Hi,
I have managed to create a drop drown list, one of a series of cascading ones. As it does through several areas, then sub-areas etc, I want to have the option of a 'All Areas' option at the top. This has been added, but the problem I have is trying to pass a wildcard parameter back to the TableAdapter for the next dropdown, and to show everything on screen at the start.
The options so far I have tried (albeit unsuccessfully) are:
DropDownList_SampleType.Items.Add(new ListItem("All Sample Types", "%"));
or
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