aspx app fails for some people only

[G Dean Blake]

I have what I thought was a working aspx app. But on some of my clients
machines it does not work.

I have found that it is failing in, for instance, a
ListBox1_SelectedIndexChanged event where:

myString = ListBox1.SelectedItem.ToString()

produces nothing in the string. I know the listbox is full of items.

What kind of browser settings could cause my app to fail on this system.
This user says they are using I.E.

Thanks,

G

 

[Marina]

Maybe those users didn't pick an item. So even though the listbox is full of
them, they did not select one.

 

[G Dean Blake]

If they didn't select one, the SelectedItem event would not have triggered.
G

 

[Marina]

Oops, didn't read the post carefully enough as far as the event this is
hapenning in.
I don't know of a particular setting. I would get info on the OS version and
IE version of clients having this problem.

In the mean time, you can change your code to make sure there is a selected
item, to at least give the user a friendly error message in case they are
one of the exceptions.