Hello
Did You tried pointing both the fields to the same Node
Right Click on the Second Text box and select Change Binding and Bind to
Text Box 1
Hope this is what you are looking for

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Kalyan Reddy
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> i am using microsoft infopath 2003,and in same form after preview,i want
> that value of textbox1 should get automatically in textbox2 on after change
> event of textbox1.how to do that.