ForeignKey Column

The ForeignKey column functionality of the Kendo UI Grid is primarily used for matching the value of a bound property to a desired text field from an external for the grid collection. It follows the convention of the SQL ForeignKey functionality that is used for linking two tables based on a foreign key.

The foreign values for the columns of the grid could be supplied in two ways:

Binding to a Local Collection

Binding the column to a local collection of items can be done via the column.values option.

    <div id="grid"></div>
    <script>
    $("#grid").kendoGrid({
    columns: [
        { field: "productName" },
        { field: "category", values: [
        { text: "Beverages", value: 1 },
        { text: "Food", value: 2 }
        ] }
    ],
    dataSource: [
        { productName: "Tea", category: 1 },
        { productName: "Ham", category: 2 }
    ]
    });
    </script>

Binding to a Remote Collection

In order to bind the column to a remote collection of items, supply the column.dataSource option. It is mandatory to supply the columns.dataValueField and columns.dataTextField options in order to ensure that the column values will be bound to the correct foreign value.

columns:[{ 
        field: "CategoryID",
        width: "200px",
        dataTextField: "CategoryName",
        dataValueField: "CategoryID",
        dataSource: {
                        type: "odata",
                        transport: {
                            read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Categories"
                        }
                    },
        title: "Category" 
    }]

See Also

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