Dynamic text

Depending on what you actually want this can be really simple or complicated.
If you just want part of the text in dialog box to change depending on another field value,
make hidden textfield and put calculate code in it to change text depending on that other field value.
Then where you have dialog box code (before code) make variable that point to hidden field that have text that you want,
then where you normaly put text in dialog box just add variable name and thats it.
example: {type: "static_text", name: "Here goes your text"+variable name,},
Also if you use same button to change textfield value make sure to put that code before dialog box.