Have been up all night trying to figure this one out. I am using an Infragistics.Win.UltraWinGrid.UltraGrid. The DataSource for the grid is a BindingSource that uses a custom data structure. Binding and property updates are working fine. Grid is readonly.

I want to change the color (toggle) of a row if the underlying value changes. Here is a very simplified snippet of my original code using the recommended InitializeRow event (note, for simplification I am just coloring the whole row for the example, whereas actually I am coloring a cell in my application):

private void ugWatchlist_InitializeRow(object sender, Infragistics.Win.UltraWinGrid.InitializeRowEventArgs e)
{
    if (!e.ReInitialize)
        return;

    Infragistics.Win.Appearance app1 = new Infragistics.Win.Appearance();
    app1.BackColor = Color.Green;
    Infragistics.Win.Appearance app2 = new Infragistics.Win.Appearance();
    app2.BackColor = Color.Red;

    if (e.Row.Appearance.BackColor.Name != Color.Green.Name)
        e.Row.Appearance = app1;
    else
        e.Row.Appearance = app2;

}


However, the color change works only once (and rows turn red on the firs t update and stay that way). According to the code, the color should toggle on each update. I can confirm in the debugger that the BackColor property is indeed changed but not reflected by the UltraGrid.

Am I missing something here? I have gone through all the samples and examples and couldn't find a solution to this problem. Please help.