如何为剑道网格列设置自定义模板

Question

I need to set Kendo grid action button Icon based on value. My code as follows,

function InitProductServicesGrid() {
    var prodServiceDataSource = new kendo.data.DataSource({
        transport: {
            type: "json",
            read:
                {
                    url: SERVER_PATH + "/LTSService/ProductsService.asmx/GetProductServiceDetailsList",
                    type: "POST",
                    contentType: 'application/json',
                    data: GetAdditonalData,
                    datatype: "json"
                },
            update:
            {
                url: SERVER_PATH + "/LTSService/ProductsService.asmx/SaveProductService",
                type: "POST",
                contentType: 'application/json',
                datatype: "json"
            }
        },
        schema: {
            data: function (result) {
                return JSON.parse(result.d);
            },
            model: {
                id: "Id",
                fields: {
                    Id: { type: "int" },
                    ServiceTime: { type: "string" },
                    IsActive: { type: "boolean"}
                }
            }
        },
        requestEnd: function (e) {
            if (e.type === "destroy") {
                var grid = $("#productServicesGrid").data("kendoGrid");
                grid.dataSource.read();
            }
        },
        error: function (e) {
            e.preventDefault();
            if (e.xhr !== undefined && e.xhr !== null) {
                var messageBody = e.xhr.responseJSON.Message;
                ShowGritterMessage("Errors", messageBody, false, '../App_Themes/Default/LtsImages/errorMessageIcon_large.png');
                var grid = $("#productServicesGrid").data("kendoGrid");
                grid.cancelChanges();
            }
        },
        pageSize: 20,
    });

    $("#productServicesGrid").kendoGrid({
        dataSource: prodServiceDataSource,
        sortable: true,
        filterable: false,
        pageable: true,
        dataBound: gridDataBound,
        editable: {
            mode: "inline",
            confirmation: false
        },
        columns: [
            { field: "Id", title: "", hidden: true },
            {
                field: "ServiceTime",
                title: "Time Standard",
                sortable: false,
                editor: function (container, options) {
                    var serviceTimeTxtBox = RenderServiceTime();
                    $(serviceTimeTxtBox).appendTo(container);
                },
                headerTemplate: '<a class="k-link" href="#" title="Time Standard">Time Standard</a>'
            },
            {
                title: "Action", command: [
                    {
                        name: "hideRow",
                        click: hideRow,
                        template: comandTemplate
                    }
                ],
                width: "150px"
            }
        ]
    });

}

I wrote a custom template function as follows,

function comandTemplate(model) {

    if (model.IsActive == true) {
        return '<a title="Hide" class="k-grid-hideRow k-button"><span class="k-icon k-i-lock"></span></a><a title="Hide"></a>';
    }
    else {
        return '<a title="Show" class="k-grid-hideRow k-button"><span class="k-icon k-i-unlock"></span></a><a title="Show"></a>';
    }
}

But when I debug the I saw the following value for model value.

I followed this sample code as well. here you can see, I also set the custom template like the sample code. Please help me to solve this. Why I can't access model IsActive value from comandTemplate function.

Updated

When clicking hideRow action, I access the dataItem as follows.

function hideRow(e) {
    e.preventDefault();
    var dataItem = this.dataItem($(e.currentTarget).closest("tr"));

        if (dataItem.IsActive == true) {
            dataItem.IsActive = false;
        }
        else {
            dataItem.IsActive = true;
        }
}

Is there any possible way to access data from template function as above or any other way?

Answer 1

I would suggest a different approach because you can't access grid data while rendering and populating grid.

My suggestion is to use two actions and hide it based on the flag (in your case IsActive ).

Something like this: Custom command

NOTE : in visible function you can access item!

EDIT : you can access it and change it on dataBound traversing through all data. Check this example: Data bound

Answer 2

I don't see the advantage of relying on the grid commands. You can render any button you want yourself and and use the dataBound event to bind a click handler:

  $("#grid").kendoGrid({
    columns: [
      { field: "name" },
      {
        template: function(dataItem) {
            const isActive = dataItem.isActive;
            return `<a title=${isActive ? "Hide": "Show"} class="k-grid-hideRow k-button"><span class="k-icon k-i-${isActive ? 'lock' : 'unlock'}"></span></a>`
        }      
      }
    ],
    dataBound: function(e) {
      e.sender.tbody.find(".k-grid-hideRow").click(evt => {
        const row = evt.target.closest("tr")
        const dataItem = e.sender.dataItem(row)
        dataItem.set("isActive", !dataItem.isActive)
      })            
    },
    dataSource: [{ name: "Jane Doe", isActive: false }, { name: "Jane Doe", isActive: true }]
  });

Runnable Dojo: https://dojo.telerik.com/@GaloisGirl/eTiyeCiJ