title: c# Calling a form from another project
body: <p>Got a problem with calling my forms from other projects.
  I have a solution with 3 projects. Now for example I want to call a form with a buttonClick from project A when I'm on project B.</p>
  
  <p>This is easy since I just put the folder in my solution (with my other projects) then in VS, I just add this project to my solution explorer and then I make a reference from project A to project B. Now i can call forms like this (when in project A):</p>
  
  <pre><code>    projectB.Form1 f1 = new projectB.Form1();
      f1.Show();
  </code></pre>
  
  <p>But when i try to do the same with project A when I'm in project B</p>
  
  <pre><code>    projectA.Form1 f1 = new projectA.Form1();
      f1.Show();
  </code></pre>
  
  <p>Then I get an error message saying that projectA doesn't exist etc.</p>
  
  <p>How can I resolve this? Also make a reference to project A from project B ?..</p>
  
  <p>Thanks in advance</p>