I am building an application in ASP.NET. I use a RegularExpressionValidator in a GridView to validate the length of the contents of a multiline TextBox. As I need to detect new lines as well I cannot use the simple ^.{1,1000}$ but I have to use this: ^(.|\s){1,1000}$ Then very strange things can happen depending on what is the text ...

I am building an application in ASP.NET. I use a RegularExpressionValidator in a GridView to validate the length of the contents of a multiline TextBox. As I need to detect new lines as well I cannot use the simple ^.{1,1000}$ but I have to use this: ^(.|\s){1,1000}$ Then very strange things can happen depending on what is the text ...