Access the Editor Control in the edit Event of the Grid

Environment

Product	Progress® Kendo UI® Grid for jQuery
Operating System	Windows 10 64bit
Visual Studio Version	Visual Studio 2017
Preferred Language	JavaScript

Description

How can I access an editor in the edit event handler of the Grid?

Solution

The functionality relies on the following concepts:

• The edit event handler of the Grid provides a reference to the DOM element of the edit container.
• The Kendo UI widgets have a data-role HTML attribute rendered for the DOM element. This attribute holds the widget object.

For brevity, the following demo does not include the configuration for the Data Source transport. However, for the CRUD operations to work properly, they require a transport configuration.

<script src="https://demos.telerik.com/kendo-ui/content/shared/js/products.js"></script>
<div id="example">
    <div id="grid"></div>

    <script>

        $(document).ready(function () {
            var dataSource = new kendo.data.DataSource({
               pageSize: 20,
               data: products,
               schema: {
                   model: {
                     id: "ProductID",
                     fields: {
                        ProductID: { editable: false, nullable: true },
                        ProductName: { validation: { required: true } },
                        Category: { defaultValue: { CategoryID: 1, CategoryName: "Beverages"} },
                        UnitPrice: { type: "number", validation: { required: true, min: 1} }
                     }
                   }
               }
            });

            $("#grid").kendoGrid({
                dataSource: dataSource,
                pageable: true,
                height: 550,
                toolbar: ["create"],
                columns: [
                    { field:"ProductName",title:"Product Name" },
                    { field: "Category", title: "Category", width: "180px", editor: categoryDropDownEditor, template: "#=Category.CategoryName#" },
                    { field: "UnitPrice", title:"Unit Price", format: "{0:c}", width: "130px" },
                    { command: "edit", title: " ", width: "150px" }],
                editable: "inline",
                edit: function(e) {
                  var model = e.model; //Reference to the model that is about the be edited.

                  var container = e.container; //Reference to the editor container.

                  var categoryDropDownList = container.find("[data-role=dropdownlist]").data("kendoDropDownList");
                  //Find the widget element and then get the widget instance
                  // if the DropDownListwidget is found.
                  if (categoryDropDownList) {
                    // Use the DropDownList API based on the model values to accomplish your business requirement.
                    // Link: https://docs.telerik.com/kendo-ui/api/javascript/ui/dropdownlist
                    console.log("DropDownList", categoryDropDownList);
                  }

                  var priceNumericTextBox = container.find("[data-role=numerictextbox]").data("kendoNumericTextBox");
                  // Find the widget element and then the widget instance.
                  if (priceNumericTextBox) {
                    // Use the NumericTextBox API.
                    // Link: https://docs.telerik.com/kendo-ui/api/javascript/ui/numerictextbox
                    console.log("NumericTextBox", priceNumericTextBox);
                  }
                }
            });
        });

        function categoryDropDownEditor(container, options) {
            $('<input required data-text-field="CategoryName" data-value-field="CategoryID" data-bind="value:' + options.field + '"/>')
                .appendTo(container)
                .kendoDropDownList({
                    autoBind: false,
                    dataSource: {
                        type: "odata",
                        transport: {
                            read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Categories"
                        }
                    }
                });
        }

    </script>
</div>

See Also

• JavaScript API Reference of the Data Grid