I don't remember where I saw it Kevin, but there is a way to make a checkbox be tri-state. I suspect if you google that, you might find your answer in what you need.
Tim

>I want to bind a checkbox to a null column in a dataset. Some of the values in the data are null:
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>

>chkDropShip.DataBindings.Add("Checked", _dsResults, sTableName + ".DropShip");
>

>
>I get "Object cannot be cast from DBNull to other types"
>
>How do I correctly bind this?