Questions on Kendo UI for jQuery Forum

4 answers

2.6K+ views

Change event doesn't fire after clearing the value and selecting the same one

I know this may seem minor, but it's an issue I'm trying to fix. If you have an autocomplete and select a value, then clear it with .val(''), then select the same value, the change event doesn't fire. This is a problem because I'm using the autocomplete with knockout and the observable doesn't get updated. See this fiddle: http://jsfiddle.net/rniemeyer/Z8yL8/

Select red, click Reset, select red again and you'll see that it doesn't log the change to the console.

Aside from the fact that I'm using knockout, the change event should fire if you select something, then clear the value, then select a value. It only does that when the second value is different from the first, even though the value was empty between them.

Is there any workaround for this issue without waiting for a release?

Regards,
Chris Rock

AutoComplete

answered on 28 Sep 2012

0 answers

151 views

Columns header text is not updating

Hi,

I have kendo grid that is being binded in the js with a collection from the View Model. as follow when the page loads.

$('Grid1').kendoGrid({ columns: this.Grid1.Columns, resizable: "true", selectable: "row", sortable: "true", rowTemplate: kendo.template($("#listview-rowTemplate").html()) });

At this point(when the page loads) the ViewModel collection has some default values, later in a callAction of a button event, the ViewModel collection is filled with different information for every column (text, width and others). Looking at the json retrieved the information is correct but the Grid is not being updated until I refresh the page using F5 and the js line of binding is executed again.

The binding is right because in another Grid the ViewModel Collection is filled before the binding and it shows the width, header text and all the rest of the information right.

My question is if the binding for the columns of a grid just work with initial values (previously loaded) and you cannot changes the titles and width or am I missing some details about binding and that´s why the grid is not updating the columns?

Thanks in advance!

Grid

asked on 28 Sep 2012

0 answers

107 views

Dropdown list in Pop-up not sending back correct values

I've a grid with a custom template modal window for edit & add. The template has drop down list field defined like below:

<div class="k-edit-label">
            <label for="ColName">Site</label>
</div>
<input name="ColName" data-source="ColNameDataSource" data-text-field="colName" 
      data-value-field="dartSiteName" data-bind="value:ColName" data-role="dropdownlist" />

When I edit a row and change the value of the drop-down it shows correctly in the grid.

But if I Add a row and change the value of the drop down it shows up as [object Object]. Does anyone have any idea what could I be doing wrong?
Thanks.

Grid

asked on 28 Sep 2012

0 answers

74 views

Sorting/Filtering/Paging doesn't work in Detail grid databound through clientside

I have a hierarchical grid with 3 levels, in which the 2nd and 3rd levels are bound on the client side during expansion of the row through the OnDataBinding ClientEvent.

Sample code for binding I am doing:

function detailGrid_dataBinding(e) {
if ($(this) != undefined) {
var grid = $(this).data("tGrid"),
masterRow = $(this).closest("tr.t-detail-row").prev(),
dataItem = $("#Status").data("tGrid").dataItem(masterRow);

grid.dataBind(dataItem.Details);

e.preventDefault();
}
}

However, when I apply the sorting/filtering/paging options to grid in the detail view, the visualization for the feature shows up but they don't function.

Is this a known issue?

Grid

asked on 28 Sep 2012

0 answers

117 views

Subgrid Edit

I've defined a Grid on an aspx page in a MVC 3 project. The "Parent" (Customers) grid has inline editing which works fine. I defined a subgrid of the parent using the ClientDetailTemplateId.

That sub grid displays values just fine. I've also enabled Editing in the subgrid such as

.DataSource(ds => ds
.Ajax()
.Read(read => read.Action("GetCustomerAddresses", "Address", new { Customer = "#CustomerID#" }))
.Update(update => update.Action("UpdateAddress", "Address"))
.Create(update => update.Action("NewAddress", "Address"))
.Destroy(update => update.Action("DeleteAddress", "Address"))
.Model(model => model.Id(a => a.AddressID))
)

In the subgrid when I select the "Edit" button the row goes into editing mode fine, When I click the "Update" button, an error is thrown saying
http:.//localhost/Address/Create is not found 404 not found.

Why the Controller method "Create" is being called is completely beyond me.

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Grid

asked on 28 Sep 2012

4 answers

132 views

Formatting doesn't apply when manually setting data on grid

I have a Grid connected to DataSource and displayed on clipboard01.jpg
When I click on the Calculate button, I collect some the Grid's data and send it over to the server with an Ajax call
I return Json with some calculated values for the MTM field, which I'm adding to the grid...

