Detect Input change Events in the DropDownList

Environment

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

Description

The change event of the DropDownList fires when the value of the widget is changed by the user. How can I detect changes in the input of the Kendo UI DropDownList?

Solution

The following example demonstrates how to achieve the desired scenario.

  <div id="example">
    <div class="demo-section k-header">
      <h4 class="title">DropDownList</h4>
      <input id="dropdownlist" style="width: 400px;"/>
    </div>
    <div class="box">                
      <h4>Console log</h4>
      <div class="console"></div>
    </div>
    <script>
      $(document).ready(function() {
        function widgetChange(e) {
          var value = this.value();
          $(".console").append("<p>event: change (widget) -- selected value: " + value + "</p>");
        };

        function inputChange() {
          var val = $("#dropdownlist").val()
          $(".console").append("<p>event: change (input)-- selected value: " + val + "</p>");
        };

        var data = [
          {text: "Item1", value:"1"},
          {text: "Item2", value:"2"},
          {text: "Item3", value:"3"}
        ];

        $("#dropdownlist").kendoDropDownList({
          dataTextField: "text",
          dataValueField: "value",
          dataSource: data,
          change: widgetChange
        });

        $("#dropdownlist").change(inputChange);
      });
    </script>            
    <style scoped>
      .demo-section {
        width: 400px;
      }
    </style>   
  </div>

See Also

• JavaScript API Reference of the DropDownList
• Automatically Adjust the Width of a DropDownList
• Create DropDownLists with Long Items
• Detect Wrapper Focus Events
• Move the Group Label on Top of Items
• Prevent Popup Closure on Scroll
• Remove Items
• Set DataSource Dynamically
• Update MVVM Bound Models on Load