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Last post Jan 28, 2009 05:55 AM by Zhi-Qiang Ni - MSFT
Jan 22, 2009 02:06 PM|LINK
Hi I created a control in visual basic with 3 dropdownlists in it.
When someone select a value frop ddl1, ddl2 will be filed with data.
I'm using an updatepanel because I don't need to reload the whole site everytime
When dropdownlist 2 is filled and I go to another website using a link and go back by using the browers "back" button my updatepanel doesn't work at all
The selectedvalue from the first dropdowlist can't be read by visual basic.
Even when I change the index nothing happens.
my update panel broke and I need to reload the page to make it work.
I hope I explained my problem clear. Can somebody help me?
Jan 28, 2009 05:55 AM|LINK
AjaxControlToolkit has provided a useful extender CascadingDropDown which can achieve your goal.
Please refer to:
How Do I: Use the ASP.NET AJAX CascadingDropDown Control Extender?
If you insist on using your original logic and save the history of asynchronous page refresh, please refer to this link: