无法在dojo中读取未定义的属性“set”

Question

i'm using the set property for enabling and disabling the button based on the checkbox click..while compiling getting error like this. "Cannot read property 'set' of undefined" can anyone please help.thanks in advance.

JS:

if(dojo.byId('pickLstValChkbox').checked === false){
    dijit.byId('isK9Acccepted').set('disabled', true)
}
else{
    dijit.byId('isK9Acccepted').set('disabled', false)
}

HTML:

<input type="CHECKBOX" name="" dojoType='dijit.form.CheckBox' id="pickLstValChkbox" value="CONFIRM_CHECKED">
<button class="defaultButton" dojoType="dijit.form.Button" id="isK9Acccepted">Accept</button>

Answer 1

This issue occurs, when you are trying to access dijit controls before parsing. use dojo.parser.parse(); before doing anything. more details can befound here. https://dojotoolkit.org/reference-guide/1.6/dojo/parser.html

Also, which version of dojo are you using? Looks like you are using legacy way of coding. I would suggest you migrate to AMD style.

Answer 2

First thing is to call parser.parse() ( create and render dijits )

Then to access your dijit you have to use dojo/ready to ensure that all dijit's are loaded and rendered

In your case you want that when the checkbox is checked (unchecked ), you enable (disable) the button so, you have to use a change event on the checkbox dijit

note that modern dojo uses data-dojo-* [ type, event , id ]insted of dojoType or dojoEvent ... in its html attrib .

here is a fiddle that may help you : Fiddle