How to pass this variable of checkbox from java method to JavaScript method using this variable of checkbox, but i am not getting correct output

Question

I need to pass checkbox Boolean value(True or False) from below java method to java script function.

Java Method::

M1() {
  generatedXML.append("<div id=checkboxes> ");
  generatedXML.append("<input type=checkbox ");
  generatedXML.append(" onchange=\"setValue('");
  generatedXML.append(obj);
  generatedXML.append("','");
  generatedXML.append('this');
  generatedXML.append("');\"");
}

JavaScript function::

function setValue(obj,refr) 
{
  alert(refr.checked); // i think it will alert true or false??
  //Need Boolean value of checkbox 
}

Hooch · Accepted Answer · 2016-06-08 06:07:01Z

1

You should add an id attribute to the checkbox and in the javascript access the checkbox itself by its own id. Something like

document.getElementById('checkIdHere');

answered Jun 8, 2016 at 6:07

Hooch

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Comments

Mairaj Ahmad · Accepted Answer · 2016-06-08 06:21:41Z

0

Assign your checkbox with an ID and in onchange function access checkbox with that id or you can pass the instance of checkbox to onchange function and directly access the value of checkbox.

var value = document.getElementById("chkTest").checked

And if you want to access value without id than pass this to onchange function from java like (syntax may not be correct please ignore as i don have editor for this)

generatedXML.append(" onchange=\"setValue('");
generatedXML.append(obj);
generatedXML.append("','");
generatedXML.append(path);
generatedXML.append("',this);
generatedXML.append(");\"");

And in javascript do this

function setValue(obj,path,chkBox) {
var value = chkBox.checked;
}

answered Jun 8, 2016 at 6:21

Mairaj Ahmad

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9 Comments

Ankur Kunal Over a year ago

Thanks for your answer. but i am facing syntax problem i.e how to pass 'this' from this method. i am trying to pass like generatedXML.append(this); , but in javascript i am getting undefined value.

Mairaj Ahmad Over a year ago

have you changed the javascript function as well ?

Ankur Kunal Over a year ago

//generatedXML.append(this); function setValue(obj,path,refr) { alert(refr.checked); // i think it will alert true or false }

Mairaj Ahmad Over a year ago

Ok may be this is being used of java try to surround it in single qoutes

Ankur Kunal Over a year ago

you mean like this? generatedXML.append('this');

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