Thanks for the help.
i've tried to do the thing that you've suggested but it doesn't works yet.
have i made any mistake with the code?
sender, EventArgs e)
( RadChart1.Series.Count > 0 )
i = 0; i < RadChart1.Series.Items.Count; i++ )
RadChart1.Series.Items[i].Name = RadChart1.Series.Items[i].Label.TextBlock.Text;
the text in the legend still with the #%.
Debuging, the property is setted, but it doesn't appear to the legend box.
can you help me?