Reuse code from class to class

Question

I have 2 winforms called AppNamespace.MYForm and AnotherNamespace.AnotherForm.
They both have a button.

When the user click on the button of AnotherNamespace.AnotherForm I would like to perform a click on the button located on AppNamespace.MYForm.

However, there is a constriant that AnotherNamespace cannot use AppNamespace.
This prevents me from doing :

AppNamespace.MYForm firstForm = new AppNamespace.MYForm();
firstForm.button.PerformClick();

Any ideas?

Answer 1

Manually executing event of any control is a bad practice. Create separate method and execute it instead.

You can create interface then implement it to both forms. The interface should contains a method PerformClick.

public Interface IMyInterface
{
    void PerformClick(string _module);
}

public class Form1 : IMyInterface
{
   public void IMyInterface.PerformClick(string _module) 
   {
      //CODE HERE
      if (Application.OpenForms["Form2"] != null && _module != "Form2")
          ((IMyInterface)Application.OpenForms["Form2"]).PerformClick(_module);
   }

   private void button1_Click(object sender, EventArgs e)
   {
       this.PerformClick(this.Name);
   }
}


public class Form2 : IMyInterface
{
   public void IMyInterface.PerformClick() 
   {
      //CODE HERE
      if (Application.OpenForms["Form1"] != null && _module != "Form1")
          ((IMyInterface)Application.OpenForms["Form1"]).PerformClick(_module);
   }

   private void button1_Click(object sender, EventArgs e)
   {
       this.PerformClick(this.Name);
   }
}