groupHeaderTemplate, field not in columns

[Christoph]

Hi!

I just do my first steps with KendoUI and came across a problem I see no sultion for:
I bind a dataSource to a grid. The dataSource is grouped by a field which is not used in the grid:

    var dsCountries = new kendo.data.DataSource({

    type: "json",

    transport: {

        read: {

            url: '@Url.Action("GetCountries", "Home")',

            dataType: "json",

            type: "POST"

    }},

    schema: {

        data: "data",

        total: "total",

        model: {

            id: 'CountryID',

            fields: {

                Country: { type: "string" },

                Currency: { type: "string" },

                Size: { type: "double" },

                Continent: { type: "string" }

    }}},

    group: {

        field: "Continent", aggregates: [

            { field: "Size", aggregate: "sum" }

        ]

    },

    aggregate: [ { field: "Size", aggregate: "sum" } ],

    sort: { field: "Country", dir: "asc" },

    pageSize: 100,

    serverPaging: true,

    serverFiltering: true,

    serverSorting: true

});

 

var detailGrid = $("<div id=\"grid\" />").kendoGrid({

    dataSource: dsCountries,

    groupable: false,

    sortable: false,

    pageable: false,

    scrollable: false,

    columns: [

        { field: "Country", width: 200, title: "Text" },

        { field: "Currency", width: 200, title: "Text" },

        {

            field: "Size", width: 70, title: "Size", format: "{0:n}", attributes: { "Class": "numbers" },

            groupFooterTemplate: "<div class=\"numbers\">#=kendo.toString(sum, 'n') #</div>",

            footerTemplate: "<div class=\"numbers\">#=kendo.toString(sum, 'n') #</div>"

    }

    ]

});

Everything's OK so far, but now I want to define a groupHeaderTemplate für the 'Continent'-Field; the way it is displayed now in the GroupHeader, which is something like [Fieldname]: [Fieldvalue]. Right now, only displaying [Fieldvalue] would be good enough, but the best solution would offer a complete template.
Can this be done (easily)?

Another thing quite similiar: When the (nondisplayed) grouping field is boolean ('true' and 'false' ist displayed): Is the a way to display alternate values like 

groupingboolean ? "Yes" : "No";

Thanks in advance

[Daniel]

Hello Christoph,

A groupHeaderTemplate cannt be used without defining the column. In order to specify the template but do not show the column, I can suggest to use a hidden column e.g.

columns: [
    {field: "Continent", hidden: true, groupHeaderTemplate: myTemplate},

Regards,
Daniel
the Telerik team

[Christoph]

Daniel,

thanks for your reply. It works perfectly.
And I got a Solution for my 2nd issue by Using a Template:

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

    #if (value == false) { #

    Don't

    # } #

    use it!

</script>

Regards,
Chris