So, if I understand you correctly, DataContext represents a row - yes?
If so:
- Are you trying to use binding to populate the fields in your row
editor?
- Does DataContext implement Dictionary?
On Sep 14, 2009, at 7:46 PM, Scott Lanham wrote:
The row/field of a database table is encapsulated in a class called
DataContext. So setSelectedItem will never "see" a null value only a
DataContext object. A custom Dictionary (DataContextList) is used for
ListButtons' list data. When setSelecteItem is called on a
ListButton from
TableViewRowEditor a DataContext instance is passed as the argument.
This is
passed to DataContextList.indexOf. As the ListButtons' list data
does not
contain a DataContext that references a null value, -1 is returned.
If it is important that setSelectedItem throws the exception I can
just
subclass the ListButton to get the behaviour I need.
On Tue, 15 Sep 2009 09:31:54 am Greg Brown wrote:
I modified setSelectedItem to not throw an exception if the object
was not
found in the lists' data.
For any item value, or just null? I think null makes sense, though I
do think an exception is justified otherwise.
Note that you can set the button data to a value that is not in the
list. Maybe that would help?
