Question

I need to validate the input string of a text box whether it contains any numerical values in between the alphabetic letters and shows error as “it contains numerical value” in asp.net.

Answer 1

You can use

public bool IsAlpha(string strToCheck)
  {
    Regex objAlphaPattern=new Regex("[^a-zA-Z]");

    return !objAlphaPattern.IsMatch(strToCheck);
  }
Regards