Verify whether the selection has changed within the OnClick event

Take note: The answer marked as the solution addresses the issues presented in the Title. However, I was able to resolve my underlying issue with type ahead dropdowns by switching to IE8.

I am looking to trigger a postback ("this.form.submit()") when a new selection is CLICKED in a dropdown list, but only if the click actually changed the selection.

The OnChange event will not suffice as I do not want to trigger a postback when the selection is changed using the keyboard in a type ahead dropdown list.

One possible solution might be to use OnChange and then verify if the change was due to a mouse click.

If we can explore both options, I can determine which one works best?

Thank you for your assistance!!!!!

EDIT: More details:

Setting AutoPostback to true will not be effective (do not want to post back when selection is changed using keyboard).

Using onBlur = doPostBack; was attempted, but the outcome was suboptimal. User had to click off the dropdown list after making a selection with the mouse.

To simplify, I want to trigger a postback when both the OnChange and OnClick events occur simultaneously.

Answer №1

During the OnClick event, my JavaScript code will set the ddl value to true.

In the OnChange event, I verify if the ddl value is true, and if so, I trigger a postback and reset it to false.

For the OnKeyDown event, I ensure that the ddl value is set to false. This prevents a postback when clicking on the ddl, unless a selection is made using the mouse. Typing to use the type-ahead feature will not trigger a postback.

Although not the most elegant solution, this method is effective and showcases my creativity.

It is important to note that this solution works in conjunction with a script that activates the type-ahead-ddl functionality during OnKeyDown, moving you to the closest selection when a key is pressed, and performing a postback when the enter key is pressed.

Answer №2

Have you experimented with setting AutoPostBack to "true"?

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