We have a number of custom controls attached as RadDropDownButton items (one item per drop down button).
Some of the controls have a scrollable list. Expectation would be that the mousewheel would scroll the list when the control is displayed, but what happens is the popup disappears. We've been trying to find out how to alter this behaviour, without success. There is a similar thread (
http://www.telerik.com/forums/radtreeview-in-raddropdownlist) that applies to a RadDropDownList, but the same actions for the RadDropDownButton aren't working.
Simple reproduction of the issue is adding a RadDropDownButton to a form and initializing with this code:
var tree = new RadTreeView();
for (var i = 0; i < 100; i++)
{
tree.Nodes.Add(new RadTreeNode("Item " + i.ToString()));
}
var hostItem = new RadMenuHostItem(tree);
radDropDownButton1.Items.Add(hostItem);
Any suggestions anyone may have would be greatly appreciated!