Hi,
you can set class or style for your label.
Es:
<asp:label text="..." runat="server"
style="width:200px; height:200px; white-space: nowrap(or normal);
overflow: hidden(or scroll)"
</asp:label>
otherwise
you can break you text in rowdatabound event:
<asp:label text='<%# breakMyString(Eval("_COUNTRY"), 60) %>' />
protected string breakMyString(string inString, int len)
{
string outString = inString;
string suffix = " more...";
if (!string.IsNullOrEmpty(inString) && inString.Length > len)
outString = string.Concat(inString.Substring(0, len - suffix.Length), suffix);
return outString;
}