Passing values from another form Winforms [duplicate]

Answer 1

There's a number of ways you could do it:

• Share a model object between form1 and form2.
• Have form2 expose an event that form1 subscribes to. Pass the values in the event args.
• Have form2 expose the value as a public property that form1 reads after form2 closes.

Answer 2

You can just have a public property on Form2 that Form1 will access when it needs to see the value. Something like this:

using(Form2 form2 = new Form2()) 
{
  if(form2.ShowDialog() == DialogResult.OK) 
  {
    form1Logger(form2.NumberWritten);
  }
}

The property can be something as simple as this:

class Form2
{
     public String NumberWritten 
     {
         get{return textBox.Value;}
     }
}