Questions on UI for ASP.NET Core Forum

1 answer

553 views

Editing in a Grid in Hierarchy view

When in Hierarchy view .. how can I Add/Update/Delete both Master and Detail?

Grid

answered on 27 Apr 2022

1 answer

554 views

Kendo UI for jQuery's AutoComplete doesn't work; could it be due to a nullable string field?

I've been following this Kendo UI tutorial: Server filtering in ASP.NET Core AutoComplete Component Demo | Telerik UI for ASP.NET Core

But although I've made the changes I believe need to be to accommodate our data, no textbox for the user to type ahead into appears. Then looking at the code and especially at the model class, I realized that the field I'm trying to bind to the dataTextField property of kendo-autocomplete, is a nullable string. I'm wondering if that is what's causing the problems I'm experiencing? Here's some code snippets from my MVC view:

<div class="demo-section k-content">
	<h5>Find a location</h5>
	<kendo-autocomplete name="locations" style="width:100%"
		dataTextField="LocationCode"
		filter="contains"
		min-length="2">
		<datasource type="DataSourceTagHelperType.Custom" server-filter="true">
			<transport>
				<read url="@Url.Action("GetLocationByLocationCode", "SiteToSite")" data="onAdditionalData" />
			</transport>
		</datasource>
	</kendo-autocomplete>

	<div class="demo-hint">Hint: type "ca"</div>
	<script>
		function onAdditionalData() {
			return {
				text: $("#locations").val()
			};
		}
	</script>
</div>

Here's the Index action method from the controller:

public async Task<IActionResult> Index()
{
	BuildSelectLists();
	SiteToSite siteToSite = new SiteToSite();
	return View(siteToSite);
}

public void BuildSelectLists()
{
	ViewData["EmployeeList"] = new SelectList(db.PharmEmployees.Where(x => x.ActiveYn == true).OrderBy(y => y.EmployeeName).ToList(), "EmployeeId", "EmployeeName");
}

And finally here's a snippet of the PharmLocation model class, which includes LocationCode (which is the nullable string I'm binding the dataTextField to:

public partial class PharmLocation
{
    public PharmLocation()
    {
        PharmItemsReturnedExpiredFromLocs = new HashSet<PharmItemsReturnedExpiredFromLoc>();
        PharmLocation340BRegistrations = new HashSet<PharmLocation340BRegistration>();
        PharmLocationPaprogContracts = new HashSet<PharmLocationPaprogContract>();
    }

    public int LocationId { get; set; }
    public bool? ActiveYn { get; set; }
    public string? LocationCode { get; set; }
    public string? LocationType { get; set; }
    public string? Location { get; set; }

Could the fact that LocationCode is a nullable string be what's preventing the autocomplete from displaying a textbox that the user can type ahead into?

AutoComplete

answered on 27 Apr 2022

1 answer

451 views

How to multiple select a 'grouped' group of rows in a grid

In 'Grouped' grids .. is there a way to say 'select all items in one Group?

Grid

answered on 27 Apr 2022

2 answers

383 views

Kendo Menu - scrollable while items centered

Hey guys,

in my project i'm using a horizontal kendo menu for navigation through the app. Since the page has to be responsive I have to enable the scroll feature. I do prefer the centered styling and here I'm running into an issue.

<div style="display: flex; flex-flow: column;">
	<nav>
		<kendo-menu name="menuNavigation" style="justify-content: center;">
			<scrollable enabled="true" />
			<items>
				<menu-item text="@Namings.Request stellen">
					<sub-items>
						<menu-item text="@Namings.CustomerDepartment"></menu-item>
						<menu-item text="@Namings.CustomerPrivatPerson"></menu-item>
						<menu-item text="@Namings.CustomerClub"></menu-item>
					</sub-items>
				</menu-item>
				<menu-item text="@Namings.OpenRequests"></menu-item>
				<menu-item text="Laufende @Namings.Data.Loans"></menu-item>
				<menu-item text="Fahnenlager"></menu-item>
				<menu-item text="Kundendaten">
					<sub-items>
						<menu-item text="Personen">
							<sub-items>
								<menu-item text="@Namings.Crud.Read"></menu-item>
								<menu-item text="@Namings.Crud.Create"></menu-item>
								<menu-item text="@Namings.Crud.Update"></menu-item>
								<menu-item text="@Namings.Crud.Delete"></menu-item>
							</sub-items>
						</menu-item>
						<menu-item text="@Namings.CustomerClubs">
							<sub-items>
								<menu-item text="@Namings.Crud.Read"></menu-item>
								<menu-item text="@Namings.Crud.Create"></menu-item>
								<menu-item text="@Namings.Crud.Update"></menu-item>
								<menu-item text="@Namings.Crud.Delete"></menu-item>
							</sub-items>
						</menu-item>
					</sub-items>
				</menu-item>
				<menu-item text="Einstellungen">
					<sub-items>
						<menu-item text="Fahneneinstellungen & Preise"></menu-item>
						<menu-item text="Archivierte @Namings.Data.Loans"></menu-item>
					</sub-items>
				</menu-item>
			</items>
		</kendo-menu>
	</nav>
</div>

When the screen has smaller sizing, the left items of the menu will disappear without showing the scroll-to-the-left button. Scrolling to the right is still working. But the first items will be not reachable again.

