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Asked: 2026-05-27T23:09:15+00:00

Hi I’m new to javascript and dojo. I’m trying to use two dijit DateTextBoxes

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Hi I’m new to javascript and dojo. I’m trying to use two dijit DateTextBoxes with the drop-down calendars to establish a date range for a query on a database. I want to restrict the dates available, once the begin or end date has been selected, so that its impossible to pick an end date that is chronologically before the begin date, and vice versa. I’m trying to apply the example called ‘changing constraints on the fly’ (about half way down the page) from the dojo reference here: http://dojotoolkit.org/reference-guide/dijit/form/DateTextBox.html However, the constraints aren’t working in my code. The only thing I’m really doing differently is using thetundra theme. Any suggestions would be greatly appreciated. 

<html>

<head>
  <title></title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6/dojo/resources/dojo.css">
  <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6.0/dijit/themes/tundra/tundra.css" media="screen" />
  <script src="http://ajax.googleapis.com/ajax/libs/dojo/1.6.0/dojo/dojo.xd.js" data-dojo-config="isDebug: true, parseOnLoad: true"></script>

  <script type="text/javascript">
    dojo.require("dijit.form.DateTextBox");
  </script>
</head>

<body class="tundra">
  <div>
    <label for="fromDate">From:</label>
    <input id="fromDate" type="text" name="fromDate" data-dojo-type="dijit.form.DateTextBox" required="true" onChange="dijit.byId('toDate').constraints.min = arguments[0];" />
    <label for="toDate">To:</label>
    <input id="toDate" type="text" name="toDate" data-dojo-type="dijit.form.DateTextBox" required="true" onChange="dijit.byId('fromDate').constraints.max = arguments[0];" />

  </div>
</body>

</html>
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1 Answer

  1. Editorial Team

    With the new, HTML5-conform attribute data-dojo-type introduced in Dojo 1.6, the way how widget attributes are parsed has changed as well (to validate in HTML5 too). Widget-specific attributes are now in an HTML attribute called data-dojo-props, in a JSON-style syntax.

    To make your example work again, either put the onChange (and required) in data-dojo-props (note that you have to wrap a function around it):

     dojo.require("dijit.form.DateTextBox");
    <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6/dojo/resources/dojo.css">
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6.0/dijit/themes/tundra/tundra.css" media="screen" />
<script src="http://ajax.googleapis.com/ajax/libs/dojo/1.6.0/dojo/dojo.xd.js" data-dojo-config="isDebug: true, parseOnLoad: true"></script>


<body class="tundra">
  <label for="fromDate">From:</label>
  <input id="fromDate" type="text" name="fromDate" data-dojo-type="dijit.form.DateTextBox" data-dojo-props="onChange: function() {dijit.byId('toDate').constraints.min = arguments[0];}, required: true" />
  <label for="toDate">To:</label>
  <input id="toDate" type="text" name="toDate" data-dojo-type="dijit.form.DateTextBox" data-dojo-props="onChange: function() {dijit.byId('fromDate').constraints.min = arguments[0];}, required: true" />

    Or you use the old dojoType instead of data-dojo-type, then the onChange attribute would be parsed. Note that it would not be HTML5-conform, but in my opinion more elegant.

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