    $.ajax({
        type: "POST",
        dataType: "json",
        data: unwindDataToPostObj,
        url: direction
    })
    .done(function (response) {
        var grid = $("#gridAssoc").data("kendoGrid");
        grid.dataSource.data(response);
        grid.refresh();
    })
    .fail(function (jqXHR) {
        console.log("error");
    });

Please look at picture: clipboard02.jpg now
The formatting for the Trade Date & Settle Date is now broken, although it was declarative set by the book.

    // ** Grid widget
    $("#gridAssoc").kendoGrid({
        dataSource: CFDUnwind._assocTradesDataSource,
        navigatable: true,
        selectable: "single",
        height: 300,
        resizable: true,
        sortable: {
            mode: "single",
            allowUnsort: false
        },
        columns: [
            { field: "Strategy", title: "Strategy", width: 60 },
            { field: "ImagineSNum", title: "ImagineSNum", width: 50 },
 
            {
                field: "TradeDate", title: "Trade Date", width: 48,
                template: '#= kendo.toString(TradeDate,"MM/dd/yyyy") #'
            },
            {
                field: "SetlDate", title: "Settle Date", width: 48,
                template: '#= kendo.toString(SetlDate,"MM/dd/yyyy") #'
            },

...etc....

1. Why is the formatting not obeyed?
2. In other words how do I manually set the data on the grid and preserve any formatting already set on the columns?

~ Boris

Grid

answered on 28 Sep 2012

0 answers

67 views

MMVM and Grid: define grouping declaratively

This is probably simple, but I've not found a solution. I've a ground declared like so:

    <div id="grid" 
         data-role="grid" 
         data-bind="source: tasks" 
         data-columns='[{ "field": "taskId", "width": "150px", "title": "Id" }, ... ]' 
         data-pageable='{ "pageSize": 10 }'
         data-groupable='[{ "field" : "completionStatusDescription", "aggregates": [{"field": "taskId", "aggregate": "count"}] }]'
        >
    </div>

This is bound to a view model and all works fine except for the grouping. Is the above the correct format? I couldn't find explicit docs on this and just guessed, which is probably why it isn't working. The grouping works in the UI, although I can't configure the aggregates.

Is this possible, or have I just got the synax wrong?

Thanks

d

MVVM

asked on 28 Sep 2012

4 answers

825 views

grid add command won't work

I'm having some issues getting the kendo grid for mvc to work properly (especially the add button in the toolbar). I have a grid with editing in a popup window. For this I'm using a custom template which is in Views/Location/EditorShow.

The edit command is working just fine since this is showing up a popup for the user to edit data in (basically this loads Views/Location/EditorShow like I want it to). The delete command is also working just fine too.

The problem however is the Add command which is situated inside the toolbar. This one does not seem to have a correct url (it's pointing to the root of the website). Also find attached a screenshot showing to source of the add button. If I surf to ?GridLocations-mode=insert manually however a create popup is showing up.

Quite a strange situation, because there seems to be only a problem with the url of the add button in the toolbar.
Any ideas on what may be causing this??

P.S. Below is the code I'm using in my .cshtml file:

@Html.Kendo().Grid(Model).Name("GridLocations").Columns(columns =>

{

columns.Bound(l => l.Name).Title("Name");

columns.Command(command =>

{

command.Edit().Text("Edit");

command.Destroy().Text("Delete");

}).HeaderTemplate("Manage");

}).ToolBar(toolbar => toolbar.Create().Text("Create")).DataSource(dataSource => dataSource

.Server()

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

// Configure CRUD -->

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

.Read(read => read.Action("Index", "Locations"))

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

.Destroy(destroy => destroy.Action("Delete", "Locations"))

// <-- Configure CRUD

).Editable(editable => editable.Mode(GridEditMode.PopUp).TemplateName("EditLocations"))

I don't think this does contain any strange stuff, since it's mostly the same as the examples on the website.
Any thoughts on why the add button is not working properly like expected?

Grid

answered on 28 Sep 2012

2 answers

294 views

Result count in json

Hey guys,

I'm using DataSource to drive a sort of "live filtering". After a filter's been applied I reload the data-source with the appropriate get-vars, but I want to add the results-count to this. I'm pretty flexible in how I construct my json (example of current json below), but I'm not sure how I would use kendo to place this somewhere in my html. My json looks like this:

{

"results": [

{

"title": "My entry",

"description: "My description"

},

{

"title": "Another entry",

"description: "Another description"

},

]

}

So my questions are:

- Where in my json would I add the result-count?
- How do I make kendo render this to the current document?

Thanks guys!

- Steven

Data Source