This behaviour is caused by the marked line "justify-content: center". It enables that the menu items are centered but the scrolling functionality will be not working properly anymore.

I'm not the greatest css programmer, do you have an idea how to enable proper working scrolling for centered menu items?

Menu

Styling

updated answer on 26 Apr 2022

1 answer

604 views

Change background color on some entire tile containers

I have a tile layout with 11 containers in it. I need to set the background color of 3 of the tiles to a different color. I am using .NET Core tag helpers.

I tried adding a class attribute to one of the <container> tags, but it had no effect.

TileLayout

answered on 26 Apr 2022

1 answer

849 views

PDF Viewer - Custom toolbar with tag helper

Hey guys,

currently I'm using the pdf viewer with jquery initializing. In my case I have a custom configured toolbar setup with custom messages (because the german culture file doesn't translate the pdf viewer at all).

My viewer is looking like that (I have marked the lines which I've no idea how to implement these in tag helper syntax):

$('#pdfViewer').kendoPDFViewer({
	messages: {
		toolbar: {
			download: 'Herunterladen',
			pager: {
				first: 'Zur ersten Seite',
				last: 'Zur letzten Seite',
				next: 'Zur nächsten Seite',
				previous: 'Zur vorherigen Seite'
			},
			togglePan: 'Schwenkmodus',
			toggleSelection: 'Markierungsmodus',
			zoom: {
				zoomIn: 'Hineinzoomen',
				zoomOut: 'Herauszoomen'
			}
		}
	},
	pdfjsProcessing: {
		file: {
			data: @Model
		}
	},
	toolbar: {
		items: [
			{ type: 'pager', input: false, previousNext: true },
			{ type: 'zoom', zoomInOut: true },
			'toggleSelection',
			// 'search',
			'download',
			// 'print'
		]
	}
}).data('kendoPDFViewer');

Now I'm trying to implement the widget via tag helper syntax but I've no idea how to configure my custom toolbar setup. Any ideas or is it even possible with tag helper?

<kendo-pdfviewer name="pdfViewer">
	<messages>
		<toolbar download="Herunterladen">
			<pager first="Zur ersten Seite"
				   last="Zur letzten Seite"
				   next="Zur nächsten Seite"
				   previous="Zur vorherigen Seite"/>
		</toolbar>
	</messages>
	<pdfjs-processing file="@Model"/>
	<toolbar>
		<pdfviewer-toolbar-items>
			...
		</pdfviewer-toolbar-items>
	</toolbar>
</kendo-pdfviewer>

Regards,

Daniel

PDFViewer

answered on 26 Apr 2022

0 answers

114 views

Form field errors persists

Why and on what scenario would the form fields error state persist?

After an error, the validation summary and the error fields' messages get displayed. Clear event correctly renders (removes the validation messages). Then filling the correct values and submitting the form produces the expected result but also displays the field validation messages from the previous validation (the summary message do not). So I created a clear handler as follows but it behaves the same:

function formClear(e) {
   const frm = $('#myForm').data('kendoForm');
   frm.clear();
   frm.validator.reset();  //introduced this as the above also did not behave correctly.
}

Form

asked on 25 Apr 2022

0 answers

153 views

Change donut chart size

How do I change the thickness of a donut chart? I'd like to make each group of a single series donut chart a different width/thickness.

Chart

asked on 22 Apr 2022

1 answer

401 views

Wizard with nested model structure - ContentUrl does not serialize complex model

We have a complex data model that has a nested complex property, for example:

public class Person
{
    string Name {get; set}
    Address Address {get; set;}
    public DateTime? Dob { get; set; }
    public bool? AuthToWork { get; set; }
    ...
}

public class Address
{
    public string Street { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public string Zip { get; set; }
    public string Country { get; set; }
}

I have a Wizard control in which I tried to get the content of the steps through the following:

ContentUrl(Url.Action("someAction",  "myController",  Model))

I have two issues:

The model is not being deserialized properly, the complete properties are not serialized--only the type name. I might be missing something, please let me know what I'm missing.
The Action activates the server-side validation, which is not what we wanted. How can I prevent server-side validation?

We'll greatly appreciate any suggestions or pointers.

Many thanks

Wizard

answered on 21 Apr 2022

1 answer

1.0K+ views

Kendo Grid with Radio Yes No

Hi there,

I'm working with MVC Core Razor pages using Grid mode GridEditMode.InCell, Batch(true), ServerOperation(false) to pull data from database, modified and save back to database.

Two of columns I'm dealing with define as bit data type and users want to see in the grid as Yes and No radio that they need to pick one option. What is the better way to handle this requests. Any samples? Thank you.

DropDownList

Grid

answered on 19 Apr 2022