Questions on UI for ASP.NET MVC Forum

2 answers

250 views

Foreign key dropdown depending on content

Hi, as i'm new to these forums, i hope you will not be to hard on me if the solutions is obvious :-)

Let's say i have setup this grid with Products including a foreign key dropdownlist to ProductTypes. Some of these ProductTypes are no longer in use (marked boolean property 'IsValid')
The requirement is that all Products with ProductType are shown independent of the 'IsValid property'. So far so good.
Now the point where i need some help: when a record is added, i would like the ProductType dropdown to only list ProductTypes that are marked as valid. And to make it even more difficult: When a row is in edit mode, i would like the dropdown to only show the valid ProductTypes AND the current ProductType even if that is invalid.

public class ProductController : Controller

{

private DBEntities db = new DBEntities ();

public ActionResult Index()

{

ViewData["ProductTypes"] = db.ProductTypes.Select(b => new { Id = b.idProductType, Name = b.ShortName });

return View();

}

@(Html.Kendo().Grid<Data.EF.Models.Product>()

.Name("grid")

.Columns(columns =>

{

columns.Bound(c => c.Code);

columns.Bound(c => c.Color);

columns.ForeignKey(c => c.idProductType,

(System.Collections.IEnumerable)ViewData["ProductType"], "Id", "Name").Title("Type");

columns.Command(command => { command.Edit(); command.Destroy(); }).Width(180);

})

.ToolBar(toolbar => {

toolbar.Create();

toolbar.Excel();

})

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

.Sortable(sortable => {

sortable.SortMode(GridSortMode.MultipleColumn);

})

.Filterable()

.Scrollable(scrollable => scrollable.Enabled(false))

.DataSource(dataSource => dataSource

.Ajax()

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

.Read(read => read.Action("KProduct_Read", "Product"))

.Create(create => create.Action("Product_Create", "Product"))

.Update(update => update.Action("Product_Update", "Product"))

.Destroy(destroy => destroy.Action("Product_Destroy", "Product"))

)

Grid

answered on 08 Apr 2016

14 answers

1.0K+ views

Model property not set when bound to object

I have these model classes:

public class Part

{

public Guid Id { get; set; }

string Name { get; set; }

public Part()

{

}

public class DetailItem

{

public Guid Id { get; set; }

public Part Part { get; set; }

public DetailItem()

{

}

In my View, the model is the DetailItem. I am trying to use a ComboBox to select the Part for the DetailItem:

@(Html.Kendo().ComboBoxFor(model => model.Part)

.DataValueField("Id")

.DataTextField("Name")

.Filter(FilterType.Contains)

.DataSource(source =>

{

source.Read(read =>

{

read.Action("GetParts", "RefData");

})

.ServerFiltering(true);

}

)

When I save the page, the DetailItem.Part never gets set from the ComboBox. How do I make this work?

ComboBox

answered on 07 Apr 2016

4 answers

293 views

Prevent double post on filter/sort reset

I have a grid with a large data set and I have a button that clears filters and sorting but each one causes a refresh of the data:

$(function () {
$("#reset").click(function (e) {
e.preventDefault();
var datasource = $("#grid").data("kendoGrid").dataSource;
//Clear filters:
datasource.filter([]);

//Clear sorting:
datasource.sort({});
});
});

Is there a way to combine this to only refresh the data once.

Thanks,

Erik

Grid

answered on 07 Apr 2016

1 answer

348 views

ComboBox Grouping and SelectedIndex

I've got a ComboBox which uses Grouping and I'm having trouble setting the selected item:

@(Html.Kendo().ComboBox()
.Name("GroupedList")
.Placeholder("Select...")
.DataValueField("Value")
.DataTextField("Text")
.MinLength(3)
.Filter("contains")
.HtmlAttributes(new { style = "width:100%;" })
.Height(400)
.DataSource(source => source
.Custom()
.Group(g => g.Add("GroupKey", typeof(string)))
.Transport(transport => transport
.Read(read =>
{
read.Action("GetMyItems", "MyController");
})
)
.ServerFiltering(false)
)
)

My controler is returning JSON in the following format with one of the items optionally having "Selected":true

[{"GroupKey":"Address","GroupName":"Address","Selected":false,"Text":"Correspondence Post Code","Value":"821"},...etc..]

ComboBox

answered on 07 Apr 2016

1 answer

102 views

New grid filter operators not working on DateTime

Hi,

I'm using version 2016.1.226 and the new "Is null" and "Is not null" filters are not working correctly on DateTime columns (as well as DateTime? columns).

When I select "Is null" on a DateTime column, it seems to filter the column but the Cancel button (the X button next to filter) does not appear. Then I select "Is not null" and then "Is null" again, the Cancel button appears but it does not do anything. So the only way to get rid of the filtering is to refresh the page.

These filter operators seem to work on String columns though.

Thanks.

Grid

answered on 07 Apr 2016

4 answers

336 views

DropDownList event timing - event after selection is completely done

Hi,

I'm trying to use a DropDownList event to trigger a complex page update (updating a bunch of divs, DataSource reads, etc), and cannot find an event that happens at the right *time* to get the behavior I want. I want to call a javascript function AFTER the user has selected an item from the dropdownlist, AND the DropDownList has refreshed with the user's selection. All the events listed here (http://docs.telerik.com/kendo-ui/api/javascript/ui/dropdownlist#events) fire BEFORE the widget completes updating. The reason I want to do this is to show a "Loading...." message, while the complex page update takes place (it is very complex and takes a couple of seconds), then hide "Loading" and show the new stuff.

Are there any other events I could use to trigger my activity? Executing my update function via an event handler for any of the documented events resulting in the following sequence:

-drop down list expands

-user picks an item

-the page sitting for a couple of seconds while my update happens, with the list still expanded

-drop down list retracts and the page finishes nicely ....

I need an event that fires AFTER the DropDownList finishes updating.

bootstrap has such an event, as shown here:

http://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_ref_js_dropdown_events&stacked=h

the hidden.bs.dropdown event is what I want.

Is there a generic Kendo equivalent, or workaround? The control doesn't have to be a drop down list, its just that was simplest - there are very few items in it. I would prefer to stick with a simple Kendo control, but if there isn't an appropriate event I'll use something else or a workaround -

Thanks!

DropDownList

answered on 06 Apr 2016

3 answers

113 views

Parsing dates

Hi,

I am trying to get the MVC date picker to parse and format dates the same as the ASP.Net date picker does, eg. user enters 1/1/11 and the picker formats it into 1/1/2011.

How do I get the MVC date picker to do this?

Thanks.

Date/Time Pickers

answered on 06 Apr 2016

5 answers

384 views

Panelbar children

Hi guys,

I'm working with the asp.net MVC panelbar. I have succeeded in creating the databound panelbaritems but I don't know how to create the child items.
I have one class
public class Item
{
    public string Header{get;set;}
    public string Description{get;set;}
    public DateTime PostedDateTime{get;set;}
}

The panelbaritems contain the PostedDateTime and the Header, and now I want the child to contain the Description.

Can you show me an example of how to do this?

thanks

PanelBar