In a dialog I have 4 Text boxes. If I write any thing in first text box I want to same text box in other text boxes with some append values. Basically I want to do some operation on text change event of first textbox.
I recommend you have the first text box on one dialog, and the other text boxes on other dialogs.
So, you'll have 4 properties:
BASE_PROPERTY
DERIVED_PROPERTY1
DERIVED_PROPERTY2
DERIVED_PROPERTY3
The text box with BASE_PROPERTY will be placed on some dialog. On that dialog's Next button, you will need to create a custom action to populate the values of all three derived properties the way you want to. A vbscript custom action could do it.
It is important for BASE_PROPERTY to reside on a dialog different than the derived properties reside on. This is because of the fact that Windows Installer does not properly update them if on the same dialog.
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