How to transfer the text from dynamically generated user control to a textbox

Question

I have a windows form in which I have a button1 and when that is clicked a UserControl that is added dynamically to the code is this:

Answer 1

I would do this with events.

Create a class that inherits from EventArgs: (I prefer VB, you can traslate)

Public Class ControlEventArgs
  Inherits EventArgs

  Public Property Value1 As String = String.Empty
  Public Property Value2 As String = String.Empty
  Public Property Value3 As String = String.Empty
  Public Property Value4 As String = String.Empty

End Class

Then in your Control add the event:

Public Event ValueSubmittal As EventHandler(Of ControlEventArgs)

In your Button2_Click handler:

RaiseEvent ValueSubmittal(me, new ControlEventArgs With {.Value1=comboBox1.Text, .Value2 = comboBox2.Text, .Value3 = textBox1.Text, .Value4 = textBox2.Text}

And in your form where you dynamically create the controls you need to hook up the event handler:

AddHandler myNewControl.ValueSubmittal, AddressOf ValueSubmittalHandler

And the ValueSubmittalHandler:

Private Sub ValueSubmittalHandler(sender as Object, e As ControlEventArgs)
  formControl1.Text = e.Value1
  formControl2.Text = e.Value2
  '  etc...
End Sub