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Appearance

As of Kendo UI R1 2022, the jQuery DropDownList widget has new rendering and styling options.

In this article, you will find information about the rendering of the Kendo UI DropDownList.

For additional information regarding the decision behind these changes, visit the Rendering Components article.

For a live example, visit the Appearance Demo of the DropDownList.

Options

The Kendo UI DropDownList supports the following styling options:

  • size—configures the overall size of the component.
  • rounded—configures the border radius for the tags.
  • fillMode—controls how the color is applied.

Size

The size option controls how big or small the DropDownList component looks. The structure of the class is k-picker-{size}.

The following values are available for the size option:

  • sm—small size
  • md—medium size
  • lg—large size

The default size value is medium and it is applied to the span wrapping element through the k-picker-md class.

The example below shows a basic configuration and how to set size to "large":

<input id="dropdownlist" />
<script>
    $("#dropdownlist").kendoDropDownList({
      size: "large"
    });
</script>

Below is the HTML that is affected from the configuration. The changes are applied to the span.k-dropdownlist wrapping element:

<span class="k-dropdownlist k-picker k-picker-lg">
    ...
</span>

Rounded

The rounded option controls how much border radius is applied to the tags for the selected items in the widget. The structure of the class is k-rounded-{size}.

The following values are available for the rounded option:

  • sm—small border radius
  • md—medium border radius
  • lg—large border radius
  • full—ellipse-like border radius

The default value is medium and it is applied to the span.k-dropdownlist wrapping element through the k-rounded-md class.

The example below shows a basic DropDownList configuration and how to set rounded to "full":

<input id="dropdownlist" />
<script>
    $("#dropdownlist").kendoDropDownList({
      rounded: "full"
    });
</script>

The changes are applied to the span.k-dropdownlist wrapping element:

<span class="k-dropdownlist k-picker k-rounded-full">
    ...
</span>

FillMode

The fillMode option controls how the color is applied. The structure of the class is k-picker-{fillMode}.

The following values are available for the fillMode option:

  • solid
  • flat
  • outline

The default value is solid and it is applied to the span.k-dropdownlist wrapping element through the k-picker-solid class.

The example below shows a basic DropDownList configuration and how to set fillMode to "outline":

<input id="dropdownlist" />
<script>
    $("#dropdownlist").kendoDropDownList({
      fillMode: "outline"
    });
</script>

The changes are applied to the span.k-dropdownlist wrapping element:

<span class="k-dropdownlist k-picker k-picker-outline">
    ...
</span>

Old vs New Rendering

The old rendering of the component consisted of several wrapping elements:

  • The outer span wrapper with the k-dropdown and k-widget classes.

    <span class="k-widget k-dropdown">
    </span>
    
  • The inner span wrapper with the k-dropdown-wrap class.

    <span class="k-dropdown-wrap k-state-default">
    </span>
    
  • The input element with the k-input class. This element is a child of the k-dropdown-wrap span.

    <input class="k-input" role="combobox" >
    </span>
    
  • The button span element with k-select class. This element is a child of the k-dropdown-wrap span and renders the button which expands the dropdown on click.

    <span unselectable="on" class="k-select" role="button">
    </span>
    
  • The icon span element with the k-icon class. This element is a child of the k-select span and renders the dropdown arrow icon.

    <span class="k-icon k-i-arrow-60-down">
    

The new rendering of the component consists of a single wrapping span element that contains the child input and button elements:

  • The span element controls the overall appearance of the widget and has the following class structure:

    <span class="k-picker k-dropdownlist k-picker-solid k-picker-md k-rounded-md">
    </span>
    
  • The span element controls the appearance of the DropDownList itself and has the following class structure:

    <span class="k-input-inner"></span>
    
  • The button element controls the appearance of the button that expands the dropdown popup and has the following class structure:

    <button type="button" class="k-select k-input-button k-button k-icon-button k-button-md k-button-solid k-button-solid-base k-icon-button">
    </button>
    
  • The inner span element renders the dropdown arrow icon of the DropDownList and has the following class structure:

    <span class="k-icon k-i-arrow-s k-button-icon"></span>
    

With the previous versions, when the filtering was enabled, the search icon in the DropDownList popup was rendered on the right side. With the new rendering, the search icon is rendered on the left side.

