trouble with add instance

Andy Knipp

OK, so I am building a table, my DCT is a replicant of Row with children named Column.

Something like this:

[html]

Row

Column
Column

Text





[/html]
The idea is that if I have 5 columns in the 1st row, when a new row is added, it should have 5. I am not worrying about someone added/removing in the middle yet. But I want when a Row is added, to add the # - 1 to the new Row.

I have a OnReplicantAdded:

 IWEventRegistry.addItemHandler("/Root/Table/Row","onReplicantAdded", addCol);

which runs:

function addCol(item)
{
 var Xpath = item.getName();
 var firstRowItem = IWDatacapture.getItem(Xpath+"/../Row[1]/Column");
 var numMainCols = firstRowItem.getChildren().length;
 var newCol = numMainCols-1;
 item.addInstance(newCol);
        alert("Done adding "+newCol+" cols to "+item.getName());
 return true;
}

It tells me Done adding 3 cols to /Root/Table/Row[2]

but I get the one default.

Tips/Pointers/RTFMs appreciated

Andy