iam using visual studio 2022 windows forms c++ , ia was swiching from main form to another form (form2) and it was working good but i deleted the second form and now trying to navegate to third form (form3) but it shows small embty form)

Question

/* i use that way at form 1 code
first initialize form3 :
*/

include"Form3"

/* and then write that code at button click order*/

Form3^ obj = gcnew Form3();

obj->ShowDialog();