Question

Can anyone give me an example of a regular expression for must be loger than {n} and must include at least 2 digit integer

I have the following for now but it only validates the length;

<asp:RegularExpressionValidator ID="myTxtVal" 
    runat="server" ControlToValidate="myTxt" 
    ErrorMessage="Input Is Too Short" ValidationExpression=".{15}.*" />

Answer 1

<asp:RegularExpressionValidator ID="myTxtVal"
  runat="server" ControlToValidate="myTxt"      
  ErrorMessage="Input Is Too Short" ValidationExpression="^(?=.*?\d{2}).{15}" />

Edit: fixed for 2 digit integer. Not the same as ‘has 2 digits’… 😉
It uses the lookahead to validate that there are at least two digits in a row, then the .{15} part to match 15 characters. It doesn’t need to match the rest of the string, so I removed the .*.