C#:
Text='<%# Eval(“Longtitle”)==DBNull.Value ? “”
:Eval(“Longtitle”).ToString().Substring(0,Math.Min(400,Eval(“Longtitle”).
ToString().Length))+”….” %>’>
A sample for VB.NET(use IIF function):
Text='<%# IIF(CONVERT.ToString(Eval(“Longtitle”))=””,
“”,Eval(“Longtitle”).ToString().Substring(0,Math.Min(400,Eval(“Longtitle”
).ToString().Length))& “….”) %>’