Hello, I am creating my custom control with the definition of proprierty

I read this page Advanced Design Definition to customize the design of my custom control.
This is my code (this generates a table with the number of rows, how many elements are the titololink propriety )
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core">
<xp:table style="width:100.0px;border-color:rgb(235,235,235);border-style:solid">
<xp:tr>
<xp:td style="background-color:rgb(209,241,248)">
<xp:span
style="font-weight:bold;background-color:rgb(184,228,245)">
</xp:span>
<xp:span style="font-weight:bold">
<%=this.titolo%>
</xp:span>
<xp:span style="border-color:rgb(192,192,192)">
</xp:span>
</xp:td>
</xp:tr>
<%for(i=0;i<this.titololink.length;i++){%>
<xp:tr>
<xp:td><%this.titololink[i]%></xp:td>
</xp:tr>
<%}%>
</xp:table></xp:view>
Lines are displayed in my XPages .. but this code this.titololink[i]each line is empty and does not display the contents of my proproerties .... (I don’t understand what type is)
Does anyone have any ideas?
Tnx a lot
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