Questions on UI for ASP.NET Core Forum

1 answer

145 views

Cannot pass Data to Read datasource Method

I would pass DatePicker value to datasource of grid, using Data method in this way

<div class="d-inline">

<label>Data</label>

@(Html.Kendo().DatePicker()

.Name("dateFilterDatepicker") // The name of the DatePicker is mandatory. It specifies the "id" attribute of the widget.

.Min(new DateTime(1900, 1, 1)) // Sets the min date of the DatePicker.

.Max(new DateTime(2099, 12, 31)) // Sets the max date of the DatePicker.

.Value(DateTime.Today) // Sets the value of the DatePicker.

)

@(Html.Kendo().Button()

.Name("textSearchButton")

.HtmlAttributes( new {type = "submit"} )

.Content("Ricerca")

.Events(e=>e.Click("onClick")))

</div>

<div class="text-center form-group">

@(Html.Kendo().Grid<ItemModel>()

.Name("itemGrid")

.ToolBar(t => t.Search())

.Filterable()

.AutoBind(true)

.Columns(columns =>

{

columns.Bound(f => f.No);

columns.Bound(f => f.Description);

columns.Bound(f => f.Brand);

columns.Bound(f => f.NetChange);

columns.Bound(f => f.PurchasesQty);

columns.Bound(f => f.LastEntryDate).Format("{0:dd/MM/yyyy}"); ;

})

.Pageable() // Enable paging

.Sortable() // Enable sorting

.Scrollable(scrollable => scrollable.Virtual(true))

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

.DataSource(dataSource => dataSource //Configure the Grid data source.

.Ajax() //Specify that Ajax binding is used.

.PageSize(20)

.Read(read => read.Action("Item_ReadData", "Home").Data("additionalData")) // Set the action method which will return the data in JSON format.

)

</div>

<script>

function additionalData() {

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

return { selectedDate: value }; // send the filter value as part of the Read request

}

function onClick() {

var grid = $("#itemGrid").data("kendoGrid");

grid.dataSource.read(); // rebind the Grid's DataSource

}

</script>

But I'm sure that date is valued, but it seems that not fires additionalData function when it request read method of datasource

My action

[Authorize]

public IActionResult Item_ReadData([DataSourceRequest] DataSourceRequest request, DateTime selectedDate)

{

var itemsFound = new List<ItemModel>();

System.Security.Claims.ClaimsPrincipal currentUser = this.User;

var scope = currentUser.Claims.ToList().SingleOrDefault(c => c.Type == "Scope")?.Value;

using (DbNavision ctx = new DbNavision())

{

if (selectedDate != new DateTime(1, 1, 1))

itemsFound = (from rec in ctx.UpSrlItem

select new ItemModel(rec, selectedDate, scope)).ToList();

var dataResult = itemsFound.ToDataSourceResult(request);

return Json(dataResult);

}

The second parameter of action is ever empty, but if I remove it from action definition, is the same.

what's wrong?

Grid

answered on 20 Apr 2020

3 answers

655 views

In Details Template an event in ClientHeaderTemplate is not triggered

In the Details Template of the Master Grid , in the first Tab Item grid , I have added a column id with ClientHeaderTemplate as a Check box .

When clicked on the checkbox the event is not triggered.

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

@(Html.Kendo().TabStrip()
.Name("tabStrip_#=SecurityMasterId#")
.SelectedIndex(0)
.Animation(animation => animation.Open(open => open.Fade(FadeDirection.In)))
.Items(items =>
{
items.Add().Text("Security Attributes").Content(@<text>

@( Html.Kendo().Grid<CoreMaster.Models.SecurityAttributeView>()
.Name("securityMaster_#=SecurityMasterId#")
.ToolBar(toolbar =>
{
toolbar.Create().Text("Add new Attribute");
})
.Editable(editable =>
{
editable.Mode(GridEditMode.PopUp).TemplateName("secattribute");
})
.Columns(cols =>
{

