Hello ilovelagar,

You must have recorded the macro. The default property for a Range object is the Value, which will be the result of a formula. The only way to get the formula into the TextBox is to use the Formula property.

Example of Returning a Cell Value to a TextBox
  TextBox1 = Range("C3").Value
Example of Returning theCell Formula to a TextBox
  TextBox1 = Range("C3").Formula       'A1 style
  TextBox1 = Range("C3").FormulaR1C1   'R1C1 style