The examples below demonstrates the full version of the old and new rendering:

Wrapper Rendering:

<!-- OLD WRAPPER-->
<span class="k-widget k-dropdown">
    <input id="dropdownlist" type="text" class="k-input" placeholder="...">
</span>

<!-- NEW WRAPPER -->
<span class="k-picker k-dropdownlist k-picker-solid k-picker-md k-rounded-md">
    <span class="k-input-inner">
        <span class="k-input-value-text">Patricio Simpson</span>
    </span>
    <button class="k-select k-input-button k-button k-button-md k-rounded-md k-button-solid k-button-solid-base k-icon-button">
        <span class="k-icon k-i-arrow-s k-button-icon"></span>
    </button>
</span>

Popup rendering without virtualization:

<!-- OLD POPUP WITHOUT VIRTUALIZATION-->
<div class="k-list-container k-popup k-group k-reset k-state-border-up" id="products-list" data-role="popup">
    [Header template]
    <div class="k-group-header">Argentina</div>
    <div class="k-list-scroller">
      <ul class="k-list k-reset">
        <li class="k-item">Patricio Simpson</li>
        ...
        <li class="k-item k-first">
            Ann Devon
            <div class="k-group">UK</div>
        </li>
        ...
      </ul>
    </div>
    <div class="k-nodata">
      <div>No Data!</div>
    </div>
    <div class="k-footer">
      [Footer template]
    </div>
</div>

<!-- NEW POPUP NO VIRTUALIZATION -->
<div class="k-popup k-group k-reset">
    <div class="k-list k-list-md">
        <div class="k-list-header">
            [header template]
        </div>
        <div class="k-list-group-sticky-header">Argentina</div>
        <div class="k-list-content k-list-scroller">
            <ul class="k-list-ul">
                <li class="k-list-item">
                    <span class="k-list-item-text">Patricio Simpson</span>
                </li>
                ...
                <li class="k-list-item k-first">
                    <span class="k-list-item-text">Roland Mendel</span>
                    <div class="k-list-item-group-label">Austria</div>
                </li>
                ...
            </ul>
        </div>
        <div class="k-nodata">
            <div>No data found.</div>
        </div>
        <div class="k-list-footer">
            [Footer template]
        </div>
    </div>
</div>

Popup rendering with virtualization:

<!-- OLD POPUP WITH VIRTUALIZATION-->
<div class="k-list-container k-popup k-group k-reset">
    <div>
       [Header template]
    </div>
    <div class="k-virtual-wrap">
        <div class="k-group-header"></div>
        <div class="k-virtual-content">
          <ul class="k-list k-reset k-virtual-list">
            <li class="k-virtual-item k-item">
              Vins et alcools Chevalier
            </li>
            ...
            <li class="k-virtual-item k-item">
              Toms Spezialitäten
            </li>
            ...
          </ul>
          <div class="k-height-container">
            <div style="height: ....;"></div>
          </div>
        </div>
    </div>
    <div class="k-nodata">
        <div>No data found.</div>
    </div>
    <div class="k-footer">
        [Footer template]
    </div>
</div>

<!-- NEW POPUP WITH VIRTUALIZATION-->
<div class="k-popup k-group k-reset">
    <div class="k-list k-list-md k-virtual-list">
        <div class="k-list-header">
            [Header template]
        </div>
        <div class="k-list-group-sticky-header">Argentina</div>
        <div class="k-list-content k-virtual-content">
            <ul class="k-list-ul">
                <li class="k-list-item">
                    <span class="k-list-item-text">
                        Text
                    </span>
                </li>
                ...
                <li class="k-list-item k-first">
                    <span class="k-list-item-text">
                        Ernst Handel, Austria
                    </span>
                    <div class="k-list-item-group-label">Austria</div>
                </li>
                ...
            </ul>
            <div class="k-height-container">
                <div style="height: ...;"></div>
            </div>
        </div>
        <div class="k-nodata">
            <div>No data found.</div>
        </div>
        <div class="k-list-footer">
            [Footer template]
        </div>
    </div>
</div>

Visual Backwards Compatibility

In order to achieve the same look and feel as the old rendering, the element references must be updated. Visit the CSS Classes Migration and JQuery Selectors Migration sections of the Styling Overview article for additional information.

The new styling and rendering supports only the default options when you use a LESS theme.

Previously, a reference to the DropDownList input element was obtainable through the k-input class.

$(".k-input") // Returns a reference to the input element in the old rendering.

With the new rendering, the DropDownList input element must be targeted by using the k-input-inner class.

$('.k-dropdownlist .k-input-inner') // Returns a reference to the input element in the new rendering.

Previously, a reference to the dropdown button element was obtainable through the k-select class.

$(".k-select") // Returns a reference to the dropdown button element in the old rendering.

With the new rendering, a reference to the dropdown button element is obtainable through the k-button and k-input-button classes.

$(".k-button") // Returns a reference to the dropdown button element in the new rendering.
$(".k-input-button") // Returns a reference to the dropdown button element in the new rendering.

Previously, a reference to the items in the DropDownList popup was obtainable through the k-item class.

$(".k-item") // Returns a reference to the items rendered in the DropDownList popup.

With the new rendering, the DropDownList item elements must be targeted by using the k-list-item class.

$('.k-list-item') // Returns a reference to the items rendered in the DropDownList popup.

See Also

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