Dynamic update
Author
Hi
I am just wondering how can I use ASP to update the values in a dropdown list as user change the values of the other dropdown list? Can this be done in ASP or this can only be done in javascript?
Thanks
Author
I believe this is a programming issue and I believe I have posted my question under the appropriate category - General Programming: The place for discussing programming issues not related to games...
this can be done without javascript if the drop down box you are changing causes a post back ...
Author
sorry, can you please explain what post back means. An sample example code would be very helpful
Thanks for your help
Thanks for your help
Quote:Original post by Tiger99
sorry, can you please explain what post back means. An sample example code would be very helpful
Thanks for your help
It means when you change the first drop down the page causes an event which will reload the page, call to 'Page_Load'. You need to make the drop post back, in the properties window in VS.NET if u use that.
The drop down will have something like a 'SelectedIndex_Changed' event. Put your code to update the other drop down in that, make sure in your Page_Load you do the first initializations in a block like this
if (!IsPostBack)
{
// do
}
btw what are u using, is this ASP.NET with VB.net /C# or just asp
Hope that helped
This topic is closed to new replies.
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