How to Set the Selected Value of a Drop-Down List Using jQuery?

Setting the Selected Value of a Drop-Down List with jQuery

In jQuery, setting the selected value of a drop-down list is similar to using regular JavaScript, with a few key differences.

To set the value of a drop-down list to a specific known value, you can use the following code:

$("._statusDDL").val(2);

This code selects the element with the CSS class _statusDDL, which is the drop-down list you want to modify. The val() method is then used to set the value of the selected option to 2.

However, in some cases, you may encounter an error stating "Could not set the selected property. Invalid Index" when using this approach in Internet Explorer 6. To resolve this issue, ensure that your code runs at a slower speed to allow for proper execution.

Another option to .change() the selected value is:

$("._statusDDL").val('2').change();

This addition will trigger the change() event after setting the value, ensuring that the selected option is displayed correctly in the frontend.

jQuery's documentation specifies that the val() method can both check and select values for radio buttons, checkboxes, and select options. By utilizing this method, you can effectively set the value of a drop-down list to a desired option using jQuery.

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