I want to open a combobox from my program on a mobile program (.net cf 3.5).
but there doesn't exist a property like cmbBox.DroppedDown
in compact-framework
Accesing WinCE ComboBox DroppedDown property (.NET CF 2.0)
But I don't want to get the current state, but to set it.
How do I perform this?
You can take the same approach as in the referenced article and send it a Message.
Instead use const int CB_SHOWDROPDOWN = 0x14F
for your message.
From that reference sample, modified a bit:
Message.Create(comboBox.Handle, CB_SHOWDROPDOWN , (IntPtr)1, IntPtr.Zero); // to open
Message.Create(comboBox.Handle, CB_SHOWDROPDOWN , (IntPtr)0, IntPtr.Zero); // to close