Changing the data in an edit control

hi all

suppose any data present in an edit box control . i want to change the contents without making any extra buttons so that when the button click occurs, the value is changed and then updated.

i wanna do it without any extra button. e.g. i want to ensure that i check a variable after every second and update the value.

thanx for the help

Iqbal
[387 byte] By [iqbals] at [2007-11-18 1:37:23]