i want to create a program with has a timer, which is changeable i.e timer cam be manually changed and when the timer is up it copies a value from a text box to a label.

e.g. if timer is set to 1 min and when timer is up it copies the value in text box 1 to label1, and it keeps looping until it reaches 5 min.

the value/data in the text box is linked to a external file.

any ideas?