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Want to set cursor position in Spark textinput control in Flex

I use Flex 4.5. I want to set cursor position based on integer variable. For example if my variable value is 5 then cursor in textbox will point to position 5. So there is any way to achieve this??

Thanks in Advance.

 textInput.setFocus();
 textInput.selectRange(caretPosition, caretPosition);

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