Headers are used for data output once in the beginning of a list, page or column. Header is used for this purpose and it must be located inside DataBand. RepeatEveryColumn and RepeatEveryPage properties serve for the heading repetition mode.
Example of the list heading usage:
dataBand3.DataSource = Employees; textBox1.Text = "Name"; textBox2.Value = dataBand3("EmployeeName");