Hi Brad,

The symbol of the completion of row navigation is the CurrentRow property
of the DataGridView is changed. Unfortunately, DataGridView doesn't provide
such a CurrentRowChanged event.  

Since the CurrentRow property of the DataGridView refers the row containing
the current cell and DataGridView provides CurrentCellChanged event, we
could make use of the CurrentCellChanged event to inform of the completion
of row navigation.

Yes, you are right. When you navigate through the rows in a DataGridView,
the RowEnter and RowLeave events occur before the CurrentCellChanged event.
So these two events aren't appropriate to use in this case.

BTW, the CurrentCellChanged event will be raised when changing cells within
a row, which is not really what you want.

To solve this problem, I think you could add a variable in your program
indicating the index of the last current row. When the CurrentCellChanged
event rises, you may check whether the value of  
this.DataGridView1.CurrentCell.RowIndex is equal to the value of the
variable.

If the result is Yes, don't call the code for the extra processing.
Otherwise, set the value of the variable to the lastest value of
CurrentCell.RowIndex and call the code to do extral processing.

Hope this helps.
If you have anything unclear, please feel free to let me know.

Sincerely,
Linda Liu
Microsoft Online Community Support

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