how can I limit the # of characters to display for html.encode?
<%= Html.Encode(item.LastName.Substring(1,30))%>
error: Index and length must refer to a location within the string.
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We're not automatic syntax highlighters to determine which language is itkolypto– kolypto2009-11-26 01:50:29 +00:00Commented Nov 26, 2009 at 1:50
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3 Answers
You need to check the strings length is greater than 30, otherwise you are specifying a length which will fall off the end of the string...(I've also changed your start index to 0 assuming you didn't mean to leave out the first character)
<%= Html.Encode(item.LastName.Substring(0,
item.LastName.Length > 30 ? 30 : item.LastName.Length))%>
1 Comment
Andy West
You're missing a closing parenthesis. ;)
You could also do something like
<%= Html.Encode(item.LastName.Substring(0, Math.Min(item.LastName.Length, 30)) %>
to save some bytes
Comments
<%= Html.Encode(item.LastName.Substring(0, item.LastName.Length > 30 ? 30 : item.LastName.Length))%>
If you want to check for null, do this instead:
<%= Html.Encode(
item.LastName == null ? string.Empty :
item.LastName.Substring(0, item.LastName.Length > 30 ? 30 : item.LastName.Length))%>
2 Comments
Kyle Trauberman
Indexes are 0 based, while .Length is 1 based. >= won't work in this case. Use > instead.
dmarkez
Thanks folks for all of the replies. Pardon me but what if the string is null?