C-Sharp (C#) Group: Re: How do I move data from a pop up form back to the main form?

Hey buddy,
   I would strongly suggest you go back to the drawing
board. I can
hint that one of the many problems with the code above is
not
instantiating the form. I understand what you are trying to
do as a
plan, but I do not understand your code. My girlfriend
writes better
code to tell you the truth. Stick to one form calculators
for a little
bit longer! And please don't get offended but right now you
are asking
how to create a nuclear reaction on your first physics class
in high
school!

Marty

anyway if you create a form with name MyDialogForm then you
declare it
like
MyDialogForm dialogInstanceForm  = new MyDialogForm();

if you create a public property/method in the form then you
can call
them
dialogInstanceForm.MyPublicProperty = 10;

or dialogInstanceForm.AddLocation(somelocatininstance);

after you set all those public properties and methods, call
dialogInstanceForm.ShowDialog(this);

in the dialog form code somewhere just say this.Close() and
this will
return the control to the parent.
So the logic flow is
in parent form instantiate the dialog form
set the public properties of the dialog form (like default
text for a
textbox and so forth.)
show the instance as a dialog (.ShowDialog(this))
do whatever you have to do in the instance, saving the
result in public
properties
close the dialog form when  it finishes whatever it is doing
by
this.Close() in MyDialogForm's methods
from the parent folder extract any public properties from
the dialog

Let me give you very generalized and on the top of my head
example
(THIS WORKS ONLY LOGICALLY... NOT SYNTAXICALY!):

public class MyMainForm:Form
{
     public void SomeButton_Click()
     {
        MyDialogForm questionDialog = new MyDialogForm();
        questionDialog.DefaultValue = "Some default
value to show in
textbox on dialog form";

        questionDialog.ShowDialog(this);   //you might need
to convert
this to a IWin32Form or something

        string result = questionDialog.ReturnValue;

        //do whatever you want with the result
     }
}

public class MyDialogForm:Form
{
   private Textbox textbox1 = new Textbox();

   public string DefaultValue="";
   public string ReturnValue="";

   public MyDialogForm()
   {

   }

   public sub MyDialogForm_Show()
   {
      textbox1.text = DefaultValue;
   }

   public sub Button1_Click()
   {
      ReturnValue = textbox1.value;
   }
}