How to show dialogbox

Hi there,

I´m trying to port a windows game to linux and didn´t find a way to show a dialogbox on linux where the user can enter text and which has an ok and cancel button. On Windows 7 I use Interaction.InputBox from the visualbasic-namespace which doesn´t exist on mono for linux. Windows.Forms doesn´t seem to exist on a monogame cross platform project either so I´m out of luck maybe? Does anybody know a method to show a messagebox with an input field and a few buttons on Linux?

Thank you,