Adding a dropdown to a button in C#

Question

Hi All I am trying to implement a dropdown-button control in C# which provides a list of actions. Many Microsoft applicaitons use this kind of control. One example is in the file open dialog box (goto File -> Open -> File). The Open button has a dropdown icon that gives two choices ('Open' and 'Open With'). Anybody has any idea of how to implement this control?

Len La Sala · Answer

You could create a custom control based on the button control and add additional propereties and override the button OnClick event One of the properties could be the list of options you talk about and a ListBox to take the options then when the button is clicked a list box shows bellow the button to expose the options your button control would also have the ListBox OnClick event where you would do your processing. Does this make sense?

Ven Kates · Answer

I don't want to use dropdown list. i just want to use button with additional options

Koushik De · Answer

I think u can implement such by setting an event handler to the OnSelectedIndexChanged property of the dropdown list.