trying to communication between two form in different project under one solution

[C# Programming]

hey, i tried to share data between two form in different project under same solution. i have two project(project A,project B) in one solution and i want to send data from project A to Project B. and also at that time i want to activate form from project B and same time wants to close previous form. please help me in this case. i really stuck with it. i am using windows application in C# and doing serial communication.

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