The list of selected options is an HTMLCollection object with one entry per currently selected option. An option is considered selected if it has an HTMLOptionElement.selected attribute. In my HTML, I have a with three elements. Teams. In JavaScript, selectedIndex property is used to set the value of a select box element. What you do is use the “selected-selector” of jQuery to do it in a single line. In a Javascript combobox you can set a selected value as you wish. The read-only HTMLSelectElement property selectedOptions contains a list of the elements contained within the element that are currently selected. The text property of an option is the content of the option element.. The pre-selected option will be displayed first in the drop-down list. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I want to use jQuery to check each option's value against a Javascript var. Property Description; length: Returns the number of elements in the collection. The selectedIndex property sets or returns the index of the selected value in a drop-down list. The selected attribute is a boolean attribute. Note: This property is read-only selectedIndex: Sets or returns the index of the selected element in the collection (starts at 0) Note: If no option is selected, the selectedIndex property will return -1. When present, it specifies that an option should be pre-selected when the page loads. Note: If the drop-down list allows multiple selections it will only return the index of the first option selected. This tutorial explains how you can perform common operations on select element with vanilla Javascript - adding/deleting options or getting/setting the selected options. The selectedIndex property sets or returns the index of the selected option in a drop-down list. Javascript Select options. So many wrong answers! Using a for Loop to Obtain Selected Option. The options property of the select list is a node list of all the option elements contained within it. Lets say I have the following select element and I need to dynamically select the option with a value of 3, which would be the “Peach”. To specify the value that a form field should revert to upon resetting the form, use the following properties: Checkbox or radio button: defaultChecked Any other control: defaultValue; Option in a drop down list: defaultSelected So, to specify the currently selected option as the default: The issue that you are having is because you are trying to modify the Status Reason system field. Note: The value "-1" will deselect all options (if any). You have a select element, and you need to “select” one of its options based on one of its values. The selectedIndex property of the select list specifies the location of the selected option in the node list. Q&A for Work. Syntax: Set index: selectObject.selectedIndex = number Return index: selectObject.selectedIndex. Note: Integer number is used for Index at the value place. Tip: The selected attribute can also be set after the page loads, with a JavaScript. When you click the button, you can see the color "Orange" is selected. It seems that in CRM 2015 or 2015 SP1 Microsoft modified the way that the Status Reasons are handled, and although the field might seem like an Option Set, the Option Set scripts methods are not allowed. Definition and Usage. The index starts at 0. This Javascript post was going to be about language selection in FCKEditor from a drop down box as a follow up to the previous FCKEditor post but I've decided to postphone that post until Friday and look at how to add options to an HTML drop down box with Javascript, because the next FCKEditor post will be doing just that. 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