Find out if a checkbox is selected

[Shaun Wiseman]

I have been using .isSelected() method to see if the box is selected
but it doesnt work it returns null for all of them and im not sure how
to fix it. Is there a better way to see if they are selected?

Thanks,
Shaun

[Tarun Kumar]

Could you post snippet of you html and your web driver code?

[Shaun Wiseman]

//Java
//Keeps returning null pointer so try/cath added
try{
web=driver.findElement(By.xpath("//input[@name='GPP']"));
check=web.isSelected();
assertTrue(check);
}
catch (Throwable e)
{}
/////
Html:

<div class="x-form-check-wrap" id="ext-gen316" style="width: 89px;">

<input type="checkbox" name="GPP" id="ext-comp-1065"
autocomplete="off" class=" x-form-checkbox x-form-field" value="GPP">
<label class="x-form-cb-label" for="ext-comp-1065" id="ext-
gen317">GPP</label></div>

[Tarun Kumar]

Don't see any thing obviously wrong. 

I suppose you get null pointer exception at -

 web=driver.findElement(By.xpath("//input[@name='GPP']")); 

Are you sure driver is not null at this line?

[Shaun Wiseman]

Possitive I have checked for it in the line before that and it finds
it no problem.

[Rajat Jindal]

My 2 cents.

Can you confirm if the xpath //input[@name='GPP'] returns just one element. [More then one input element with name 'GPP' may be present in your webpage] or if it returns element at all. Please verify it using, may be, web.getAttribute('GPP').

[Shaun Wiseman]

I have been using findEmelment(By.xpath(" //input[@name='GPP'")). In
the web driver if it doesnt find it it will error and go to the next
test

[Maxim Vorobev]

In same cases isSelected() method doesn't work. If you use IE - open developer tool (F12) and check all node's attributes (include read-only) to find witch of them can be used to identify checkbox state.

2012/5/10 Shaun Wiseman <shaun.w...@gmail.com>

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[Shaun Wiseman]

is there a way around this?

On May 10, 11:39 am, Maxim Vorobev <vmaximw...@gmail.com> wrote:
> In same cases isSelected() method doesn't work. If you use IE - open
> developer tool (F12) and check all node's attributes (include read-only) to
> find witch of them can be used to identify checkbox state.
>

> 2012/5/10 Shaun Wiseman <shaun.wisema...@gmail.com>

[Rajesh Ratakonda]

HI ,

 

Can you try it using the driver.findElement(By.id("ext-comp-1065")).

 

Regards,
Rajesh.

[Shaun Wiseman]

ext-comp-1065 is an auto generated ID. The next time the java servelet
is called it could be ext-comp-????....anything really

[Rajat Jindal]

If you are sure there will always be one element with name GPP, then try following:

driver.executeScript("return document.getElementsByName('GPP')[0].checked;");

It will return true if the checkbox is checked and false otherwise. [Please note that this will skip other validations such as element present but not displayed etc]

[Shaun Wiseman]

No luck. The error that was reported is "null"

[Maxim Vorobev]

1. Be sure that driver finds checkbox properly:

web=driver.findElement(By.xpath("//input[@name='GPP']"));

web.click();

 

2. If web.click() check/uncheck  checkbox, read my post above,

and take a look into selenium-source:

 /**

* Returns whether the element is checked or selected.

*

* @param {!Element} element The element to check.

* @return {boolean} Whether the element is checked or selected.

*/

bot.dom.isSelected = function(element) {

if (!bot.dom.isSelectable(element)) {

throw new bot.Error(bot.ErrorCode.ELEMENT_NOT_SELECTABLE,

'Element is not selectable');

 } 

var propertyName = 'selected';

var type = element.type && element.type.toLowerCase();

if ('checkbox' == type || 'radio' == type) {

propertyName = 'checked';

}

return !!bot.dom.getProperty(element, propertyName);

};

 So, if <input type='checkbox'> hasn't 'checked' property, you can't use isSelected() method and you should find valid attribute and use them.

2012/5/10 Shaun Wiseman <shaun.w...@gmail.com>

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[Mark Collin]

I've not come across .isSelected() not working when it is used properly
(Maxim, please feel free to prove me wrong with some reproducible steps).

The problem appears to be in finding the element, not finding out if the
element is selected or not. Can you show us the HTML so we can see if your
XPath is sane.

Assuming the XPath is sane I suspect the problem is that the element has not
loaded when you are trying to check it, the way around this would either be
to put in an explicit wait, or use implicit waits e.g.:

driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

[Mark Collin]

If there is more than one element that matches a locator Selenium/WebDriver will always return the first instance of the element that it finds.  In this case you would still get a true/false response from .isSelected().

