>>Before you rebuild the record source cursor, set the RecordSource property to "", rebuild your cursor, and then set it back to your cursor name.
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>You got it. I found out that setting the RecordSource property again made the data appear. I'll do it the way you suggest.
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>I'm remembering now that contained objects are initialized first and the container last. So of course there was no cursor when the grid was first instantiated.
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>I tried arranging the columns in the cursor in the same order as the grid columns and leaving the ControlSource for each of the column textboxes empty. But when I loaded the grid with data it added 6 columns (to match the cursor) and changed all of my column widths. So it looks like I need to set all of the textbox ControlSource individually.

If you create a cursor in the Form.Load event, it will be available when the grid instanciates. I do this all the time, and retain grid property settings. Just remember to blank out the recordsource before recreating the cursor on the fly, and set it back afterwards.