Tizen.Net is currently in preview version. Afaik currently you cant deploy Tizen.Net app in real device as current tizen devices are not “dotnet” enabled . Only you can run .net application in Emulator.
Currently to publish your app in tizen store you need to develop it in Tizen native or web language.
To know about publishing procedure, check the following link.
To publish your Tizen app in store, you have to maintain its standard by following some predefined Tizen Store validation rules.
To know about validation rules, check the following validation guide