Limit amount of characters in string displayed in listview markup

In the code below I am binding a label

How can I change the markup so it just displays say first 30 characters?    

Also (although not essential) if the string is more than 30 characters then display  "......"
<asp:Label ID="news" runat="server" Text='<%#Eval("NewsText")%>'></asp:Label>

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Ivo StoykovCommented:
try this

Ivo Stoykov

<asp:Label ID="news" runat="server" Text='<%#Eval("NewsText").ToString().Substring(0, 30)%>'></asp:Label>

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mugseyAuthor Commented:
Infact if I enter text that is less then 30 characters I get error

Index and length must refer to a location within the string.
Parameter name: length
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