问题
alt text http://img375.imageshack.us/img375/9830/combobox.png
Setting the IsHitTestVisible="false" has the effect of having the whole ComboBox's drop area unresponsive to clicks. The same goes for setting to true.
With a ComboBox I don't have to create any storyboard to make ComboBox animation like but I found this issue.
How can one make the ComboBoxItem area unclickable except for the button within?
回答1:
Sounds like you should be creating a custom control that uses a popup window, that just looks like a combobox, however you can do what you wanted:
- Put your buttons inside a grid, inside a single RadComboBoxItem
- Set the grid background colour to 1% alpha so it is hit-test visible yet unseen
- Add a Grid_MouseLeftButtonUp event handlern to the grid
- In the handler set e.Handled to true so the mouse up is eaten
Make sure you close the combobox popup when you get your button presses.
Hope this helps.
来源：https://stackoverflow.com/questions/3234650/allowing-clicks-on-button-in-comboboxitem-when-ishittestvisible-is-false