To clarify, I'm using the new Web Forms model binding system in .NET 4.5 which uses the control's SelectMethod property.
This is supposed to manage binding and any type conversions at runtime. What I was missing was the need to pass the CatID in as a value provider from the parent list. This obviates the need for the SelectedIndexChanged event. I've tried following a couple of online examples but I still can't get the data to refresh. Again, debugging shows the correctly selected value for the DropDownCat list and the query is retrieving the correct results. I just can't get the Products list to update on postback. [image: Inline images 1] On 12 August 2013 11:41, Web Admin <[email protected]> wrote: > Yes, that's the problem. The query is correct but the data is not > refreshing. > > How do I re-bind this data when firing the change event? > > Regards, > > Paul > > > On 12 August 2013 11:07, Prashanth Thiyagalingam <[email protected] > > wrote: > >> Looks like you are not rebounding the values back to the dropdown >> >> Cheers, >> Prashanth >> >> Sent from my iPhone >> >> On Aug 12, 2013, at 7:50 AM, "Web Admin" <[email protected]> >> wrote: >> >> Hi all, >> >> I have two dropdown lists on a page, *Category* and *Product*, where >> Product is a child list filtered by the selected Category. >> >> On initial page load this works as expected. >> >> <image.png> >> >> Both lists are populated via Link using the following methods. >> >> <image.png> >> >> >> And the Category dropdown SelectedIndexChanged event just calls >> GetProducts again. >> >> <image.png> >> >> While debugging I can see that the CatID reflects what it's changed to >> and that the items array contains the correct products. But the Product >> dropdown is not being updated. >> >> I'm sure I'm missing something obvious. When I try to explicitly databind >> the control I receive a string conversion exception at line:93. >> >> Regards, >> >> Paul >> >> _______________________________________________ >> ozmoss mailing list >> [email protected] >> http://prdlxvm0001.codify.net/mailman/listinfo/ozmoss >> >> >> _______________________________________________ >> ozmoss mailing list >> [email protected] >> http://prdlxvm0001.codify.net/mailman/listinfo/ozmoss >> >> >
<<image.png>>
_______________________________________________ ozmoss mailing list [email protected] http://prdlxvm0001.codify.net/mailman/listinfo/ozmoss