//This Check box event is not triggered

cols.Bound(y => y.Id).ClientHeaderTemplate("<label><input id='myId' type='checkbox' value='#= getAllData #' onchange='getAllRecords(#=id#)'>Display all records</label>");
cols.Bound(y => y.Name).Title("Name");
})
.DataSource(dataSource => dataSource
.Ajax().ServerOperation(true).PageSize(10)
.Model(model =>
{
model.Id(p => p.Id);
})
)
.Sortable()
.Pageable(p => p.Enabled(true)).Events(e => e.Edit("onEditGrid")) .ToClientTemplate() ) </text>);

Grid

answered on 16 Apr 2020

4 answers

614 views

Create Event Programmatically

I have the scheduler set to timelinemonth view. I would like to create events in the scheduler by simply clicking on the day for a particular attendee. I cant find a way to create the event programmatically without showing the dialog. Unfortunately the "add event" method simply shows the dialog.

I can call the create method in the controller from jquery but then I would have to refresh the page to show the new data.

Scheduler

answered on 16 Apr 2020

5 answers

192 views

Action on Tab Selection

I have a multi-step UI that requires the user select a group from a TreeList. That group selection must then be used to feed into a Grid that is populated by People that are in that selected Group.

How do I do this? I've been using the PanelBar up to this point to perform multi-step processes. However, I've never had to base the data selection in step 2 with the selection from step 1. Can I late bind the Grid so it will go get its data when the host Tab is selected?

PanelBar

answered on 16 Apr 2020

4 answers

851 views

Kendo Editable Grid Row Height Behaviour Change

Hi,

We recently updated our .NET Core web app from Kendo UI v2019.3.1023 to Kendo UI v2020.1.219. The kendo.bootstrap-v4.min.css file contains a change that produces some fairly drastic jitter and row height changes in editable grids with custom ClientTemplates:

.k-grid .k-command-cell, .k-grid .k-edit-cell, .k-grid .k-grid-edit-row td {

padding: calc(.75rem - (1.5em + .75rem + 2px - 1.5em)/ 2) .75rem

}

I have confirmed the issue is in the above css by removing it and observing that editable grid rows don't jitter and change height when you click on an editable cell. Is this a bug or was this an intended change in behaviour? What is the best / easiest way to completely remove this behaviour? There is nothing special about the grid other than the checkbox ClientTemplate:

@(Html.Kendo().Grid(Model.Create)

.Name("CreateGrid")

.Navigatable()

.Editable(editable => editable.Mode(GridEditMode.InCell))

.Events(events => events.Edit("OnCreateGridEdit"))

.Columns(columns => ...

Kind regards,

David

Grid

answered on 09 Apr 2020

1 answer

190 views

How to disable DatePicker animation use TagHelper?

Can the DatePicker animation be disabled using the TagHelper? I tried adding an animation="false" attribute but had to revert to using @Html.Kendo().DatePicker() before it would disable the open/close animation.

Date/Time Pickers

answered on 09 Apr 2020

3 answers

1.5K+ views

setting the whole sort of the grid from a single string

Hello,

When I call the following javascript API:

1.var grid = $('#Results').data('kendoGrid');

2.var ds = grid.dataSource;

3.var parameters = ds.transport.parameterMap({ sort: ds._sort, page: ds._page }, "read");

then I get an output like this:

{"sort":"Name-asc~Email-desc","page":2,"group":"","filter":""}

Is there any way (.net core or javascript) to pass the string "Name-asc~Email-desc" to the grid (or the datasource or any related objects) in order to apply the sorting ?

Thanks a lot!

Grid

answered on 09 Apr 2020

1 answer

164 views

Tag Template # out of ## problem

Visual Studio 2019, Kendo 2020.1.219, Net Core 3.1

I am trying to use a tag template to display the number of items selected rather that displaying the selected items. The multiselect gets the data correctly but when I select an item in the list I get an error saying 'values' is undefined. If I remove values it says maxTotal is undefined. Any idea what I am doing wrong or missing?

    @(Html.Kendo().MultiSelect()
        .Name("SBN")
        .DataTextField("Text")
        .DataValueField("Value")
        .Placeholder("Select SBN...")
        .TagTemplateId("SBNTagTemplate")
        .TagMode(MultiSelectTagMode.Multiple)
        .AutoClose(false)
        .DataSource(source =>
        {
            source.Read(read =>
            {
                read.Action("SBNMultiSelect_Read", "Report");
            })
            .ServerFiltering(true);
        })
    )

<script id="SBNTagTemplate" type="text/x-kendo-template">
    #:values.length# out of #:maxTotal#
</script>

Head element from _Layout.cshtml:

MultiSelect

answered on 08 Apr 2020

1 answer

313 views

InCell Editing a checkbox

Hi,

I have:

columns.Bound(t => t.IsActive).Width(45)

.ClientTemplate("#=dirtyField(data,'IsActive')# <input type='checkbox' #=IsActive ? checked='checked':'' # ;/>")

.HtmlAttributes(new { style = "text-align:center; " });

with the following javascript which, I believe I got from Telerik

function dirtyField(data, fieldName)

{

var hasClass = $("[data-uid=" + data.uid + "]").find(".k-dirty-cell").length < 1;

if (data.dirty && data.dirtyFields[fieldName] && hasClass)

return "<span class='k-dirty'></span>";

else

return "";

}

It works great if I click on the cell first and then check/uncheck the checkbox.

However, if I click directly on the checkbox it doesn't flag it as dirty and the changes are not saved.

Can someone point me in the right direction?

Thanks … Ed

Grid

answered on 06 Apr 2020

2 answers

176 views

Grid Change Event Issue

We are seeing an issue where the Change event for Grid is firing as if it was the Databind event. We get a console log event on load and when we filter the grid to cause another bind, but not when I click select on a row. I want to redirect to a details page for that row when the user clicks.

<div class="ci-body-grid">

@(Html.Kendo().Grid<OrderViewModel>()

.Name("gridMain")

.Columns(columns => {

columns.Bound(e => e.OrderID).Filterable(false);

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

columns.Bound(e => e.OrderDate).Width(120).Format("{0:MM/dd/yyyy}");

columns.Bound(e => e.ShipName).Width(260).Filterable(filterable => filterable.Cell(cell => cell.Operator("contains").ShowOperators(false)));

columns.Bound(e => e.ShipCity).Width(150);

})

.Excel(excel => {

excel.AllPages(true);

excel.FileName("Users.xlsx");

})

.ToolBar(toolbar => { toolbar.ClientTemplateId("tmpGridToolbar"); })

.Pageable(pageable => pageable.Refresh(true).Numeric(false).PreviousNext(false))

.Selectable(selectable => selectable.Mode(GridSelectionMode.Single).Type(GridSelectionType.Cell))

.Navigatable()

.Mobile()

.Resizable(resize => resize.Columns(true))

.ColumnMenu()

.Sortable()

.Scrollable(scrollable => scrollable.Virtual(true))

.Filterable(filterable => filterable.Mode(GridFilterMode.Row))

.DataSource(dataSource => dataSource

.Custom()

.Events(events => events.Change("gridMain_OnChange").Error("error_handler"))

.Type("odata")

.Transport(transport =>

transport.Read(read => read.Url("https://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders"))

)

.PageSize(100)

.ServerPaging(true)

.ServerSorting(true)

.ServerFiltering(true)

))

</div>

<script id="tmpGridToolbar" type="text/x-kendo-template">

<span class="ci-header-grid">Users</span>

<div class="k-float-right k-display-inline-block">

@(Html.Kendo().Button().Name("btnExport").Icon("file-excel").Content("Export").Events(evt => evt.Click("exportGrid")).ToClientTemplate())

</div>

</script>

@section Scripts {

<script>

function exportGrid() {

$("#gridMain").data("kendoGrid").saveAsExcel();

}

function resizeGrid() {

$("#gridMain").data("kendoGrid").resize();

}

$(window).resize(function () {

resizeGrid();

});

function gridMain_OnChange(arg) {

var test = "";

console.log(this);

//var selected = $.map(this.select(), function (item) {

// return $(item).text();

//});

//console.log("Selected: " + selected.length + " item(s), [" + selected.join(", ") + "]");

}

</script>

}

Grid

answered on 06 Apr 2020