Set Web Checkbox

The Set Web Checkbox building block checks or unchecks a checkbox in an already open browser window when working with web automation.

This block only works with browser windows that were previously opened using the Start Web Browser block.

Fully expanded, the Set Web Checkbox block shows the following properties:

Note: The screenshot on this page uses the Elegance Design , introduced in 2025.3. If you are using an earlier version, your layout may look different.

Quick-start

1. Drag Set Web Checkbox onto the canvas.

2. Connect the block in the flow and specify Set Web Checkbox To Find and Set Checkbox state . Optionally set Source element or Browser window , and adjust Scroll to find / await options and timeout-related settings if needed.

3. Run the flow when it's ready.

Building block parameters

Parameters

• Block header : The green input connector triggers the block to start executing. The green output connector triggers when the checkbox has been set. You can rename the block by double-clicking the header text.

• Set Web Checkbox To Find : Contains the locator for the checkbox element to be set. Capture it by right-clicking and selecting Capture new web element . You can update it via Edit web element or remove it via Clear web element .

• Set Checkbox state: Controls whether the checkbox should be checked or unchecked.

• Set check: Checks the checkbox.

• Set uncheck : Unchecks a checkbox that is already checked.

• Found element : Outputs the found checkbox element in the browser window. This can be reused as a Source element in other blocks to narrow down later searches.

• Not found : Triggers if the checkbox element is not found before the timeout behavior completes. This is typically used to branch the execution flow or explicitly fail a case by connecting it to a Fail block.

• Position found : Outputs the browser canvas position where the element was found as X, Y coordinates. The top-left corner of the browser canvas is 0, 0 . Elements that are not visible typically report 0, 0 . Use the expander to work with X and Y separately.

• Area found : Outputs the browser canvas position and size of the found element as X, Y, Width, Height , starting from the upper-leftmost pixel. The top-left corner is 0, 0 . Use the expander to work with position/size and nested sub-properties separately.

• Attributes : Outputs all attributes on the found element as key--value pairs (including standard HTML attributes like class, style, href, and custom data-xxx attributes). If you only need one attribute, Get Web Attribute can be used instead.

• CSS values : Currently unused.

• Visible : Returns True if the found element is visible.

• Tag name : Outputs the tag name of the found element (for example div, input, button).

• Source element : Limits the search to only occur inside the provided source element. This is useful when you first find a container (like a table) and then search inside it.

• Browser window : Specifies which browser window to search in. Multiple browser windows are not supported by Selenium Grid or external cloud providers such as Sauce Labs and BrowserStack .

• Use occurred : Selects which occurrence to use if multiple matching elements are found. Select All to iterate through all occurrences.

• Current index: Outputs the current index while iterating.

• Completed : Triggers when all occurrences have been iterated.

• Count : Outputs the total number of found web elements that match the locator.

• Default timeout : Controls whether the block uses the default timeout from the flow settings or a custom timeout value.

• Timeout (sec) : Sets the maximum time spent searching for the checkbox element before giving up and triggering Not found . This field is used when Default timeout is not selected.

Note: All cases have a global timeout configured in the Settings panel. This is unrelated to the timeout of a single building block. However, a running case will automatically be cancelled if it runs for longer than the global timeout.

• Scroll to find : When set to a value other than None, the block scrolls while searching for the checkbox. This is useful in scrollable pages where elements load asynchronously (for example infinite scroll).

• Max repeats: The maximum number of scroll attempts before the block stops searching.

• Amount: How much scrolling is performed on each repeat.

• Delay (sec) : The delay in seconds between each scroll.

• Require valid imgs : When enabled, locators targeting images (img tags) are additionally validated to ensure the image loads correctly by checking that the image source returns an HTTP 200 response.

• Scroll into view : When enabled, any found element is automatically scrolled into view.

• Await not found : When enabled, the block assumes the element is currently present and waits until it can no longer be found before proceeding. This can be useful when waiting for a "Loading..." indicator to disappear.

• Await DOM change : Delays searching until there have been no changes to the page's DOM for a specified period (for example, three seconds). Regardless of this checkbox, the search proceeds after waiting a maximum of 30 seconds.

• Await Timeout : The number of seconds the DOM must have had no changes before proceeding.

• Await Requests : Delays searching until there have been no active XHR requests for a specified period (for example, three seconds). Regardless of this checkbox, the search proceeds after waiting a maximum of 30 seconds.

• Await Timeout: The number of seconds no XHR requests must have been active before proceeding

Resources