Keep a textbox variable using timer

[DioRani]

Hey guys.. is it possible if i wanna save a textbox value in a variable using timer?

for example

string text

when timer interval is 10s
{
textbox1.text = text
textbox1.text = newline
}

when timer2 interval is 15s
{
textbox1.text = ""
}

or something like that.. its like auto keep textbox value.. or does you guys got any other idea? Thx