 

 

 

From: seleniu...@googlegroups.com [mailto:seleniu...@googlegroups.com] On Behalf Of Rajat Jindal
Sent: 10 May 2012 11:20
To: seleniu...@googlegroups.com
Subject: [selenium-users] Re: Find out if a checkbox is selected

 

My 2 cents.

Can you confirm if the xpath //input[@name='GPP'] returns just one element. [More then one input element with name 'GPP' may be present in your webpage] or if it returns element at all. Please verify it using, may be, web.getAttribute('GPP').

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[Mark Collin]

I would suggest not executing your own JavaScript instead of using the built in functions supplied by Selenium/WebDriver, they have been written, tried, and tested over a number of years and are going to be much more stable/accurate than anything you hand craft.  If there is a problem with them raise a bug so it can be fixed and you don’t have to maintain your own JavaScript codebase.

 

If you insist on doing this there is little point in using selenium in the first place.

 

From: seleniu...@googlegroups.com [mailto:seleniu...@googlegroups.com] On Behalf Of Rajat Jindal
Sent: 10 May 2012 12:25
To: seleniu...@googlegroups.com
Subject: [selenium-users] Re: Find out if a checkbox is selected

 

If you are sure there will always be one element with name GPP, then try following:

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[Mike Riley]

Shaun,

I have been using WebDriverBackedSelenium for most of my code, simply because I find it a convenient way to get at wrapper methods for WebDriver.  I have been using the selenium.isChecked(locatorString) method and it is working just fine for me.  You might want to give it a try.

Mike

[Maxim Vorobev]

Hi Mark! 

Maxim, please feel free to prove me wrong with some reproducible steps

 

Check this one:

WebDriver driver = new InternetExplorerDriver();

WebDriverBackedSelenium rc = new WebDriverBackedSelenium(driver, "");

driver.get("http://www.thejekels.com/dojo/demo/checkboxtree/");

if (driver.getWindowHandles().size()==0){

throw new RuntimeException("Hello!");

}

String xpath = "//INPUT[@type='checkbox' and @id='cbt_CheckBox_1']";

new WebDriverWait(driver, 5000).until(ExpectedConditions.presenceOfElementLocated(By.xpath(xpath)));

WebElement checkbox = driver.findElement(By.xpath(xpath));

System.out.println("============Before click");

System.out.println("isSelected via webdriver: "+checkbox.isSelected());

System.out.println("isSelected via rc: "+rc.isChecked(xpath));

System.out.println("isSelected via value attribute: "+checkbox.getAttribute("value"));

checkbox.click();

System.out.println("============After click");

System.out.println("isSelected via webdriver: "+checkbox.isSelected());

System.out.println("isSelected via rc: "+rc.isChecked(xpath));

System.out.println("isSelected via value attribute: "+checkbox.getAttribute("value")); 

Output:

============Before click

isSelected via webdriver: true

isSelected via rc: true

isSelected via value attribute: mixed

============After click

isSelected via webdriver: true

isSelected via rc: true

isSelected via value attribute: unchecked

2012/5/10 Mike Riley <lvsk...@cox.net>

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[Mark Collin]

Had a quick look (and it needs more investigation) but I would say that you have a bug with the checkbox implementation there,

 

The checked attribute is not changed when you check/uncheck the checkbox (I manually tested this using firebug), instead it is modifying the value, and a custom attribute called aria-checked.  I haven’t investigated the JavaScript that is being fired by the onCheck event but my guess is that modification of the checked attribute is being suppressed so that the value attribute and the custom  attribute aria-checked is used instead.

 

In this case the checked attribute of the input element is always set so if you check to see if it is set or not it should always return true.  Selenium/WebDriver is doing this correctly and reporting the state of the checked attribute correctly. 

 

There is no bug with Selenium here, there is a bug with the implementation of the checkbox control and by working around it you are effectively coding your test to deal with invalid behaviour rather than getting a bug fixed.

[Shaun Wiseman]

How do you create a selenium object in the web driver?

[Mark Collin]

I would also highlight that the only valid values for the attribute checked are:

 

“checked”

“”

 

It used to be just the presence of a checked attribute that was validated, but to make it XML compliant it had to be modified to have a value.

[Mike Riley]

As easily as this:
selenium = new WebDriverBackedSelenium(driver, baseUrlString);

Mike

[Shaun Wiseman]

Thanks Mike that worked a charm :)

Shaun

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[Satish Kushwaha]

Can anybody tell me how to select the checkbox in MAIL.AOL by using selenium webdriver?