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Move Group Labels on Top of DropDownList Items

Environment

Product Progress Kendo UI DropDownList for jQuery
Operating System Windows 10 64bit
Visual Studio version Visual Studio 2017
Preferred Language JavaScript

Description

How can I group the list items of a DropDownList by certain criteria and show the group labels and grouped items within the drop-down list?

Solution

The following example demonstrates how to move the group label on top of the grouped items in a Kendo UI DropDownList. The approach is also applicable to the ComboBox and MultiSelect widgets.

<input id="customers" style="width: 400px" />
    <script>
      $(document).ready(function() {
        $("#customers").kendoDropDownList({
          dataTextField: "ContactName",
          dataValueField: "CustomerID",
          fixedGroupTemplate: "LEFT ALIGNED, FULL ROW #=data#",
          groupTemplate: "FULL LINE ABOVE ROW: #: data #",
          height: 400,
          dataSource: {
            type: "odata",
            transport: {
              read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Customers"
            },
            group: { field: "Country" }
          }
        });
      });
    </script>
    <style>
      .k-list > .k-item.k-first {
        padding-top: 2em;
      }

      .k-list > .k-hover.k-first {
        padding-top: calc(2em - 1px);
      }

      .k-list > .k-item.k-first > .k-group {
        height: 2em;
        left: 0;
      }

      .k-list > .k-hover.k-first > .k-group {
        top: -1px;
        left: -1px;
      }
    </style>

See Also

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