32.9 I have two forms. How can I access a textbox on one form from the other form?

One way to do this is to make the TextBox either a public property or a public field. Then you will be able to access it through the instance of its parent form. So, if TextBox1 is a public member of FormA and myFormA is an instance of FormA, then you can use code such as

anywhere myFormA is known. Here is a VB project illustrating this technique.