Question Highlighting Text

[VentureFree]

I've got a form (aspx) with a survey. One question in particular requires a text answer with less than 50 chars. I've set

TextBox1.MaxLength = 50

but it still seems to allow the entry of more than 50 chars (I would have thought that at 50 chars it would stop accepting characters, but apparently not). Since that doesn't work, I figured I'd highlight all text past 50 chars on the TextChanged event to make it obvious to the user that they need to change at least that much of their answer. How do I go about doing that? I've seen other places mention using

TextBox1.Select(#, #)

but that option doesn't seem to be available to me. Any idea why?

 

[petersgyoung]

I think the easiest way is to use RegularExpressionValidator control.

 

[xRage]

regex validator is best way but u can

textchanged event

if textbox1.text.length > 50 then
label1.text = "Maximum 50 characters please!"
end if
label1.text += " - You currently have " & textbox1.text.length & " characters"
end sub

i dont see the point in selecting the last part of the string :/