dataTable: value-action called 3 times

[Nahrwold, Helge]

Hi all,

i've a little question again! :)

There is a dataTable in my mask:

<t:dataTable id="auftragTable" 
        border="0"
        bgcolor="#C0DAEA"
        styleClass="table"
        style="width: 100%;"
        cellspacing="1"
        headerClass="table_header"
        rowClasses="table_row_1, table_row_2"
        rowOnMouseOver="highlightTableRow(this);"
        rowOnMouseOut="unHighlightTableRow(this);"
        var="auftragKopf" 
        value="#{dispoAuftraege.auftragKoepfe}" 
        varDetailToggler="detailToggler">

Now I've seen in debug that the function #{dispoAuftraege.auftragKoepfe} in
value is called 3 times on load.
Why this?

Greets,
Helge