application <- new option
Telerik ASP.NET MVC Application <- new option

Can someone explain the differences between "Kendo UI ASP.NET MVC 5" and "Telerik ASP.NET MVC" and which would be preferable for developing an intranet web application for dealing with data collected off of lab instruments. There will be a couple master/detail pages needed for concepts such as item test results (property result), specifications (property min/max) and standards (property min/max).

General Discussions

answered on 12 Jan 2017

4 answers

1.4K+ views

Updating Selected Item by Value using Javascript

I have a dropdownlist that I want to update using values saved in a modal window. I'm using the following:

function RebindOrganizations() {

var ddl = $('#OrganizationName').data("kendoDropDownList");

ddl.dataSource.read();

if (newOrganizationName != undefined) {

ddl.select(function (dataItem) {

return dataItem.value === newOrganizationName;

});

//ddl.value(newOrganizationName);

}

ddl.focus();

}

and neither the ddl.select nor the ddl.value statements do the trick. My newOrganizationName value is set correctly. The ddl.dataSource.read() statement executes correctly (i.e., my new Organization is in the list). Any ideas?

DropDownList

answered on 12 Jan 2017

1 answer

212 views

Export to Excel

Is there a way to export the schedule to excel ?

Scheduler

answered on 12 Jan 2017

1 answer

177 views

ListView Server-Side Validation

I currently have a ListView that I'm using to update database entries. I'm not getting any of the ModelState errors to display upon update. This is my main issue.

After reviewing the related tickets here, the solution seemed fairly simply. However, I'm having some issues, here is my ListView

@(Html.Kendo().ListView<OrderEntry.Models.OrderEntry.Product>()

.Name("ListView")

.TagName("div")

.ClientTemplateId("template")

.DataSource(dataSource => dataSource

.Model(model => model.Id(p => p.OrderID))

.PageSize(1)

.Read(read => read.Action("ProductReadAll", "Order", new { associatedOrderID = ViewBag.AssociatedOrderID }))

.Create(create => create.Action("ProductCreate", "OpsOrder"))

.Update(update => update.Action("ProductUpdate", "OpsOrder"))

.Events(e => e.Error("error"))

)

.Pageable()

.Editable(edit => edit.TemplateName("ProductEdit"))

)

My issue with this, adding the Error Event is causing an error stating that "error" (the name of whatever js function I use) is not defined in /Order/ProductDetailsRead. ProductDetailsRead is a method in my controller that is called to show the page this ListView is on. Why is the ListView looking in my controller for a js function? Haven't run into anything similar to this anywhere else in our website.

Are there any alternatives to showing modelstate errors when updating an item? Something more similar to grids?

ListView

answered on 12 Jan 2017

3 answers

210 views

Upload control in custom scheduler template

I have made a custom editor template for my scheduler and wish to be able to upload attachments to events.

I have added an upload control to the template and can successfully upload/delete files within one instance.

However, if I open the calendar event after creation, the previously uploaded files will not populate.

Is there a way to bind the upload control to the calendar event, as it contains all the attachments information?

Scheduler

answered on 12 Jan 2017

1 answer

65 views

InCell Edit poor performance on IE

Hello,

In my MVC grid I need to show a lot of columns (around 500) some of them are hidden others not. I'm using the InCell edit functionality to edit the data, on Chrome and Firefox everything works great but on IE after the cell loses the focus (after a value change) there's a huge delay. This delay is very annoying because the grid is unresponsive during this period.

Here is a demo with this behavior: http://dojo.telerik.com/oMUNo/5

I'm doing something wrong?

Thanks for the help!

Grid

answered on 12 Jan 2017

1 answer

205 views

[Solved] Problems inputting numeric values with comma as decimal separator

When I enter a value in a cell using comma as decimal separator, the value is interpreted as text.

I'm setting the culture to pt-Br before configure the widget.
Is there any other configuration to make? Or is this a limitation?

Spreadsheet

answered on 12 Jan 2017