For example, I have two optionsets: optionsetA, optionsetB, the selected value in optionsetB should be based on optionsetA. Method 1: Using the value property: The value of the selected element can be found by using the value property on the select element that defines the list. Definition and Usage. To get the selected option value first, we need to access the element that are currently selected. Questions: How do I get the selected value from a dropdown list using JavaScript? About Development / Customization / SDK Microsoft Dynamics CRM 2016 Now, we need to get the above element’s value when a particular