multi-select

(sorry, there are several item here but none seems to allow me to get this working.) I want to create a DropDownList which allows multiple selection. I am able to populate the list but I can't get the currently selected values to seem to work. I have the following in my controller: ViewBag.PropertyGroups = from g in db.eFinGroups where g.GroupType.Contents == "P" select new { Key = g.Key, Value = g.Description, Selected = true }; ViewBag.SelectedPropertyGroups = from g in company.Entities .First().Properties.First().PropertyGroups select new { g.eFinGroup.Key, Value = g.eFinGroup.Description }

The built-in WPF TreeView control does not allow for multi selection, like a ListBox does. How can I customize the TreeView to allow for multi selection without rewriting it. When I consider overriding the fundamental behavior of a control, like a treeview, I always like to consider the usability and effort associated with my decision. In the specific case of a treeview I find that switching to a listview in combination with zero, one, or more controls makes for a more usable solution that often is easier to implement. As an example, consider the common Open dialog, or Windows Explorer

What I was expecting from a multiselect behaviour is to behave just as normal as long as no special key is pressed. I mean, if you have a row selected and click on another with no other key pressed, then it should select the new one and deselect the old row. Well, jqGrid’s standard options lets you choose between always regular behaviour, or always multiselect. You can’t have multiselect only when a special key is pressed. Is there a way I can achieve this? jqGrid has several selection strategy, all using multiselect:true . To demonstrate there I created three example: If you define only