I have a DGV that is bound to a DataTable. I handle the DataGridView.RowsAdded() event, and in certain circumstances, I set the Visible property of some rows to false. It properly hides the row (I actually *never* see the row, because I'm doing this in the RowsAdded event). However, there's a strange occurence where if the hidden row is the 2nd to last row in the DGV, for example:

row0: Visible = true

row1: Visible = true

row2: Visible = false

row3: Visible = true

If I then remove the 4th row from the DataTablewhich is bound to the DGV, the 4th row (index 3) deletes as it should, but row2 is now visible!Why is the removal (and subsequent re-binding) of the DataTable row causing the Visible property to be true for rows that I've already set Visible to false? And moreover, how can I prevent this?

Thanks,

Rick

If I set a row's Visible property to false, it is hidden as I would expect. However, if the row beneath where the hidden row should be (so row3 in my original post) is selected -- meaning the entire row is selected -- and this row is deleted from the underlying DataTable (which subsequently deletes the row from the DataGridView), then the hidden row is suddenly visible again! It must be the row directly beneath where the hidden row exists, and IT MUST BE THE LAST ROW of the DataGridView. In other words, if row4 is deleted from the scenario below:

so if row4 (the last row) is selected when it is removed, the bug does not occur. But in this scenario:

Why is this occurring? Is this a "bug" or intended behavior of the DGV? Does anyone have any suggestions for a workaround?

Thanks,

Rick