Passing info to a new windows form

[dogdaynoon]

Hopefully this will be easy for someone here.
I am wanting to pass and append a string into a textbox in a new windows form.
Currently I am trying the following...

in first form on a button press do this:

NewForm newForm = new NewForm("text");
newForm.Show();

in second form I am doing like this

 public NewForm(string textFromForm1)
        {


            if(textFromForm1 != null)
            {
            
            this.NameOfTextBoxInForm2.AppendText(textFromForm1);


            } else 
            {
                MessageBox.Show("No text received!");
            }
            
        }

I am receiving the following error:
An unhandled exception of type 'System.NullReferenceException' occurred in ProgramName.exe
Additional information: Object reference not set to an instance of an object.


Troubleshooting tips:
Check to determine if the object is null before calling the method.
Use the "new" keyword to create and object instance.
Get general help about this exception.

 

[dogdaynoon]

I thought I would post the answer to this just in case anyone else needed it. Not sure how to mark answered...?

If you overload or change the existing constructor, a call to InitializeComponent() is required at the beginning. Otherwise, controls are not being created, hence the Exception.
got the answer from this thread here: https://social.msdn.microsoft.com/F...nfo-to-a-new-windows-form?forum=csharpgeneral