WPF Binding rows of datagrid together

I have a class as follows

class DataGridItem
{
    public bool IsSpecial;
    public string Symbol;
    public double Weight;
}

An editable datagrid is bound to a collection of objects of this class. What开发者_JS百科 I need to do is to bind several rows of the datagrid together. That is, whenever IsSpecial is true, the Weight field of all rows must be the same. If I edit one row, it has to automatically modify all other rows where IsSpecial is true. How can I do this?

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You can subscribe to the CellEditEnding/RowEditEnding and the InitializingNewItem events and change all the items in there. Remember to call the PropertyChanged handlers for every property changed so the grid does update!