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Impossible to add child row on the client side if parent row is emtpy
posted

 

I use WebHierarchicalDataGrid with two levels.

I need to implement following scenario:

1. The grid's initially populated only with first-level rows. (the rows have no child rows)

2. User does some action (for ex. clicks on a button) and a child row is added to the selected parent row.

I've done it in following way:

       var selectedRow = getSelectedRow();
        var childGrid = selectedRow.get_rowIslands()[0];
        var row = new Array("");
        childGrid.get_rows().add(row);

This approach works fine if parent row already has at least one child row, but if there is no child rows I get null reference exception: selectedRow.get_rowIslands() returns  empty array.

Please help!

 

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  • 33839
    Suggested Answer
    posted

    Hi Alexander,

    The child grid has to actually exist on the client for this to work.  If you have the RowAdding behavior turned on in the child, then an empty grid will be made.

    regards,
    David Young 

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